Multi-motor driving power system for high-power pump

Abstract

The utility model discloses a multi-motor driving power system for a high-power pump, which comprises a transmission case vertically arranged, one side wall of the transmission case is provided with a plurality of power input ends, the other opposite side wall of the transmission case is provided with a power output end, any power input end is connected with the power output end of a flange motor, and the flange motor is connected with the power output end of the flange motor. The power output end of the transmission case is connected with the power input end of the fracturing pump; and the motor supporting parts are arranged among the plurality of flange motors and are used for connecting the plurality of flange motors into a whole. According to the utility model, the motor supporting parts are arranged among the flange motors, and the plurality of flange motors are connected into a whole, so that the operation of the flange motors is more stable, the reliability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling and production equipment. More specifically, this utility model relates to a multi-motor drive power system for high-power pumps. Background Technology

[0002] In oil and gas field fracturing operations, fracturing pumps, as crucial power equipment, require efficient and stable power output. To improve the working efficiency of fracturing pumps and reduce equipment configuration costs, a novel multi-motor distributed drive scheme has been proposed. This scheme utilizes multiple high-speed motors working collaboratively to achieve more efficient power transmission while significantly reducing equipment costs. However, due to the multiple power sources and high input speeds, the multi-motor drive scheme suffers from problems such as excessive vibration and displacement, leading to unstable system operation and negatively impacting the normal use of the equipment.

[0003] Therefore, there is a need to provide a high-power pump multi-motor drive system to solve problems such as poor stability and large vibration displacement in multi-motor drive systems, and to improve the efficiency and reliability of the overall drive system. Summary of the Invention

[0004] Another objective of this invention is to provide a high-power pump multi-motor drive power system with good stability and smooth operation.

[0005] To achieve these objectives and other advantages according to this utility model, a multi-motor drive power system for high-power pumps is provided, comprising:

[0006] The transmission box is vertically arranged. Multiple power input terminals are provided on one side wall of the transmission box, and a power output terminal is provided on the opposite side wall of the transmission box. Any power input terminal is connected to the power output terminal of the flange motor, and the power output terminal of the transmission box is connected to the power input terminal of the fracturing pump.

[0007] A motor support component is disposed between multiple flange motors for connecting the multiple flange motors into a whole.

[0008] Preferably, a support device is fixedly installed on the transmission box, and the support device is used to support the transmission box and the plurality of flange motors.

[0009] Preferably, the motor support component includes multiple U-shaped plates, which are respectively disposed between the multiple flange motors. The two side plates of any U-shaped plate are respectively connected to the outer side walls of two adjacent flange motors. The bottom plates of the multiple U-shaped plates are respectively connected to the same first ring through multiple screws. The multiple flange motors are arranged at intervals along the circumference of the first ring.

[0010] Preferably, the U-shaped plate located at the lower part of the first ring is also connected to the support device through a first connecting rod, with one end of any first connecting rod connected to the bottom plate of the corresponding U-shaped plate and the other end connected to the support device.

[0011] Preferably, the motor support component includes multiple connecting seats, which are respectively disposed between the multiple flange motors. The two sides of any connecting seat are respectively connected to the outer side walls of two adjacent flange motors. One end of the multiple connecting seats is connected to the same second ring. The multiple flange motors are spaced apart along the circumference of the second ring. The other end of the connecting seat located below the second ring is also connected to one end of a second connecting rod. The other end of the second connecting rod is connected to the support device.

[0012] Preferably, the connecting seat is connected to the second ring via a screw.

[0013] Preferably, the motor support component includes multiple connectors, which are respectively disposed between the multiple flange motors. Each connector is connected to the outer side walls of two adjacent flange motors on both sides. One end of each connector is connected to the same third ring. The multiple flange motors are spaced apart along the circumference of the third ring. A T-shaped connecting rod is also provided at the lower part of the third ring. The two ends of the horizontal part of the T-shaped connecting rod are respectively connected to the other ends of the corresponding connectors. The end of the horizontal part is also hinged to one end of the third connecting rod. The other end of the third connecting rod is hinged to the support device. The vertical part of the T-shaped connecting rod is connected to the transmission box through a support.

[0014] Preferably, the motor support component includes multiple limiting blocks distributed among the multiple flange motors and fixedly mounted on the side wall of the transmission box. Each limiting block is engaged with the middle of the pull rod, and the two ends of the pull rod are respectively connected to the outer side walls of two adjacent flange motors.

[0015] This utility model has at least the following beneficial effects: By setting a motor support component between multiple flange motors and connecting multiple flange motors into a whole through the motor support component, this utility model can ensure that the flange motors run more smoothly and improve the reliability and service life of the equipment.

