CN206681966U - A kind of new inclined shaft pump - Google Patents

Abstract

The utility model discloses a kind of new inclined shaft pump, including cylinder body and plunger body, the plunger body is located in the cylinder body, the excircle of the plunger body is provided with multiple outwardly curved flanges, length direction of the curved flanges along the plunger body is spaced apart, and inner surface of the periphery of the curved flanges also with the cylinder body is engaged, wherein, the outer surface of the plunger body is also covered with molybdenum disulfide lubricating layer.The utility model avoid it is stuck caused by not parallel between plunger body and cylinder body, meanwhile, on the one hand prevent the adhesion of plunger body and cylinder bore, extend the service life of cylinder body and plunger, reduce cost and increase economic efficiency；On the other hand, energy loss is reduced, improves mechanical efficiency and energy utilization rate, saves the energy, it is economic and environment-friendly.

Description

A New Type of Inclined Axis Pump

technical field

The utility model relates to the technical field of inclined-axis pumps, in particular to a novel inclined-axis pump.

Background technique

The plunger of the existing inclined-axis pump is generally made of alloy steel, while the base material of the cylinder body is carbon steel. When the two move relatively at high speed, they will stick to each other due to friction, thus destroying the contact between the plunger body and the cylinder hole. Moreover, when the plunger moves relatively in the cylinder, it will be stuck due to the non-parallel alignment of the plunger and the cylinder hole, which seriously affects the normal use of the hydraulic pump.

Utility model content

The utility model mainly solves the technical problems existing in the prior art, thereby providing a novel inclined-axis pump with small friction and no jamming.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions:

The new inclined axis pump provided by the utility model includes a cylinder body and a plunger body, the plunger body is installed in the cylinder body, and a plurality of protruding outwards are arranged on the outer circumference of the plunger body. arc-shaped flanges, the arc-shaped flanges are distributed at intervals along the length direction of the plunger body, and the outer circular surface of the arc-shaped flanges is also matched with the inner surface of the cylinder body, wherein the The outer surface of the plunger body is also covered with a molybdenum disulfide lubricating layer.

Furthermore, an inwardly recessed oil collection groove is provided at the middle position of the plunger body, and the cross-sectional shape of the oil collection groove is arc-shaped.

Further, a plurality of arc-shaped flanges on both sides of the oil collecting groove are respectively distributed at equal intervals along the length direction of the plunger body.

Further, the outer surface of the cylinder body is also provided with a nitriding protection layer.

Further, the radius of curvature of the arc of the arc-shaped flange is 0.2-0.4 mm.

The beneficial effect of the utility model is that: by providing a plurality of outwardly protruding arc-shaped flanges on the outer circumference of the plunger body, the outer circular surface of the arc-shaped flanges is matched with the inner surface of the cylinder body, so that The plunger body can move relatively smoothly in the cylinder body, avoiding the jamming caused by the non-parallel between the plunger body and the cylinder body. At the same time, molybdenum disulfide is a good non-oil solid lubricant with high and low temperature resistance friction coefficient Low-level characteristics, using molybdenum disulfide to coat the surface of the plunger body, can enhance the self-lubrication between the plunger body and the cylinder body, reduce the friction coefficient of the contact surface between the two, and reduce the friction force and friction. Thermal energy, which not only prevents the adhesion between the plunger body and the cylinder body, prolongs the service life of the cylinder body and the plunger body, reduces costs and improves economic benefits; on the other hand, it reduces energy loss, improves mechanical efficiency and energy utilization, and saves Energy, economy and environmental protection.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the novel inclined-axis pump of the utility model;

Fig. 2 is a schematic structural view of the plunger body of the new inclined-axis pump of the present invention.

detailed description

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, so as to make a clearer definition of the protection scope of the utility model.

Referring to Fig. 1-2, the new inclined axis pump of the present utility model includes a cylinder body 1 and a plunger body 2, the plunger body 2 is installed in the cylinder body 1, and the outer circumference of the plunger body 2 is provided with multiple An outwardly protruding arc-shaped flange 3, the arc-shaped flange 3 is distributed at intervals along the length direction of the plunger body 2, and the outer circular surface of the arc-shaped flange 3 is also matched with the inner surface of the cylinder body 1, wherein , The outer surface of the plunger body 2 is also covered with a molybdenum disulfide lubricating layer.

