CN215293512U - Fracturing pump of motor overhead - Google Patents

Abstract

The utility model relates to the technical field of fracturing pumps, and discloses a fracturing pump with an overhead motor, which comprises a shell, a driving motor arranged above the shell, output shafts arranged at the two ends of the driving motor and a driving gear arranged on the output shafts, wherein both sides of the shell are provided with protective shells, a driven gear meshed with the driving gear is arranged in each protective shell, mounting holes are arranged on the protective shells, mounting plates can be separately arranged at the mounting holes, an oil inlet main pipe is arranged through the mounting plates and fixedly connected with the mounting plates, the end part of the oil inlet main pipe in each protective shell is communicated with two C-shaped oil inlet branch pipes, C-shaped openings of the two oil inlet branch pipes are arranged in opposite directions, one end of each oil inlet branch pipe is communicated with the oil inlet main pipe, the other end of each oil inlet branch pipe is just opposite to the meshing part of the driving gear and the driven gear, and an oil outlet pipe communicated with the protective shells is also arranged on the protective shells, the oil outlet pipe is communicated with the middle part or the bottom part of the protective shell. The utility model discloses make the result of use better.

Description

Fracturing pump of motor overhead

Technical Field

The utility model relates to a fracturing pump technical field, in particular to fracturing pump of motor overhead.

Background

The fracturing pump is one of the important means for reforming oil and gas reservoirs in fracturing construction operation, and for low-permeability oil and gas wells, the purposes of stable production and yield increase can be achieved by means of fracturing operation. The fracturing pump is a working main machine of a fracturing truck, is the most direct execution equipment for realizing the fracturing process intention, and mainly comprises a power end assembly, a hydraulic end assembly and other components.

The power end of the fracturing pump generally mainly comprises a motor, an output shaft and a driving gear (with a smaller diameter) connected to the tail end of the output shaft, and the hydraulic end (also called a power end assembly) generally mainly comprises a driven gear (with a larger diameter), a crankshaft, a piston and the like; when the motor works, the driving gear is driven by the motor to rotate, the driving gear is meshed with the driven gear, and meanwhile, the driven gear drives the crankshaft to rotate after rotating. At present, in order to reduce the volume of the whole fracturing pump on the market, the motor is arranged at the top of a shell (a built-in crankshaft and the like) of the pressure pump in a part, the motor is a double-shaft extension motor, driving gears are arranged at two ends of the motor, driven gears are arranged on two sides of the crankshaft, and the two ends of the crankshaft can be driven when the crankshaft is driven to rotate.

Wherein driving gear and driven gear all are located the casing outside, because the environment that the fracturing pump used is mostly outdoor, consequently in order to prevent rust etc. all can establish at the protecting crust at the both ends of shell usually, driving gear and driven gear all are located this protecting crust (have the leakproofness of preferred, can also prevent lubricating oil exudation when can be rain-proof), and this protecting crust is all passed to the output shaft of motor and the tip of bent axle simultaneously to can normally rotate. Meanwhile, in order to lubricate the driving gear and the driven gear and play a role in cooling, an input oil pipe is arranged on the protective shell in a penetrating mode and used for continuously inputting lubricating oil between the driving gear and the driven gear, and the lubricating oil plays a role in lubricating and cooling; simultaneously have output oil pipe bottom the protecting crust, output oil pipe all communicates with the protecting crust with input oil pipe's one end, and the other end all communicates with a postbox, has one or two pumps simultaneously for go into the protecting crust with lubricating oil pump, and take lubricating oil out from the protecting crust, thereby the circulation flows, makes the lubrication can continuously keep, and can continuously cool off. However, the current oil inlet pipe is usually only a pipe facing the driving gear and the driven gear, and when the lubricating oil is output, the oil is easy to directly impact teeth on the driving gear and/or the driven gear, so that the lubricating oil is splashed, a part of or even more of the lubricating oil is not applied to the driving gear and the driven gear, namely, the lubricating oil is splashed and flows down, and the use effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fracturing pump of motor overhead aims at solving the poor problem of result of use.

The above technical purpose of the present invention can be achieved by the following technical solutions: a fracturing pump with a motor arranged at the top comprises a shell, a driving motor arranged above the shell, output shafts arranged at the two ends of the driving motor and driving gears arranged on the output shafts, wherein protective shells are arranged on the two sides of the shell, driven gears meshed with the driving gears are arranged in the protective shells, mounting holes are formed in the protective shells, mounting plates can be arranged at the mounting holes in a separable mode, an oil inlet main pipe penetrates through the mounting plates and is fixedly connected with the mounting plates, the oil inlet main pipe is located at the end part of each protective shell, two oil inlet branch pipes are communicated and arranged in a C shape, openings in the C shapes of the two oil inlet branch pipes are arranged in opposite directions, one end of each oil inlet branch pipe is communicated with the oil inlet main pipe, the other end of each oil inlet branch pipe is opposite to the meshing part of the driving gears and the driven gears, and oil outlet pipes communicated with the protective shells are further arranged on the protective shells, the oil outlet pipe is communicated with the middle part or the bottom of the protective shell.