[0016] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a transmission box and support device according to an embodiment of the present utility model;

[0018] Figure 2This is a schematic diagram of the flange motor described in the above embodiments;

[0019] Figure 3 This is a schematic diagram of the structure of the motor support component according to Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the motor support component according to Embodiment 2 of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the motor support component according to Embodiment 3 of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the motor support component in Embodiment 4 of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the motor support component according to Embodiment 5 of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the motor support component according to Embodiment Six of this utility model;

[0025] Explanation of reference numerals on the accompanying drawings:

[0026] 1. Transmission box; 2. Power output end of transmission box; 3. Transmission box base plate; 4. Flange motor; 5. Power output end of flange motor; 6. Support point; 7. Support leg; 8. First ring; 9. U-shaped plate; 10. Screw; 11. First connecting rod; 12. Second ring; 13. Connecting seat; 14. Second connecting rod; 15. Third ring; 16. Connecting piece; 17. T-shaped connecting rod; 18. Third connecting rod; 19. Support; 20. Limiting block; 21. Pull rod. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be noted that in the description of this utility model, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] like Figure 1-8 As shown, this utility model provides a multi-motor drive power system for high-power pumps, comprising:

[0030] The transmission box 1 is vertically arranged. Multiple power input terminals are provided on one side wall of the transmission box 1, and a power output terminal is provided on the opposite side wall of the transmission box 1. Any power input terminal is connected to the power output terminal 5 of the flange motor, and the power output terminal 2 of the transmission box is connected to the power input terminal of the fracturing pump.

[0031] A motor support component is disposed between the plurality of flange motors and is used to connect the plurality of flange motors 4 into a whole.

[0032] In the above technical solutions, such as Figure 1 As shown, the bottom of the transmission box base plate 3 has mounting holes, through which the transmission box 1 is mounted on the support platform; the transmission box 1 is a multi-input single-output composite transmission box, which includes multiple power input ends and one power output end. The power output ends 5 of multiple flange motors are connected one-to-one with the multiple power input ends of the transmission box, and the power output end 2 of the transmission box is connected with the power input end of the fracturing pump. The fracturing pump is driven by multiple flange motors 4; Figure 2 As shown, the flange motor 4 is a new energy high-speed motor. The flange motor 4 is provided with an auxiliary support point 6 at a specific position. The motor support component is used to connect with the flange motor support point 6. The multiple flange motors 4 are connected into a whole through the motor support component to ensure that the flange motor 4 runs more smoothly, reduce the amount of vibration displacement, and improve the reliability and service life of the equipment. The motor support component can be a rigid connection component, a flexible connection component, a tie rod, or other structures.

[0033] In another technical solution, a support device is fixedly installed on the transmission box 1, and the support device is used to support the transmission box 1 and the plurality of flange motors 4.

[0034] In this technical solution, the support device is used to improve the support stability of the transmission box 1 mounted on the bearing platform, such as... Figure 1 As shown, the support device includes two legs 7, which are symmetrically arranged at both ends of the transmission box base plate 3. One end of each leg 7 is connected to the end of the transmission box base plate 3 away from the transmission box 1, and the other end is connected to the outer peripheral side wall of the transmission box 1. The legs 7, the transmission box base plate 3 and the transmission box 1 form a triangular structure on the side, which improves the support stability of the transmission box 1 when it is installed on the bearing platform.

[0035] In another technical solution, the motor support component includes a plurality of U-shaped plates 9, which are respectively disposed between a plurality of flange motors 4. The two side plates of any U-shaped plate 9 are respectively connected to the outer side walls of two adjacent flange motors 4. The bottom plates of the plurality of U-shaped plates 9 are respectively connected to the same first ring 8 through a plurality of screws 10. The plurality of flange motors 4 are arranged at intervals along the circumference of the first ring 8.

[0036] The U-shaped plate 9 located at the lower part of the first ring 8 is also connected to the support device through the first connecting rod 11. One end of any first connecting rod 11 is connected to the bottom plate of the corresponding U-shaped plate 9, and the other end is connected to the support device.

[0037] The motor support component includes multiple connecting seats 13, which are respectively disposed between multiple flange motors 4. Each connecting seat 13 is connected to the outer side walls of two adjacent flange motors 4 on both sides. One end of the multiple connecting seats 13 is connected to the same second ring 12. The multiple flange motors 4 are spaced apart along the circumference of the second ring 12. The other end of the connecting seat 13 located below the second ring 12 is also connected to one end of the second connecting rod 14. The other end of the second connecting rod 14 is connected to the support device.

