Integrated multi-motor fracturing pump, fracturing truck and fracturing pry

Abstract

The invention provides an integrated multi-motor fracturing pump, a fracturing truck and a fracturing pry, and relates to the field of fracturing equipment. The fracturing pump comprises an integrated structure formed by integrating and connecting a crankcase assembly and two same transfer case assemblies arranged at the two ends of the crankcase assembly, a power box component with a fracturing pump base at the bottom, and a plurality of motors which are arranged above the crankcase assembly in a centralized mode, divided into two groups and connected with the input ends of the transfer case assemblies at the two ends respectively. And the fluid end component is connected with the output end of the crankcase assembly. The motor, the transfer case and the crankcase are integrated at the power end of the fracturing pump, so that the fracturing equipment which is compact in structure, small in occupied space, concentrated in gravity center, stable in operation, simple and convenient to drive, capable of reducing noise, energy consumption and emission, energy-saving and environment-friendly is provided; therefore, the technical problems that an existing electric drive fracturing device is complex in structure, high in requirement for the installation technology, large in overall weight, large in space size, inconvenient to transport and the like are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fracturing equipment, and more particularly to an integrated multi-motor fracturing pump, a fracturing vehicle and a fracturing skid. Background Art

[0002] During the oil and gas extraction process, fracturing equipment is often used to perform hydraulic fracturing operations on oil and gas wells. Fracturing involves injecting a certain volume and pressure of fracturing fluid into the well using a fracturing pump, creating cracks in the formation and improving the fluidity of oil and gas in the formation, thereby increasing the production of the oil and gas well.

[0003] In current oil and gas well stimulation operations, fracturing equipment primarily consists of mechanically driven fracturing pumps and motor-driven fracturing pumps. Mechanically driven fracturing pumps are powered by diesel engines, while motor-driven fracturing pumps are powered by electric motors. Compared to mechanically driven fracturing pumps, motor-driven fracturing pumps offer advantages such as lower noise, reduced emissions, and lower energy consumption. These advantages meet current energy conservation and emission reduction requirements for environmentally friendly operations, leading to the rise of electric fracturing technology, which has gradually become a new development trend.

[0004] In conventional motor-driven fracturing equipment, the fracturing pump itself is a separate device. Before use, the fracturing pump is quickly mounted on a transport vehicle using the base fracturing bolts. It is then connected to the motor, which serves as the drive element, to form the fracturing vehicle (or installed on a fracturing skid to form a fracturing skid). The connection between the motor and fracturing pump requires a series of transmission components, including the motor output flange, conversion flange I, coupling input flange, coupling, coupling output flange, conversion flange II, and fracturing pump input flange. This is not only complex and heavy, but the coaxial arrangement of the motor, these transmission components, and fracturing pump also results in a relatively long overall length (generally greater than 6 meters), a large footprint, and inconvenient installation, use, and transportation. Furthermore, the coaxial arrangement also requires high installation process requirements. Therefore, there is an urgent need to carry out an integrated design for the current conventional motor-driven fracturing equipment, and design a fracturing equipment with a compact structure, small space occupation, centralized center of gravity, smooth operation, simple transmission, reduced noise, reduced energy consumption, reduced emissions, energy saving and environmental protection, so as to solve the technical problems of the existing electric-driven fracturing equipment such as complex structure, high requirements for installation process, large overall weight, large space size, and inconvenient transportation. Summary of the Invention

[0005] The present invention addresses the shortcomings of the aforementioned prior art by providing an integrated multi-motor fracturing pump, fracturing truck, and fracturing skid. By integrating the motor, transfer case, and crankcase at the power end of the fracturing pump, the present invention provides a fracturing device with a compact structure, minimal space, a centralized center of gravity, stable operation, simple transmission, reduced noise, energy consumption, and emissions, and is energy-efficient and environmentally friendly. This device addresses the technical issues of existing electric-driven fracturing equipment, such as complex structure, demanding assembly processes, heavy weight, large dimensions, and inconvenient transportation.