The utility model discloses a further set up to: the outlet of one end of the oil inlet branch pipe, which is far away from the oil inlet main pipe, is in a horizontal flat shape.

The utility model discloses a further set up to: two be provided with the stabilizer on the inner wall of the C font of oil feed branch pipe, the both ends of stabilizer respectively with two the oil feed divides union coupling.

The utility model discloses a further set up to: the mounting plate is characterized by further comprising a supporting body, wherein two ends of the supporting body are fixedly connected with the stabilizing body and the inner wall of the mounting plate respectively.

The utility model discloses a further set up to: the supporter is provided with two, two the supporter connect in the both sides of stabilizer.

The utility model discloses a further set up to: the inner wall of the outlet end of the oil inlet main pipe is provided with a plurality of dispersions in parallel, the cross sections of the dispersions are V-shaped, openings of the V-shaped dispersions face the meshing position of the driving gear and the driven gear, and a set distance is reserved between the adjacent dispersions.

The utility model has the advantages that: when the fracturing power generation device is used, the driving motor drives the driving gear to rotate through the output shaft, the driven gear meshed with the driving gear is driven to rotate, and meanwhile, the driven gear drives the crankshaft to rotate, so that fracturing power is provided. Wherein be sealed between protective housing and the casing, it can prevent that rainwater from getting into, also can prevent simultaneously that lubricating oil from oozing (the mounting panel can be with the mounting hole sealed). In the working process, lubricating oil enters into two oil inlet branch pipes through the oil inlet main pipe, then flows out or spouts through the tail end (namely the outlet end) of the oil inlet branch pipe, wherein because two oil inlet branch pipes are C-shaped, and the openings of the two C-shaped are arranged in opposite directions, after the lubricating oil is spouted through the two oil inlet branch pipes, the moving directions of the lubricating oil on the two sides are in a cross shape, and the two lubricating oil flows can also cross between the driving gear and the driven gear, and then the lubricating oil flows between the driving gear and the driven gear after being poor.

After two strands of lubricating oil collide, the kinetic energy of the lubricating oil in the horizontal direction can be reduced to a certain extent, but the kinetic energy of the lubricating oil towards the meshing position of the driving gear and the driven gear is hardly influenced, so that the lubricating oil can normally act on the driving gear and the driven gear, but the impact acting force between the lubricating oil and the driving gear and the driven gear can be reduced, and the amount of the splashed lubricating oil can be reduced; meanwhile, the lubricating oil is divided into two parts and acts on the meshing position of the driving gear and the driven gear at the same time, so that the acting area of the lubricating oil can be enlarged, and the lubricating effect and the cooling effect are better. The conventional lubricating oil pipe is a straight pipe, the acting area or range of the conventional lubricating oil pipe is limited, and a larger speed is required for sufficient cooling, so that the splashing amount of the conventional lubricating oil pipe is larger, but the lubricating effect is not ideal; but after dividing lubricating oil through two oil intakes are in charge of, it is at first lower to the pressure requirement of lubricating oil, so reduce the emergence that splashes fundamentally, can make more lubricating oil use the meshing department of driving gear and driven gear through the mode of reposition of redundant personnel simultaneously, when having guaranteed the lubrication, can also play abundant cooling effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a fracturing pump with an overhead motor according to the present invention;

fig. 2 is a schematic structural diagram of a fracturing pump with an overhead motor according to the present invention, in which a side of a protective shell is removed;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of an embodiment of a driving gear and a driven gear in the fracturing pump with the top mounted motor of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is a schematic structural diagram of an embodiment of a driving gear and a driven gear in a fracturing pump with an overhead motor of the present invention;

FIG. 7 is an enlarged view of portion C of FIG. 6;

fig. 8 is an enlarged view of a portion D in fig. 7.