[0038] The connecting seat 13 is connected to the second ring 12 via a screw 10;

[0039] The motor support component includes multiple connectors 16, which are respectively disposed between multiple flange motors 4. Both sides of any connector 16 are connected to the outer side walls of two adjacent flange motors 4. One end of the multiple connectors 16 is connected to the same third ring 15. The multiple flange motors 4 are spaced apart along the circumference of the third ring 15. A T-shaped connecting rod 17 is also provided at the lower part of the third ring 15. The two ends of the horizontal part of the T-shaped connecting rod 17 are respectively connected to the other end of the corresponding connector 16. The end of the horizontal part is also hinged to one end of the third connecting rod 18. The other end of the third connecting rod 18 is hinged to the support device. The vertical part of the T-shaped connecting rod 17 is connected to the transmission box through a support 19.

[0040] The motor support component includes multiple limiting blocks 20 distributed among the multiple flange motors 4 and fixedly installed on the side wall of the transmission box 1. Each limiting block 20 is engaged with the middle of the pull rod 21, and the two ends of the pull rod 21 are respectively connected to the outer side walls of two adjacent flange motors 4.

[0041] In this technical solution, the motor support components are adjusted according to the actual number and distribution of the flange motors 4 on the transmission box 1. The motor support components can be set between flange motors 4, between flange motors 4 and the transmission box 1, or between flange motors 4 and the support device, using various setting forms to stably fix the flange motors 4 on the outer wall of the transmission box 1, ensuring smoother operation of the flange motors 4 and improving the reliability and service life of the equipment. In actual application, the appropriate motor support components can be flexibly selected according to the situation, making the application more widespread and improving the ease of equipment installation.

[0042] <Example 1>

[0043] like Figure 3 As shown, the motor support component includes a first ring 8 located at the center of the distribution of multiple flange motors 4, and U-shaped plates 9 respectively disposed between the multiple flange motors 4. Adjacent flange motors 4 are connected and fixed by U-shaped plates 9, and each U-shaped plate 9 is connected to the first ring 8 by screws 10. This achieves the connection of multiple flange motors 4 into a whole by U-shaped plates 9, first ring 8, and screws 10, ensuring the stability of flange motors 4 during operation and reducing vibration displacement. The two side plates of U-shaped plates 9 can be connected and fixed to the support points 6 on the flange motors by bolts. One end of the screw 10 is installed on the bottom plate of U-shaped plate 9 by bolts, and the other end is installed on the first ring 8 by bolts. The first ring 8 is located at the center of the distribution of multiple flange motors 4, and multiple U-shaped plates 9 are distributed between multiple flange motors 4. The symmetrical layout can further enhance the structural stability. The U-shaped plates 9 can be deformed during installation, reducing the assembly difficulty.

[0044] <Example 2>

[0045] like Figure 4 As shown, to further improve the stability of the flange motor 4 during operation, based on Embodiment 1, multiple first connecting rods 11 can be set in the lower half of the transmission box 1 according to the number of U-shaped plates 9. The U-shaped plates 9 at the corresponding positions are connected to the support device through the first connecting rods 11, so as to connect the transmission box, flange motor and support device into a whole. Among them, the U-shaped plates 9 at both ends of the transmission box bottom plate 3 are hinged to the corresponding support legs 7 through the first connecting rods 11, and the U-shaped plates 9 above the transmission box bottom plate 3 are connected to the transmission box bottom plate 3 through the first connecting rods 11. The connection method can be bolt connection. The first connecting rods 11 can simultaneously tighten and support the flange motor 4, further improving the support rigidity.

[0046] <Example 3>

[0047] like Figure 5 As shown, in order to further improve the support rigidity of the motor support component, the U-shaped plate 9 and screw 10 in Embodiment 2 can be replaced with a high-rigidity connecting seat 13. The two sides of the connecting seat 13 are connected to the support points 6 on the outer side walls of the two adjacent flange motors 4 by bolts. One end of the connecting seat 13 is connected to the second ring 12 by bolts. The connecting seat 13 located in the lower half of the transmission box 1 is connected to the support device and the transmission box 1 as a whole by the second connecting rod 14.

[0048] <Example 4>

[0049] like Figure 6 As shown, when the diameter of the second ring 12 is small and the end of the connecting seat 13 cannot be connected to the second ring 12 by bolts, the end of the connecting seat 13 can be connected to the second ring 12 by screw 10.