[0006] The purpose of the present invention can be achieved by the following technical measures: An integrated multi-motor fracturing pump of the present invention includes a power box component formed by integrating and connecting a crankcase assembly and two identical transfer case assemblies arranged at both ends of the crankcase assembly to form an integrated structure, and a fracturing pump base at the bottom (the main function of the transfer case assembly is to transmit the driving force and rotation of the motor to the crankcase assembly, and the function of the crankcase assembly is mainly to convert the rotational torque into a linear torque - that is, the transmission pairs in the two transfer case assemblies rotate synchronously under the drive of two sets of identical motors, thereby driving the crankshaft in the crankcase assembly to rotate and the crankshaft connecting rod to swing. While the crankshaft connecting rod swings, it drives the hydraulic end plunger to linearly expand and contract, squeezing the fracturing fluid in the hydraulic end component, so that the fracturing fluid The hydraulic end component is discharged from the hydraulic end component at a certain displacement and pressure and then injected into the oil well formation to squeeze open the cracks, ultimately improving the fluidity of oil and gas in the formation and increasing the production of oil and gas wells). It is centrally arranged above the crankcase assembly and divided into two groups of motors connected to the input ends of the transfer case assemblies at both ends (the two groups of motors provide the same driving force to the two transfer case assemblies respectively to ensure the synchronous rotation of the two transfer case assemblies). The hydraulic end component connected to the output end of the crankcase assembly (for storing and outputting fracturing fluid); the transfer case assembly includes a transfer case housing (which provides installation space for the active pinion and the passive large gear, prevents dust, and improves operation safety), a gear mounted in the transfer case housing that forms a transmission pair through meshing transmission. The driven large gear and several driving small gears (through the meshing transmission of several driving small gears and the driven large gear, the driving force transmitted by the motor can be first converted into a large rotational torque and then transmitted to the next level crankshaft, so that when the rotational torque is converted into a linear torque through the crankcase assembly, a larger linear torque can be output, that is, the fracturing fluid in the hydraulic end component can be squeezed more forcefully, so that the fracturing fluid is discharged from the hydraulic end component with a larger displacement and pressure and then injected into the oil well formation to squeeze out the cracks), each driving small gear is sleeved on the corresponding motor output shaft, and the driving small gears rotate synchronously with the motor output shaft (the driving small gear rotates synchronously with the motor under the drive of the motor, so that the driving force of the motor can be squeezed more forcefully. The crankcase assembly includes a crankcase housing (which provides installation space for the crankshaft and crankshaft connecting rod, protects against dust, and improves operational safety), a crankshaft mounted within the crankcase housing, and a row of crankshaft connecting rods, the crankshaft connecting rods being mounted side by side on the crank throw of the crankshaft, with the two ends of the crankshaft respectively inserted into the center holes of the two passive large gears, and the three rotating synchronously (the passive large gears at both ends rotate synchronously under the drive of the two sets of motors and the transmission of the active pinion, thereby driving the crankshaft to rotate smoothly and transmitting the large rotational torque converted from the meshing of the transmission pair to the crankshaft. The crankshaft, in turn, drives the crankshaft connecting rods to oscillate when rotating smoothly);A row of hydraulic end plungers is installed at the input end of the hydraulic end component. These plungers are connected one-to-one to the crankshaft connecting rod. (As the crankshaft connecting rod swings, it drives the hydraulic end plungers to expand and contract linearly, squeezing the fracturing fluid in the hydraulic end component. This fluid is then discharged from the hydraulic end component at a certain displacement and pressure and injected into the oil well formation, opening cracks. This ultimately improves the fluidity of oil and gas in the formation and increases the production of the oil and gas well.)

[0007] The number of the motors in the present invention is equal to the number of the driving pinions, and they are connected via splines (ensuring that each driving pinion can achieve synchronous rotation with the motor output shaft under the drive of the corresponding motor).

[0008] In the present invention, each transmission pair comprises a passive large gear and at least two active small gears (by having multiple active small gears meshing with one passive large gear at the same time, on the one hand, the force is more evenly distributed and the transmission is smoother; on the other hand, the passive large gear has a larger rotational torque, which provides a guarantee for the crankcase assembly to convert it into a larger linear torque. In this way, the fracturing fluid in the hydraulic end component can be squeezed more forcefully, so that the fracturing fluid is discharged from the hydraulic end component with a larger displacement and pressure and then injected into the oil well formation to squeeze out the cracks). The rotation directions of the passive large gear and the active small gear are opposite; the diameters and rotation directions of the two active small gears are the same (to ensure uniform force and facilitate uniform arrangement).

[0009] The number of the hydraulic end plungers and the crankshaft connecting rods in the present invention is the same, which is equal to the number of crank throws of the crankshaft (to ensure uniform force and facilitate uniform arrangement).