In the figure, 1, a housing; 2. a drive motor; 3. an output shaft; 4. a driving gear; 5. a protective shell; 6. a driven gear; 7. mounting a plate; 8. an oil inlet main pipe; 9. feeding an oil branch pipe; 10. an oil outlet pipe; 11. a stabilizer; 12. a support body; 13. a dispersion.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

A fracturing pump with a motor arranged at the top comprises a shell 1, a driving motor 2 arranged above the shell 1, output shafts 3 arranged at two ends of the driving motor 2 and driving gears 4 arranged on the output shafts 3, wherein protective shells 5 are arranged on two sides of the shell 1, driven gears 6 meshed with the driving gears 4 are arranged in the protective shells 5, mounting holes are formed in the protective shells 5, mounting plates 7 are detachably arranged at the mounting holes, an oil inlet header pipe 8 penetrates through the mounting plates 7 and is fixedly connected with the mounting plates 7, two C-shaped oil inlet branch pipes 9 are communicated with the end parts of the oil inlet header pipe 8 in the protective shells 5, C-shaped openings of the two oil inlet branch pipes 9 are oppositely arranged, one ends of the oil inlet branch pipes 9 are communicated with the oil inlet header pipe 8, the other end of the oil outlet pipe is opposite to the meshing position of the driving gear 4 and the driven gear 6, the protective shell 5 is further provided with an oil outlet pipe 10 communicated with the protective shell 5, and the oil outlet pipe 10 is communicated with the middle or the bottom of the protective shell 5. The outlet of one end of the oil inlet branch pipe 9, which is far away from the oil inlet main pipe 8, is in a horizontal flat shape.

Two be provided with stabilizer 11 on the inner wall of the C font of oil feed branch pipe 9, stabilizer 11's both ends respectively with two the oil feed is in charge of 9 and is connected. The device also comprises a supporting body 12, wherein two ends of the supporting body 12 are fixedly connected with the stabilizing body 11 and the inner wall of the mounting plate 7 respectively. The number of the supporting bodies 12 is two, and the two supporting bodies 12 are connected to both sides of the stabilizer 11.

A plurality of dispersions 13 are arranged in parallel on the inner wall of the outlet end of the oil inlet header pipe 8, the cross section of each dispersion 13 is in a V shape, the V-shaped opening of each dispersion 13 is right opposite to the meshing position of the driving gear 4 and the driven gear 6, and a set distance is reserved between adjacent dispersions 13 (only two parts are not in contact with each other, and the actual distance can be adjusted according to actual conditions, such as 2mm or other sizes).

The utility model provides a pair of fracturing pump of motor overhead, when using, driving motor 2 drives driving gear 4 through output shaft 3 and rotates, also is driven the rotation with 4 engaged with driving gear 6, and driven gear 6 has driven the crankshaft rotation simultaneously to the power of fracturing is provided. Wherein the space between the protective shell 5 and the housing 1 is sealed, which can prevent the entry of rainwater and the leakage of lubricating oil (the mounting plate 7 can seal the mounting hole). In the working process, lubricating oil enters the two oil inlet branch pipes 9 through the oil inlet main pipe 8 and then flows out or is sprayed out through the tail ends (namely outlet ends) of the oil inlet branch pipes 9, wherein the two oil inlet branch pipes 9 are C-shaped, and openings of the two C-shaped branch pipes are oppositely arranged, so that after the lubricating oil is sprayed out through the two oil inlet branch pipes 9, the moving directions of the lubricating oil on the two sides are crossed, the two lubricating oil flows are crossed when being applied to the driving gear 4 and the driven gear 6, and the lubricating oil flows between the driving gear 4 and the driven gear 6 after being poor.

After two strands of lubricating oil collide, the kinetic energy of the lubricating oil in the horizontal direction can be reduced to a certain extent, but the kinetic energy of the lubricating oil towards the meshing part of the driving gear 4 and the driven gear 6 is hardly influenced, so that the lubricating oil can normally act on the driving gear 4 and the driven gear 6, but the impact force among the lubricating oil, the driving gear 4 and the driven gear 6 can be reduced, and the amount of the splashed lubricating oil can be reduced; meanwhile, the lubricating oil is divided into two parts and simultaneously acts on the meshing part of the driving gear 4 and the driven gear 6, so that the acting area of the lubricating oil can be enlarged, and the lubricating effect and the cooling effect are better. The conventional lubricating oil pipe is a straight pipe, the acting area or range of the conventional lubricating oil pipe is limited, and a larger speed is required for sufficient cooling, so that the splashing amount of the conventional lubricating oil pipe is larger, but the lubricating effect is not ideal; but after dividing lubricating oil through two oil intakes and taking over 9, it is at first lower to the pressure requirement of lubricating oil, so reduce the emergence that splashes fundamentally, can make more lubricating oil use the meshing department of driving gear 4 and driven gear 6 through the mode of reposition of redundant personnel simultaneously, when having guaranteed lubricated, can also play abundant cooling effect.

