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.