[0010] The fracturing pump base of the present invention is a box beam structure, and bolt holes are processed on the upper surface of the fracturing pump base (by screwing the bolts, the fracturing pump can be quickly connected to the transport vehicle or skid).

[0011] The motors described in the present invention are variable frequency motors of the same model (to ensure that each driving pinion can rotate at the same speed).

[0012] A fracturing truck utilizing an integrated multi-motor fracturing pump of the present invention is composed of an integrated multi-motor fracturing pump quickly connected to a transport vehicle via a fracturing pump base and bolts (according to usage requirements, the integrated multi-motor fracturing pump and the transport vehicle are assembled to form a fracturing truck).

[0013] The fracturing skid using an integrated multi-motor fracturing pump of the present invention is composed of an integrated multi-motor fracturing pump quickly connected to a skid by means of a fracturing pump base and bolts (according to usage requirements, the integrated multi-motor fracturing pump and the skid are assembled to form a fracturing skid).

[0014] The design principles of the present invention are as follows: The present invention adopts a modular integrated design concept - the crankcase assembly and two identical transfer case assemblies arranged at both ends of the crankcase assembly are integrated and connected to form a power box component with an integrated structure and a fracturing pump base at the bottom. The motors are then concentrated above the crankcase assembly and divided into two groups, which are respectively connected to the input ends of the transfer case assemblies at both ends. In this way, the motors, transfer cases, and crankcases are all integrated into the power end of the fracturing pump. The two groups of motors provide the same driving force to the two transfer case assemblies respectively. The transfer case assembly can transmit the driving force and rotation of the motors to the crankcase assembly. The crankcase assembly can convert the rotational torque into linear torque. After the linear torque is output to the hydraulic end component, it can squeeze the fracturing fluid in the hydraulic end component, so that the fracturing fluid is discharged from the hydraulic end component at a certain displacement and pressure and then injected into the oil well formation to squeeze out the cracks, ultimately improving the fluidity of oil and gas in the formation and increasing the production of the oil and gas well. In this way, the present invention provides a fracturing pump with a compact structure, small space occupation, centralized center of gravity, stable operation, simple transmission, reduced noise, reduced energy consumption, reduced emissions, energy saving and environmental protection, thereby solving the technical problems of existing electric-driven fracturing equipment such as complex structure, high requirements for assembly process, large overall weight, large space size, and inconvenient transportation.

[0015] More specifically, the present invention, after an integrated design, replaces the numerous flanges, couplings, drive shafts and other long transmission components between the motor and the fracturing pump in the current conventional motor-driven fracturing equipment by using a motor in conjunction with a transmission pair consisting of large and small gears. This, on the one hand, can make the overall structure of the fracturing pump compact, greatly reduce the overall spatial size of the fracturing pump, occupy less space, and facilitate the overall layout of the fracturing truck or fracturing skid. On the other hand, it can simplify the transmission, concentrate the center of gravity, and ensure smooth operation. The specific transmission is that the passive large gears at both ends realize synchronous rotation under the drive of two sets of motors and the transmission of active small gears respectively, so that the crankshaft can be driven to rotate smoothly, and the large rotational torque converted after the transmission pair is engaged is transmitted to the crankshaft. When the crankshaft rotates smoothly, it will drive the crankshaft connecting rod to swing. While the crankshaft connecting rod swings, it also drives the hydraulic end plunger to linearly expand and contract, squeezing the fracturing fluid in the hydraulic end component, so that the fracturing fluid is discharged from the hydraulic end component with a certain displacement and pressure and then injected into the oil well formation to squeeze open the cracks, ultimately improving the fluidity of oil and gas in the formation and increasing the output of the oil and gas well. At the same time, the present invention is driven by a motor. Compared with the mechanically driven fracturing pump, the motor-driven fracturing pump has the advantages of low noise, low emissions, low energy consumption, energy saving and environmental protection, which meets the current environmental protection operation requirements of energy saving and emission reduction.

[0016] The technical effects of the present invention are as follows: The present invention integrates the motor, transfer case and crankcase into the power end of the fracturing pump, thereby providing a fracturing equipment with a compact structure, small space occupation, centralized center of gravity, smooth operation, simple transmission, reduced noise, reduced energy consumption, reduced emissions, energy saving and environmental protection, thereby solving the technical problems of existing electric-driven fracturing equipment such as complex structure, high requirements for assembly process, large overall weight, large space dimensions and inconvenient transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the integrated multi-motor fracturing pump of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure after rotating and removing the transfer case housing.

