TH51284A - Pump device - Google Patents

Abstract

DC60 (19/09/44) In the pump housing of the pumping equipment, the pump shaft is rotatably supported by two bearings and connected to the pump unit. The rotating drive part is attached to one end of the pump shaft protruding from the top of the housing. The rotating drive part consists of a convex part attached to one end of the pump shaft protruding from the housing and a rim integrated with the convex part. The rim is protruding from the convex part to cover at least a portion of the top of the housing. A groove for receiving the drive belt is created on the outer perimeter of the rim. A concentric plane across the width of the groove is placed between the centers of the two bearings in the groove section. Gear teeth compatible with the drive gear may be created on the outer perimeter of the rim as required. The pump unit is of the balanced impeller type. In the pump housing of the pumping equipment, the pump shaft is rotatably supported by two bearings and connected to the pump unit. The rotating drive part is attached to one end of the pump shaft protruding from the top of the housing. The rotating drive part consists of a convex part attached to one end of the pump shaft protruding from the housing and a rim integrated with the convex part. The edge is carved away from the convex part to cover at least part of the top end of the body. The groove for the drive belt is created on the outer perimeter of the edge. A concentric plane across the width of the groove is placed between the centers of the two bearings in the groove. Gear teeth compatible with the drive gear may be created on the outer perimeter of the edge as required. The pump unit will be a balanced impeller type.

Claims (7)

1. The pumping unit, which is driven by a driving force from a driving source, consists of: the casing; the bearing section arranged inside the apex of the casing; the pump shaft, which is supported rotatably by the bearing section, with one end of the pump shaft protruding from the apex of the casing; the pump unit itself, which is placed inside the casing and operated by the rotation of the pump shaft; and the driving element, which is attached to one end of the pump shaft protruding from the casing and used to transfer the driving force from the driving source to the pump shaft. The driving element consists of a drive inlet, from which the driving force is transferred from the driving source to the center of the bearing section in an axial direction to the pump shaft, which coincides with the center of the drive inlet. 2. The pumping device according to claim 1 is of the type in which the driving element consists of a convex part attached to one end of the pump shaft protruding from the body, and a rim formed in conjunction with the convex part, where the rim differs from the convex part to cover at least a portion of the apex of the body; and the drive input is formed on the outer perimeter of the rim. 3. The pump device according to claim 2 is of the type in which the bearing section consists of two bearings placed side-by-side; and the center of the thrust input in the axial direction of the pump shaft is placed between the centers of the two bearings in the axial direction of the pump shaft. 4. The pump device according to claim 3 is of the type in which the drive input is a grooved section which is compatible with the drive belt that extends between and wraps around the grooved section and the drive source pulley; and the center of the grooved section in the axial direction of the pump shaft is placed between the centers of the two bearings in the axial direction of the pump shaft. 5. The pump device according to claim 3 is of the type in which the drive transmission is a gear that is compatible with the drive gear of the drive source; and the center of the gear in the axial direction of the pump shaft is between the centers of the two bearings in the axial direction of the pump shaft. 6. The pumping equipment under claim 1 is of the type where the pumping unit is an impeller pump. 7. The pumping device according to claim 6 is of the type in which the pumping unit is a balanced vane pump with the suction group symmetrically positioned relative to the pump shaft and the discharge group symmetrically positioned relative to the pump shaft.