Wherein the exit end of oil feed branch pipe 9 is horizontal to the platykurtic, therefore it is when the effect, can disperse open more, and the application range is wider, when two strands of lubricating oil take place to intersect simultaneously, also can carry out the reduction that can will on a larger scale to reduce from the side and splash. Furthermore, by means of the plurality of dispersions 13 at the outlet end of the oil inlet branch pipe 9, the lubricating oil can be divided into more streams, so that the acting area of the lubricating oil can be enlarged in a larger range, and meanwhile, the mutual counteracting kinetic energy of the lubricating oil can be larger.

The stabilizing body 11 between the two oil inlet branch pipes 9 and the supporting bodies 12 on two sides of the stabilizing body 11 ensure that the fixing and supporting effects on the oil inlet branch pipes 9 are better, ensure the stability of the positions and the shapes of the oil inlet branch pipes 9 and ensure that the oil inlet branch pipes can be normally used. Wherein supporter 12, oil feed divide pipe 9 etc. all with mounting panel 7 fixed connection, at the in-process of installation, only need with the oil feed divide pipe 9, the stabilizer 11 and supporter 12 all pass the mounting hole after, with mounting panel 7 and protective housing 5's shell fixed sealing connection can, simple and convenient.

It should also be understood that the internal construction of the frac pump, such as the crankshaft, piston rod, etc., is consistent with the frac pumps currently on the market, and does not affect the understanding and implementation of the present solution by those skilled in the art, even if the present application is not elaborated upon. Meanwhile, the free end of the oil outlet pipe 10 and the free end of the oil inlet header pipe 8 (i.e. the end outside the protective shell 5) are both communicated with a transfer cavity (not shown in the figure), a pump is arranged on the oil inlet header pipe 8 and can pump the lubricating oil in the transfer cavity into the protective shell 5 again, the oil outlet pipe 10 can be provided with the pump or not (if not, the lubricating oil in the protective shell 5 naturally flows back to the transfer cavity under the action of gravity); meanwhile, according to the actual situation, a cooling and heating pipeline (filled with hot water or hot oil) can be arranged on the outer wall of the transfer cavity; if cooling is needed, cooling liquid can be injected into the pipeline, so that the cooling effect on the recycled lubricating oil is improved; however, if the low temperature conditions such as winter are small, a heating medium may be introduced as the case may be, so that the lubricating oil is melted and used.

It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims (6)

1. The utility model provides a fracturing pump of motor overhead which characterized in that: the device comprises a shell (1), a driving motor (2) arranged above the shell (1), output shafts (3) arranged at two ends of the driving motor (2) and driving gears (4) arranged on the output shafts (3), wherein both sides of the shell (1) are provided with protective shells (5), driven gears (6) meshed with the driving gears (4) are arranged in the protective shells (5), mounting holes are formed in the protective shells (5), mounting plates (7) are detachably arranged at the mounting holes, an oil inlet main pipe (8) penetrates through the mounting plates (7) and is fixedly connected with the mounting plates (7), the end parts of the oil inlet main pipe (8) in the protective shells (5) are communicated with two oil inlet branch pipes (9) in a C shape, and the openings of the C shapes of the two oil inlet branch pipes (9) are arranged in opposite directions, one end of the oil inlet branch pipe (9) is communicated with the oil inlet main pipe (8), the other end of the oil inlet branch pipe is opposite to the meshing position of the driving gear (4) and the driven gear (6), an oil outlet pipe (10) communicated with the protective shell (5) is further arranged on the protective shell (5), and the oil outlet pipe (10) is communicated with the middle or the bottom of the protective shell (5).

2. The motor overhead fracturing pump of claim 1, wherein: the outlet of one end of the oil inlet branch pipe (9) far away from the oil inlet main pipe (8) is in a horizontal flat shape.

3. The motor overhead fracturing pump of claim 1, wherein: two be provided with on the inner wall of the C font of oil feed branch pipe (9) stabilizer (11), the both ends of stabilizer (11) respectively with two the oil feed is connected in branch pipe (9).

4. The motor overhead fracturing pump of claim 3, wherein: the device is characterized by further comprising a supporting body (12), wherein two ends of the supporting body (12) are fixedly connected with the inner walls of the stabilizing body (11) and the mounting plate (7) respectively.

5. The motor overhead fracturing pump of claim 4, wherein: the number of the supporting bodies (12) is two, and the two supporting bodies (12) are connected to two sides of the stabilizing body (11).

6. The motor overhead fracturing pump of claim 2, wherein: the inner wall of the outlet end of the oil inlet header pipe (8) is provided with a plurality of dispersions (13) in parallel, the cross section of each dispersion (13) is V-shaped, the V-shaped opening of each dispersion (13) is opposite to the meshing position of the driving gear (4) and the driven gear (6), and a set distance is reserved between every two adjacent dispersions (13).

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