[0019] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the power box.

[0020] Explanation of the serial numbers in the figure: 1. Motor; 2. Power box components; 2-1. Crankcase assembly, 2-1-1. Crankshaft, 2-1-1-1. Crank throw, 2-1-2. Crankshaft connecting rod, 2-1-3. Crankcase housing; 2-2. Transfer case assembly, 2-2-1. Driving pinion, 2-2-2. Driven large gear, 2-2-3. Transfer case housing; 3. Hydraulic end components, 3-1. Hydraulic end plunger; 4. Fracturing pump base. DETAILED DESCRIPTION

[0021] The present invention will be further described with reference to the accompanying drawings: like Figures 1 to 3As shown, an integrated multi-motor fracturing pump, fracturing vehicle and fracturing skid of the present invention includes a power box component 2 formed by integrating a crankcase assembly 2-1 and two identical transfer case assemblies 2-2 arranged at both ends of the crankcase assembly to form an integrated structure, and a fracturing pump base 4 at the bottom (the main function of the transfer case assembly 2-2 is to transmit the driving force and rotation of the motor 1 to the crankcase assembly 2-1, and the function of the crankcase assembly 2-1 is mainly to convert the rotational torque into a linear torque - that is, the transmission pairs in the two transfer case assemblies 2-2 rotate synchronously under the drive of two sets of identical motors 1, thereby driving the crankshaft 2-1-1 in the crankcase assembly 2-1 to rotate , the crankshaft connecting rod 2-1-2 swings, and the crankshaft connecting rod 2-1-2 swings while driving the hydraulic end plunger 3-1 to linearly expand and contract, squeezing the fracturing fluid in the hydraulic end component 3, so that the fracturing fluid is discharged from the hydraulic end component 3 at a certain displacement and pressure and then injected into the oil well formation to squeeze out the cracks, ultimately improving the fluidity of oil and gas in the formation and increasing the output of the oil and gas well). A plurality of motors 1 are centrally arranged above the crankcase assembly 2-1 and divided into two groups, which are respectively connected to the input ends of the transfer case assemblies 2-2 at both ends (the two groups of motors 1 provide the same driving force to the two transfer case assemblies 2-2 respectively, ensuring that the two transfer case assemblies 2-2 rotate synchronously), and the crankcase The output end of the assembly 2-1 is connected to the hydraulic end component 3 (for storing and outputting fracturing fluid); the transfer case assembly 2-2 includes a transfer case housing 2-2-3 (providing installation space for the driving pinion 2-2-1 and the passive large gear 2-2-2, preventing dust, and improving operation safety), a passive large gear 2-2-2 and a plurality of driving pinions 2-2-1 installed in the transfer case housing and forming a transmission pair through meshing transmission (through the meshing transmission of the plurality of driving pinions 2-2-1 and the passive large gear 2-2-2, the driving force transmitted by the motor 1 can be first converted into a larger rotational torque and then transmitted to the next stage crankshaft 2-1-1, so that the driving force transmitted by the motor 1 can be ... transmitted to the next stage crankshaft 2-1-1, so that the driving force transmitted by the motor 1 can be converted into a larger rotational torque and transmitted to the next stage crankshaft 2-1-1, so that the driving force transmitted by the motor 1 can be converted into a larger rotational torque and transmitted to the next stage When the rotational torque is converted into linear torque by the crankcase assembly 2-1, a greater linear torque can be output, that is, the fracturing fluid in the hydraulic end component 3 can be squeezed more forcefully, so that the fracturing fluid is discharged from the hydraulic end component 3 with a greater displacement and pressure and then injected into the oil well formation to squeeze out the cracks). Each driving pinion 2-2-1 is mounted on the corresponding motor output shaft 1-1, and the driving pinion 2-2-1 rotates synchronously with the motor output shaft 1-1 (the driving pinion 2-2-1 rotates synchronously with the motor 1 under the drive of the motor 1, so that the driving force and rotation of the motor 1 can be transmitted to the driven large gear 2-2-2 meshing with the driving pinion 2-2-1);The crankcase assembly 2-1 includes a crankcase housing 2-1-3 (which provides installation space for the crankshaft 2-1-1 and the crankshaft connecting rod 2-1-2, prevents dust, and improves operation safety), a crankshaft 2-1-1 installed in the crankcase housing and a row of crankshaft connecting rods 2-1-2, the crankshaft connecting rods 2-1-2 are hung side by side on the crank throw 2-1-1-1 of the crankshaft 2-1-1, and the two ends of the crankshaft 2-1-1 are respectively inserted into the center holes of the two passive large gears 2-2-2, and the three rotate synchronously (the passive large gears 2-2-2 at both ends are driven by the two sets of motors 1 and the driving small gear 2-2-1 respectively to achieve synchronous rotation, so that the crankshaft 2-1-1 can be driven The hydraulic end component 3 rotates smoothly, and the large rotational torque converted from the engagement of the transmission pair is transmitted to the crankshaft 2-1-1. When the crankshaft 2-1-1 rotates smoothly, it drives the crankshaft connecting rod 2-1-2 to swing. A row of hydraulic end plungers 3-1 is provided at the input end of the hydraulic end component 3. The hydraulic end plungers 3-1 are connected to the crankshaft connecting rods 2-1-2 in a one-to-one correspondence. (As the crankshaft connecting rods 2-1-2 swing, they drive the hydraulic end plungers 3-1 to expand and contract linearly, squeezing the fracturing fluid in the hydraulic end component 3. The fracturing fluid is discharged from the hydraulic end component 3 at a certain displacement and pressure and then injected into the oil well formation, thereby squeezing out cracks, ultimately improving the fluidity of oil and gas in the formation and increasing the production of the oil and gas well.)

