SU907293A1

SU907293A1 - Radial piston pump

Info

Publication number: SU907293A1
Application number: SU802943803A
Authority: SU
Inventors: Валентин Петрович Олифир; Арон Рувимович Агранат; Владимир Антонович Юргилевич; Геннадий Григорьевич Петухов; Александр Александрович Мельниченко
Original assignee: Горловский Ордена Трудового Красного Знамени Машиностроительный Завод Им. С.М.Кирова
Priority date: 1980-06-24
Filing date: 1980-06-24
Publication date: 1982-02-23

Description

II

Изобретение относитс к насосостроению , в частности к радиальнопоршневым насосам.The invention relates to a pump engineering, in particular, to radial piston pumps.

Известен радиально-поршневой насос , содержащий цапфенный распределитель , охватывающий его с образованием зазора блок цилиндров и приводной вал, св занные между собой дл совместного вращени муфтой, включающей две полумуфты с радиапьными пазами, установленные соответственно на приводном валу и блоке цилиндров, и сухари, вход 1цие в указанные пазы 1.A radial piston pump is known that contains a trunnion distributor, which surrounds it with the formation of a gap between the cylinder block and the drive shaft, interconnected for joint rotation by a coupling comprising two coupling halves with radial slots mounted respectively on the drive shaft and the cylinder block, and crackers, the inlet 1cc in the specified grooves 1.

Однако известный насос HiMeeT недостаточную долговечность из-за выброса утечек распределител через торцовые и радиальные зазоры муфты, в результате чего трущиес поверхности муфты из-за недостатка смазки интенсивно изнашиваютс .However, the well-known HiMeeT pump lacks durability due to the release of leakage of the distributor through the face and radial clearances of the coupling, as a result of which the rubbing surfaces of the coupling due to lack of lubrication wear out intensively.

Цель изобретени - повышение долговечности насоса путем обеспечени принудительной смазки трущихс поверхностей муфты.The purpose of the invention is to increase the durability of the pump by ensuring the lubrication of the rubbing surfaces of the coupling.

Эта цель достигаетс тем, что полумуфта приводного вала установлена на последнем подвижно в осевом направлении, подпружинена относительно его и охватывает полумуфту, закрепленную на блоке цилиндров с образованием в совокупности с сухар ми камеры переменного объема, сообщенной с зазором цапфенного распределител .This goal is achieved by the fact that the half-coupling of the drive shaft is mounted on the latter movably in the axial direction, is spring-loaded relative to it and covers the coupling half fixed to the cylinder block with the formation of a variable volume chamber connected with the clearance of the trunnion distributor.

На фиг. I изображен радиальнопоршневой насос, продольный разрез , на фиг. 2 - сечение А-А на фиг. 1.FIG. I shows a radial piston pump, longitudinal section; FIG. 2 is a section A-A in FIG. one.

Claims

A radial piston pump contains a trunnion valve 1, which encloses it to form a gap, a cylinder block 2 and a drive shaft 3 connected to each other for joint rotation by a coupling including two coupling halves 4 and 5. The coupling half 4 is installed on the cylinder block 3 2 has pairs perpendicular radial grooves 6, into which the crackers 7 enter. Iolumufta 5 installed with the help of slots on the drive shaft 3 movably in the axial direction is spring-loaded relative to its spring 8 and covers the coupling half 4 mounted on the cylinder block of schrs 2 with In conjunction with the crackers 7 of the variable volume chamber 9, connected to the clearance of the trunnion distributor 1. The internal cavity 10 of the housing AND is connected to the atmosphere by the air nozzle 12 and the drainage holes 13 13. Two crackers 7 are fixed on the coupling half 5 of the drive shaft, and two other on the cylinder block

2. Radial piston pump works as follows. When the pump is operated, the variable volume chamber 9 is filled with working fluid leakage through the clearance of the distributor distributor 1. The working fluid in chamber 9 is choked across the gaps between the radial grooves 6 and the breadcrumbs 7, providing lubrication of the friction pairs in the coupling and heat removal from them. In the event of an increase in overpressure to measure 9, half-coupling 5 compresses the spring 8 and moves in the axial direction towards the drive shaft 3, bypassing excess working fluid into the cavity 10 of the casing P, the drainage is discharged through the drainage holes 13, thus providing a lubricant Coupling friction couples and thereby increasing pump durability. The invention The radial piston pump comprising a trunnion valve, covering it with the formation of a gap between the cylinder block and the drive shaft, connected to each other for joint rotation, including two coupling halves with radial grooves, mounted respectively on the drive shaft and the cylinder block, and crackers, included in the indicated grooves, characterized by the fact that, in order to maintain the durability of the pump by ensuring the lubrication of the sliding surfaces of the coupling, the coupling half of the drive shaft is mounted on the The last axially movable axially is spring-loaded relative to it and covers the half-coupling fixed on the cylinder block with the formation, in combination with crackers, of a variable-volume chamber communicated with the clearance of the trunnion distributor. Sources of information taken into account during the examination 1. USSR Author's Certificate number 189314, cl. F 04 B / 10, 1964.

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