[0050] <Example 5>

[0051] like Figure 7 As shown, to further improve the overall integrity of the connection between the flange motor 4 and the transmission box 1, enhance the stability of the flange motor 4 during operation, and disperse pressure to prevent local stress concentration, the motor support component consists of a third ring 15, multiple connectors 16, a T-shaped connecting rod 17, multiple third connecting rods 18, and a support 19. The third ring 15 is located at the distribution center of the multiple flange motors 4. The multiple connectors 16 connect the multiple flange motors 4 and the third ring 15 into a whole. The connectors 16 can adopt a U-shaped plate structure with a large size. Its two side plates are connected to the support points 6 on the side walls of the two adjacent flange motors by bolts. The bottom plate of the connector 16 is fixed to the third ring 15 by bolts or welding. The two ends of the T-shaped connecting rod 17 are connected to the corresponding connectors 16 by bolts or welding. The two ends of the T-shaped connecting rod 17 are also hinged to the support leg 7 through the third connecting rod 18. The vertical part of the T-shaped connecting rod 17 is welded to the bottom plate of the transmission box through the support 19.

[0052] <Example 6>

[0053] like Figure 8 As shown, in order to simplify the connection method and improve the efficiency of connecting multiple flange motors 4 into a whole, the motor support component consists of a limiting block 20 and a pull rod 21 fixed on the side wall of the transmission box 1. When connecting, the pull rod 21 is first clamped on the limiting block 20, and the two ends of the pull rod 21 are connected to the support point 6 of the flange motor, so that multiple flange motors 4 can be connected into a whole. Since the limiting block 20 is fixed on the transmission box 1, the connection between the flange motor 4 and the transmission box 1 can also be fixed by connecting the pull rod 21 and the limiting block 20.

[0054] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A multi-motor drive power system for high-power pumps, characterized by, include: The transmission box is vertically arranged. Multiple power input terminals are provided on one side wall of the transmission box, and a power output terminal is provided on the opposite side wall of the transmission box. Any power input terminal is connected to the power output terminal of the flange motor, and the power output terminal of the transmission box is connected to the power input terminal of the fracturing pump. A motor support component is disposed between multiple flange motors for connecting the multiple flange motors into a whole. The motor support component includes multiple limiting blocks distributed between the multiple flange motors and fixedly disposed on the side wall of the transmission box. Any limiting block is engaged with the middle part of the pull rod. The two ends of the pull rod are respectively connected to the outer side walls of two adjacent flange motors.

2. The multi-motor drive power system for a high-power pump according to claim 1, wherein A support device is fixedly installed on the transmission box, and the support device is used to support the transmission box and the multiple flange motors.

3. The multi-motor drive power system for high-power pumps according to claim 2, characterized in that, The motor support component includes multiple U-shaped plates, which are respectively disposed between the multiple flange motors. The two side plates of any U-shaped plate are respectively connected to the outer side walls of two adjacent flange motors. The bottom plates of the multiple U-shaped plates are respectively connected to the same first ring through multiple screws. The multiple flange motors are arranged at intervals along the circumference of the first ring.

4. The multi-motor drive power system for high-power pumps according to claim 3, characterized in that, The U-shaped plate located at the lower part of the first ring is also connected to the support device through a first connecting rod. One end of any first connecting rod is connected to the bottom plate of the corresponding U-shaped plate, and the other end is connected to the support device.

5. The multi-motor drive power system for high power pumps of claim 2, wherein, The motor support component includes multiple connecting seats, which are respectively disposed between the multiple flange motors. Each connecting seat is connected to the outer side wall of two adjacent flange motors on both sides. One end of the multiple connecting seats is connected to the same second ring. The multiple flange motors are spaced apart along the circumference of the second ring. The other end of the connecting seat located below the second ring is also connected to one end of a second connecting rod. The other end of the second connecting rod is connected to the support device.

6. The multi-motor drive power system for high power pumps of claim 5, wherein, The connecting seat is connected to the second ring via a screw.

7. The multi-motor drive power system for high power pumps of claim 2, wherein, The motor support component includes multiple connectors, which are respectively disposed between the multiple flange motors. Each connector is connected to the outer side wall of two adjacent flange motors on both sides. One end of each connector is connected to the same third ring. The multiple flange motors are spaced apart along the circumference of the third ring. A T-shaped connecting rod is also provided at the lower part of the third ring. The two ends of the horizontal part of the T-shaped connecting rod are respectively connected to the other end of the corresponding connector. The end of the horizontal part is also hinged to one end of the third connecting rod. The other end of the third connecting rod is hinged to the support device. The vertical part of the T-shaped connecting rod is connected to the transmission box through a support.

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