Abstract: The present disclosure relates to a box body of a reduction gearbox, comprising an input side box body (2), a lateral box body (3), and an output side box body (4), wherein the input side box body (2) and the output side box body (4) are connected to the lateral box body (3) through a plurality of bolts (9). The input side box body is provided with a first bearing pedestal (20), a second bearing pedestal (20), and a plurality of radial ribbed slabs (5). The plurality of radial ribbed slabs (5) comprise a plurality of first radial ribbed slabs (5) and a plurality of second radial ribbed slabs (5), the first radial ribbed slabs (5) radially extending outward from a circle center of the first bearing pedestal (20), and the second radial ribbed slabs (5) radially extending outward from a circle center of the second bearing pedestal (20).

Abstract: The present disclosure relates to a reduction gearbox, comprising: a box body (2?); and an oil return port (4?), the oil return port (4?) being on a bottom wall of the box body (2?) and being configured to discharge lubricating oil inside the box body (2?), wherein the oil return port (4?) comprises an oil baffle plate (5?), an oil return through hole (6?), and a cambered transition portion (7?), wherein the oil baffle plate (5?) and the cambered transition portion (7?) are on two opposite sides of the oil return through the oil return port (6?) and the oil baffle plate (5?) protrudes inward from the bottom wall of the box body (2?) toward inside of the box body (2?). The lubricating oil can be discharged smoothly, thereby improving the overall functionality of the reduction gearbox.

Abstract: The present disclosure relates to a substantially rectangular crosshead box formed by an integral forming process and provided with a front end surface, a rear end surface, an upper end surface, a lower end surface, and a side end surface. The crosshead box is provided with: a plurality of crosshead cavities, each extending in a longitudinal direction through the crosshead box body, and arranged in a transverse direction of the crosshead box. The crosshead box is further provided with a plurality of exhaust chambers, each running through the crosshead box in the longitudinal direction and being in communication with the corresponding crosshead cavity. The present disclosure further relates to a plunger pump provided with the above crosshead box. By integrally forming the crosshead box, the service life is improved, and operational air pressure inside the box body can be controlled, thereby improving the operating stability and service life.

Abstract: A hydraulic end and a fracturing pump. The hydraulic end includes a body and a functional device. The functional device includes at least one of a base plate, an end cover assembly, and a packing assembly, and the functional device is detachably fixedly connected to the body. The above hydraulic end can solve the problem of relatively high production costs caused by replacement of an entire hydraulic end body in case of failures such as leakage caused by wear of a packing or cracking of an end cover under a force.

Abstract: A hydraulic end and a fracturing pump. The hydraulic end includes a body and a functional device. The functional device includes at least one of a base plate, an end cover assembly, and a packing assembly, and the functional device is detachably fixedly connected to the body. The above hydraulic end can solve the problem of relatively high production costs caused by replacement of an entire hydraulic end body in case of failures such as leakage caused by wear of a packing or cracking of an end cover under a force.

Abstract: A hydraulic end and a fracturing pump. The hydraulic end includes a body and a functional device. The functional device includes at least one of a base plate, an end cover assembly, and a packing assembly, and the functional device is detachably fixedly connected to the body. The above hydraulic end can solve the problem of relatively high production costs caused by replacement of an entire hydraulic end body in case of failures such as leakage caused by wear of a packing or cracking of an end cover under a force.

Abstract: A hydraulic end and a fracturing pump. The hydraulic end includes a body and a functional device. The functional device includes at least one of a base plate, an end cover assembly, and a packing assembly, and the functional device is detachably fixedly connected to the body. The above hydraulic end can solve the problem of relatively high production costs caused by replacement of an entire hydraulic end body in case of failures such as leakage caused by wear of a packing or cracking of an end cover under a force.

Abstract: A connection system for a plunger pump device, includes: a connector, including a shaft and first and second engaging portions provided at opposite end portions of the shaft; a reduction gearbox interface including a third engaging portion; and a plunger pump device interface including a fourth engaging portion. The first engaging portion engages with the third engaging portion to form a first engaging pair, and the second engaging portion engages with the fourth engaging portion to form a second engaging pair. The first and third engaging portions are respectively internal teeth and external teeth of the first engaging pair, or are respectively external teeth and internal teeth of the first engaging pair. The second and fourth engaging portions are respectively internal teeth and external teeth of the second engaging pair, or are respectively external teeth and internal teeth of the second engaging pair.

Abstract: A split-type plunger pump includes: a first module including a reduction gearbox assembly, an input side interface thereof being connected to a power source; a second module including a crankcase assembly, an input side interface thereof being connected to an output side interface of the first module; a third module including a crosshead box assembly, an input side interface thereof being connected to an output side interface of the second module; and a fourth module including a fluid end assembly, an input side interface thereof being connected to an output side interface of the third module. The reduction gearbox assembly, the crankcase assembly, the crosshead box assembly, and the fluid end assembly are sequentially connected.

Abstract: An oil distributor includes a top surface and a bottom surface opposite to each other, and a side surface located between the top surface and the bottom surface. The top surface, the bottom surface, and the side surface form an oil distribution chamber. The top surface is provided with an oil inlet hole, which is communicated with an oil inlet pipeline in an external oil passage. The side surface is provided with at least one oil outlet, which is communicated with a lubrication pipeline. The bottom surface is disposed at a through hole of a housing of the reducer, and the bottom surface is provided with an oil distribution pipe located inside the housing of the reducer. The oil distribution pipe is provided with at least one oil spraying hole, and the oil spraying hole is communicated with an interior of the housing of the reducer.