The utility model is provided with a plurality of outwardly protruding arc-shaped flanges 3 on the outer circumference of the plunger body 2, and uses the outer circular surface of the arc-shaped flange 3 to cooperate with the inner surface of the cylinder body 1 to make the column The plug body 2 can move relatively smoothly in the cylinder body 1, avoiding the jamming caused by the non-parallel between the plunger body 2 and the cylinder body 1. At the same time, molybdenum disulfide is a good non-oil solid lubricant with high Low temperature friction coefficient and other characteristics, using molybdenum disulfide to coat the surface of the plunger body 2 can enhance the self-lubrication between the plunger body 2 and the cylinder body 1, reduce the friction coefficient of the contact surface between the two, and reduce the The frictional force and the heat energy generated by friction not only prevent the adhesion between the plunger body 2 and the cylinder body 1, prolong the service life of the cylinder body 1 and the plunger body 2, reduce costs and improve economic benefits; on the other hand, reduce energy loss , improve mechanical efficiency and energy utilization, save energy, and be economical and environmentally friendly.

Preferably, in order to further reduce the friction between the plunger body 2 and the cylinder body 1, an inwardly recessed oil collection groove 4 is also provided at the middle position of the plunger body 2. In this embodiment, the oil collection groove 4 can be A small amount of lubricating oil is placed in 4, and when the plunger body 2 moves at a high speed relative to the cylinder body 1, the lubricating oil can lubricate the plunger body 2 and the cylinder body 1. Wherein, the cross-sectional shape of the oil collecting groove 4 is arc-shaped, which can increase the oil output efficiency of the lubricating oil and improve the lubricating effect.

Preferably, a plurality of arc-shaped flanges 3 on both sides of the oil collecting groove 4 are respectively distributed at equal intervals along the length direction of the plunger body 2 . The lubricating oil in the oil collecting groove 4 can evenly lubricate the arc-shaped flanges 3 on both sides when the plunger body 2 moves back and forth, thereby reducing the friction between the arc-shaped flanges 3 and the inner wall of the cylinder body 1 .

And, in order to increase the service life of the cylinder 1, a nitriding protection layer 5 is provided on the outer surface of the cylinder 1.

In the utility model, if the radius of curvature of the arc of the arc-shaped flange 3 is too large, the wear of the arc-shaped flange 3 will be accelerated, and if the radius of curvature is too small, the effect of preventing jamming will not be achieved. The radius of curvature of the arc of the arc-shaped flange 3 is preferably 0.2-0.4mm.

The above are only specific implementations of the present utility model, but the protection scope of the present utility model is not limited thereto, and any changes or replacements that do not go through creative labor should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be determined by the protection scope defined in the claims.

Claims (3)

1. A novel inclined-axis pump, comprising a cylinder body and a plunger body, the plunger body is penetrated in the cylinder body, and it is characterized in that, the outer circumference of the plunger body is provided with a plurality of outward Protruding arc-shaped flanges, the arc-shaped flanges are distributed at intervals along the length direction of the plunger body, and the outer circular surface of the arc-shaped flanges is also matched with the inner surface of the cylinder body, wherein , the outer surface of the plunger body is also covered with a molybdenum disulfide lubricating layer, and the middle position of the plunger body is also provided with an inwardly recessed oil collection groove, and the cross-sectional shape of the oil collection groove is arc-shaped, so A plurality of arc-shaped flanges on both sides of the oil collecting groove are respectively distributed at equal intervals along the length direction of the plunger body. 2. The novel inclined-axis pump according to claim 1, characterized in that, the outer surface of the cylinder body is also provided with a nitriding protective layer. 3. The novel inclined-axis pump according to claim 1, characterized in that, the radius of curvature of the arc of the arc-shaped flange is 0.2-0.4mm.