CN201851337U

CN201851337U - Novel rotor of radial plunger pump

Info

Publication number: CN201851337U
Application number: CN201020561821XU
Authority: CN
Inventors: 董桂敏
Original assignee: TIANJIN ZEHUAYUAN PUMP TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: TIANJIN ZEHUAYUAN PUMP TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2010-10-15
Filing date: 2010-10-15
Publication date: 2011-06-01
Anticipated expiration: 2020-10-15

Abstract

The utility model relates to a novel rotor of a radial plunger pump, which comprises a pump cover, a pump body, a valve body, a valve core, a plunger, large and small control plungers, large and small slide blocks, a connecting rod, a stator, a rotor, a transmission shaft, a pintle, a coupling and a return ring, wherein the rotor is provided with a plurality of uniform plunger holes along the radial direction, the end surface of the rotor is provided with a boss, the center of the rotor is provided with an inner hole, the plunger and the connecting rod are connected and arranged in the plunger holes of the rotor, and the rotor is arranged on the pintle. With a smaller structure and particularly the special surface treatment of the inner hole of the rotor, the rotor has small sliding friction, small generated heat and small corresponding energy consumption, and is suitable for the radial plunger pump.

Description

The novel rotor of radial plunger pump

Technical field

The utility model belongs to hydraulicdriven dynamical element, particularly a kind of novel rotor of radial plunger pump.

Background technique

At present, both at home and abroad the oil hydraulic pump overwhelming majority that uses of high-pressure high flux hydraulic power system is axial piston pump, and its life-span is short, volume is big, noise is big, seepage is big, fragile; And radial plunger pump becomes global problem because of pintle and the easy seize of rotor.What traditional axial pump used is fixed axial arrangement form, and during work, because of axial arrangement is big, plunger stroke is big, sliding friction is big, it is big to produce heat, corresponding energy consumption is bigger, inefficiency.

Summary of the invention

Problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of novel rotor of radial plunger pump is provided, and adopts than minor structure, and sliding friction is little, the generation heat is little, and corresponding energy consumption is little, can be used for radial plunger pump.

The utility model solves its technical problem and takes following technological scheme to realize:

The novel rotor of a kind of radial plunger pump that provides according to the utility model, comprise pump cover 1, the pump housing 2, valve body 3, spool 4, plunger 5,

size control plunger

6,7, big small slide block 8,9, connecting rod 10, stator 11, rotor 12, transmission shaft 13, pintle 14, shaft coupling 15 and backhaul ring 16, described rotor 12 radially has uniform some plunger holes 17, end face has boss 18, there is endoporus 19 at the center, plunger links to each other with connecting rod and packs in the plunger hole of rotor, and rotor is contained on the pintle.

The utility model compared with prior art has significant advantage and beneficial effect:

Because model utility adopts structure less, particularly the rotor inner hole special surface is handled, and sliding friction is little, the generation heat is little, and corresponding energy consumption is little.

Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Description of drawings

Fig. 1 is a sectional structure schematic representation of the present utility model;

Fig. 2 is the left-hand sectional structure schematic representation of Fig. 1;

Fig. 3 is a rotor sectional structure schematic representation of the present utility model;

Fig. 4 is a rotor of the present utility model left side TV structure schematic representation;

Wherein: 1, pump cover 2, the pump housing 3, valve body 4, spool 5, plunger 6, control plunger 7, little control plunger 8, big slide block 9, small slide block 10, connecting rod 11, stator 12, rotor 13, transmission shaft 14, pintle 15, shaft coupling 16, backhaul ring 17, plunger hole 18, boss 19, endoporus greatly

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof that foundation the utility model is provided, describe in detail as after.

The novel rotor of a kind of radial plunger pump shown in Fig. 1～4, comprise pump cover 1, the pump housing 2, valve body 3, spool 4, plunger 5,

size control plunger

6,7, big small slide block 8,9, connecting rod 10, stator 11, rotor 12, transmission shaft 13, pintle 14, shaft coupling 15 and backhaul ring 16, pump cover 1 is connected with the pump housing 2 usefulness screws 20, spool 4 is packed in the center hole of valve body 3,

size control plunger

6,7 be contained in respectively in the big or small plunger hole of the pump housing 2 and with big small slide block 8,9 spheres join, big small slide block 8,9 another cambered surface and stator join, plunger 5 links to each other with connecting rod 10 and packs in the plunger hole of rotor 12, connecting rod 10 outer arced surface and stator 11 form friction pair, intrados and backhaul ring 16 form friction pair, rotor 12 is contained on the pintle 14, at transmission shaft 13, shaft coupling 15 drives high speed rotating down, utilizes the eccentric high pressure that produces.Described rotor 12 radially has uniform some plunger holes 17, and end face has boss 18, and there is endoporus 19 at the center, and plunger links to each other with connecting rod and packs in the plunger hole of rotor, and rotor is contained on the pintle.Bore area scribbles special material.

Working principle:

During work, when rotor rotated, hydraulic oil entered the pump housing from inlet, and the low pressure assignment hole on pintle sucks in the rotor plunger hole, at this moment, the ascending oil-absorbing process of finishing of the stroke of rotor upper plug and plunger hole, when the stroke of rotor upper plug and plunger hole is descending, extruding hydraulic oil and form high pressure oil, when rotor high-speed turns round, produce oil film between rotor and pintle, particularly rotor inner hole takes special surface to handle, thereby has avoided rotor and pintle asphyxia by external pressure on the chest and abdomen or seize.

Claims

1. the novel rotor of a radial plunger pump, comprise pump cover (1), the pump housing (2), valve body (3), spool (4), plunger (5), size control plunger (6,7), big small slide block (8,9), connecting rod (10), stator (11), rotor (12), transmission shaft (13), pintle (14), shaft coupling (15) and backhaul ring (16), it is characterized in that: described rotor (12) radially has uniform some plunger holes (17), end face has boss (18), there is endoporus (19) at the center, plunger links to each other with connecting rod and packs in the plunger hole of rotor, and rotor is contained on the pintle.