Abstract: The present disclosure provides a power end housing for a plunger pump and a plunger pump including the power end housing. The power end housing includes: an integrated crankcase, where the crankcase includes a plurality of bearing seats and supported by support vertical plates, the support vertical plates are spaced apart in an axial direction of the bearing seats, and the crankcase includes a first reinforcing rib between every two support vertical plates, wherein an angle between a direction of a maximum resultant force on the bearing seats and an axial direction of a plunger of the plunger pump is ?max, an angle between the first reinforcing rib and the axial direction of the plunger is a first angle, and the first angle is greater than or equal to 0.8 ?max and less than or equal to 1.2 ?max.

Abstract: The present disclosure provides a power end housing for a plunger pump and a plunger pump including the power end housing. The power end housing includes: an integrated crankcase, where the crankcase includes a plurality of bearing seats and supported by support vertical plates, the support vertical plates are spaced apart in an axial direction of the bearing seats, and the crankcase includes a first reinforcing rib between every two support vertical plates, wherein an angle between a direction of a maximum resultant force on the bearing seats and an axial direction of a plunger of the plunger pump is ?max, an angle between the first reinforcing rib and the axial direction of the plunger is a first angle, and the first angle is greater than or equal to 0.8 ?max and less than or equal to 1.2 ?max.

Abstract: A fracturing pump spacer frame includes a hydraulic end connecting plate and a crosshead box connecting plate that are disposed spaced apart in parallel. The hydraulic end connecting plate and the crosshead box connecting plate are fastened by a support sleeve. The fracturing pump spacer frame further includes a leg. The hydraulic end connecting plate, the crosshead box connecting plate, the support sleeve, and the leg are integrally formed. The leg includes a first vertical supporting plate and a second vertical supporting plate that are vertically disposed and a first bottom supporting plate that is horizontally disposed. The first vertical supporting plate is located below the hydraulic end connecting plate. The second vertical supporting plate is located below the crosshead box connecting plate. Two sides of the first bottom supporting plate are respectively connected to lower ends of the first vertical supporting plate and the second vertical supporting plate.

Abstract: The present disclosure relates to a crosshead box, which is a substantially rectangular box body formed by an integral forming process and is provided with a front end surface, a rear end surface, an upper end surface, a lower end surface, and a side end surface, and the crosshead box is provided with: a plurality of crosshead cavities, each of the crosshead cavities extending in a longitudinal direction of the crosshead box and running through the box body, and the plurality of crosshead cavities being arranged in a transverse direction of the crosshead box. The crosshead box is further provided with a plurality of exhaust chambers, each of the exhaust chambers running through the crosshead box in the longitudinal direction of the crosshead box and being in communication with the corresponding crosshead cavity. The present disclosure further relates to a plunger pump provided with the crosshead box described above.

Abstract: A fracturing pump spacer frame includes a hydraulic end connecting plate and a crosshead box connecting plate that are disposed spaced apart in parallel. The hydraulic end connecting plate and the crosshead box connecting plate are fastened by a support sleeve. The fracturing pump spacer frame further includes a leg. The hydraulic end connecting plate, the crosshead box connecting plate, the support sleeve, and the leg are integrally formed. The leg includes a first vertical supporting plate and a second vertical supporting plate that are vertically disposed and a first bottom supporting plate that is horizontally disposed. The first vertical supporting plate is located below the hydraulic end connecting plate. The second vertical supporting plate is located below the crosshead box connecting plate. Two sides of the first bottom supporting plate are respectively connected to lower ends of the first vertical supporting plate and the second vertical supporting plate.

Abstract: The present application provides a detection chip assembly tool, a liquid injection apparatus and method, an electronic device, and a medium. The tool is mounted on a vacuumizing assembly, and comprises: a base mounted on a detection chip. The base is provided with a reaction cavity covering the detection chip and a fluid channel communicated with the reaction cavity, and is further provided with a liquid inlet groove structure communicated with the fluid channel and having a buffer solution injected. When the detection chip is filled with the buffer solution, the vacuumizing assembly is started to discharge air in the detection chip assembly tool, in response to the vacuumizing assembly vacuumizing, pressure relief is performed, and the buffer solution in the liquid inlet groove structure flows into the reaction cavity along the fluid channel under the action of negative pressure so as to fill the detection chip.

Abstract: The present disclosure provides a power end housing for a plunger pump and a plunger pump including the power end housing. The power end housing includes: an integrated crankcase (100), where the crankcase (100) includes a plurality of bearing seats (101) and a plurality of support vertical plates (102), the support vertical plates (102) are configured to support the bearing seats (101), the support vertical plates (102) are spaced apart in an axial direction of the bearing seats (101), and the crankcase (100) includes a first reinforcing rib (103) between every two support vertical plates (102), wherein an angle between a direction of a maximum resultant force on the bearing seats (101) and an axial direction of a plunger of the plunger pump is ?max, an angle between the first reinforcing rib (103) and the axial direction of the plunger is a first angle, and the first angle is greater than or equal to 0.8 ?max and less than or equal to 1.2 ?max.