[0022] The number of the motors 1 described in the present invention is equal to the number of the driving pinions 2-2-1, and they are connected by splines (ensuring that each driving pinion 2-2-1 can achieve synchronous rotation with the motor output shaft 1-1 under the drive of the corresponding motor 1).

[0023] In the present invention, each transmission pair has a passive large gear 2-2-2 and at least two active small gears 2-2-1 (by having multiple active small gears 2-2-1 meshing with one passive large gear 2-2-2 at the same time, on the one hand, the force is more evenly distributed and the transmission is smoother; on the other hand, the passive large gear 2-2-2 has a larger rotational torque, which provides a guarantee for the crankcase assembly 2-1 to be converted into a larger linear torque, so that the fracturing fluid in the hydraulic end component 3 can be squeezed more forcefully, so that the fracturing fluid is discharged from the hydraulic end component 3 with a larger displacement and pressure and then injected into the oil well formation to squeeze out the cracks). The rotation directions of the passive large gear 2-2-2 and the active small gear 2-2-1 are opposite; the diameters and rotation directions of the two active small gears 2-2-1 are the same (to ensure uniform force and facilitate uniform arrangement).

[0024] The number of the hydraulic end plungers 3-1 and the crankshaft connecting rods 2-1-2 in the present invention is the same, which is equal to the number of the crank throws 2-1-1-1 of the crankshaft 2-1-1 (to ensure uniform force and facilitate uniform arrangement).

[0025] The fracturing pump base 4 of the present invention is a box beam structure, and bolt holes are processed on the upper surface of the fracturing pump base (by screwing the bolts, the fracturing pump can be quickly connected to the transport vehicle or skid).

[0026] The motor 1 described in the present invention is a variable frequency motor of the same model (to ensure that each driving pinion 2-2-1 can rotate at the same speed).

[0027] A fracturing truck utilizing an integrated multi-motor fracturing pump of the present invention is composed of an integrated multi-motor fracturing pump quickly connected to a transport vehicle via a fracturing pump base 4 and bolts (according to usage requirements, the integrated multi-motor fracturing pump and the transport vehicle are assembled to form a fracturing truck).

[0028] A fracturing skid utilizing an integrated multi-motor fracturing pump of the present invention is composed of an integrated multi-motor fracturing pump quickly connected to a skid via a fracturing pump base 4 and bolts (according to usage requirements, the integrated multi-motor fracturing pump and the skid are assembled to form a fracturing skid).

[0029] The specific use of the present invention is as follows: First, follow the Figures 1 to 3 The integrated multi-motor fracturing pump is assembled according to the structure and positional relationship shown and described above. Then, according to the needs of use, the assembled integrated multi-motor fracturing pump is quickly connected to the transport vehicle with the help of the fracturing pump base 4 and bolts to form a fracturing vehicle, or connected to the skid to form a fracturing skid. Then, the fracturing vehicle or fracturing skid is moved to the work site. Subsequently, each motor 1 is started at the same time, and each motor 1 rotates at the same speed, driving the corresponding active pinions 2-2-1 to rotate synchronously at the same speed; the passive large gears 2-2-2 at both ends respectively achieve synchronous rotation under the drive of the two groups of motors 1 and the transmission of the active pinions 2-2-1, that is, the passive large gear 2-2-2 is engaged with several active pinions 2-2-1 in the same transmission pair, which can convert the driving force transmitted by the motor 1 into a larger rotational torque before transmitting it to the crankshaft of the next level. 2-1-1, which can drive the crankshaft 2-1-1 to rotate smoothly; when the crankshaft 2-1-1 rotates smoothly, it will drive the crankshaft connecting rod 2-1-2 to swing. While the crankshaft connecting rod 2-1-2 swings, it will drive the hydraulic end plunger 3-1 to retract and contract linearly, squeezing the fracturing fluid in the hydraulic end component 3, so that the fracturing fluid is discharged from the hydraulic end component 3 at a certain displacement and pressure and then injected into the oil well formation to squeeze out the cracks, ultimately improving the fluidity of oil and gas in the formation and increasing the output of the oil and gas well.

Claims

1. An integrated multi-motor fracturing pump, characterized by: The fracturing pump comprises a power box component (2) formed by integrating and connecting a crankcase assembly (2-1) and two identical transfer case assemblies (2-2) arranged at both ends of the crankcase assembly, forming an integrated structure and having a fracturing pump base (4) at the bottom; a plurality of motors (1) arranged above the crankcase assembly (2-1) and divided into two groups respectively connected to the input ends of the transfer case assemblies (2-2) at both ends; and a hydraulic end component (3) connected to the output end of the crankcase assembly (2-1); the transfer case assembly (2-2) comprises a transfer case housing (2-2-3), a passive large gear (2-2-2) installed in the transfer case housing and forming a transmission pair through meshing transmission, and a plurality of active small gears (2-2-1), each active small gear (2-2-3) having a plurality of driving small gears (2-2-1) connected to the output end of the crankcase assembly (2-1); 1) are all sleeved on the corresponding motor output shaft (1-1), and the driving pinion (2-2-1) rotates synchronously with the motor output shaft (1-1); the crankcase assembly (2-1) includes a crankcase shell (2-1-3), a crankshaft (2-1-1) installed in the crankcase shell, and a row of crankshaft connecting rods (2-1-2), the crankshaft connecting rods (2-1-2) are hung side by side on the crank throw (2-1-1-1) of the crankshaft (2-1-1), the two ends of the crankshaft (2-1-1) are respectively inserted into the center holes of the two driven large gears (2-2-2), and the three rotate synchronously; a row of hydraulic end plungers (3-1) are provided at the input end of the hydraulic end component (3), and the hydraulic end plungers (3-1) are connected to the crankshaft connecting rods (2-1-2) in a one-to-one correspondence.

2. The integrated multi-motor fracturing pump according to claim 1, characterized in that: The number of the motors (1) is equal to the number of the driving pinions (2-2-1), and they are connected via splines.

3. The integrated multi-motor fracturing pump according to claim 1, characterized in that: Each transmission pair comprises a driven large gear (2-2-2) and at least two driving small gears (2-2-1). The driven large gear (2-2-2) and the driving small gears (2-2-1) rotate in opposite directions. The two driving small gears (2-2-1) have the same diameter and rotation direction.

4. The integrated multi-motor fracturing pump according to claim 1, characterized in that: The number of the hydraulic end plungers (3-1) and the crankshaft connecting rods (2-1-2) is the same, and is equal to the number of the crank throws (2-1-1-1) of the crankshaft (2-1-1).

5. The integrated multi-motor fracturing pump according to claim 1, characterized in that: The fracturing pump base (4) is a box beam structure, and bolt holes are machined on the upper plane of the fracturing pump base.

6. The integrated multi-motor fracturing pump according to claim 1, characterized in that: The motors (1) are variable frequency motors of the same model.

7. A fracturing truck using the integrated multi-motor fracturing pump according to claim 1, characterized in that: The fracturing vehicle is composed of an integrated multi-motor fracturing pump that is quickly connected to a transport vehicle via a fracturing pump base (4) and bolts.

8. A fracturing skid using the integrated multi-motor fracturing pump according to claim 1, characterized in that: The fracturing skid is composed of an integrated multi-motor fracturing pump which is quickly connected to the skid by means of a fracturing pump base (4) and bolts.

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