阅读说明：本技术 液压油路系统及液压机 (Hydraulic oil circuit system and hydraulic machine ) 是由 陈国华 黎永杰 张悦 于 2020-12-25 设计创作，主要内容包括：液压油路系统及液压机,涉及液压机技术领域。液压油路系统,包括主油箱、副油箱和输油管,副油箱的位置高于主油箱,输油管首端的入油口连接副油箱,输油管末端的出油口连接主油箱,还包括导流减泡机构和搅拌消泡机构,导流减泡机构包括导流件,导流件设在输油管内并伸入主油箱,以供输油管内流动的油液附着在导流件表面并沿导流件流入主油箱,搅拌消泡机构包括搅拌叶轮,搅拌叶轮设在主油箱内并可转动以通过搅拌消除主油箱内的油液中的气泡,导流件末端连接搅拌叶轮,导流件在输油管内流动的油液的冲击下可转动,以驱动搅拌叶轮转动。本发明的液压油路系统可减少气泡的产生并通过设置搅拌消泡机构,以进一步减少油液中的气泡,从而保护油泵。(Hydraulic circuit system and hydraulic press relate to hydraulic press technical field. Hydraulic pressure oil piping system, including the main tank, bellytank and defeated oil pipe, the position of bellytank is higher than the main tank, the bellytank is connected to the hydraulic fluid inlet of defeated oil pipe head end, defeated oil pipe terminal oil-out connects the main tank, still include water conservancy diversion defoaming mechanism and stirring defoaming mechanism, water conservancy diversion defoaming mechanism includes the water conservancy diversion spare, the water conservancy diversion spare is established in the defeated oil pipe and is stretched into the main tank, for the interior fluid of flowing of defeated oil pipe is attached to the water conservancy diversion spare surface and along the water conservancy diversion spare inflow main tank, stirring defoaming mechanism includes impeller, impeller establishes in the main tank and rotatable bubble in order to eliminate the fluid in the main tank through the stirring, water conservancy diversion spare end-to-end connection impeller, the water conservancy diversion spare is rotatable under the impact of the fluid of the intraducta. The hydraulic oil circuit system can reduce the generation of bubbles and further reduce the bubbles in the oil liquid by arranging the stirring defoaming mechanism, thereby protecting the oil pump.)

1. Hydraulic pressure oil piping system, including the main tank, bellytank and defeated oil pipe, the position of bellytank is higher than the main tank, the bellytank is connected to the hydraulic fluid inlet of defeated oil pipe head end, defeated oil pipe terminal oil-out connects the main tank, characterized by, still include water conservancy diversion defoaming mechanism and stirring defoaming mechanism, water conservancy diversion defoaming mechanism includes the water conservancy diversion spare, the water conservancy diversion spare is established in the defeated oil pipe and is stretched into the main tank, with the fluid that flows in supplying the oil pipe is attached to the water conservancy diversion spare surface and along the water conservancy diversion spare inflow main tank, stirring defoaming mechanism includes impeller, impeller establishes in the main tank and rotatable bubble in order to eliminate the fluid in the main tank through the stirring, water conservancy diversion spare end-to-end connection impeller, the water conservancy diversion spare is rotatable under the impact of the fluid that flows in the.

2. The hydraulic circuit system of claim 1, wherein the impeller includes a bracket and an impeller, the impeller being movably connected to the bracket, the impeller being movable relative to the bracket to reduce drag of the oil when the impeller is activated.

3. The hydraulic circuit system according to claim 2, wherein the stirring vane is rotatable about an axis lying in a plane parallel to the horizontal plane or rotatable about an axis lying perpendicular to the horizontal plane.

4. The hydraulic circuit system as claimed in claim 3, wherein the angle at which the agitating blade is rotatable is not more than 45 degrees.

5. The hydraulic circuit system of claim 1, wherein the flow guide member includes a flow guide vane, and the flow guide vane is helical.

6. The hydraulic oil circuit system as claimed in claim 5, wherein the guide member further comprises a center post, the guide vane surrounds and is fixed to the center post, and the end of the center post is connected to the stirring impeller.

7. The hydraulic circuit system as claimed in claim 1, wherein the oil delivery pipe is provided with a narrowing section, and an inner cavity for delivering the oil in the narrowing section is gradually narrowed in a flow direction of the oil to reduce a flow velocity of the oil and to converge the oil.

8. The hydraulic circuit system of claim 7, wherein the constriction is located in the end section of the oil delivery tube and the flow guide is located in the constriction.

9. The hydraulic fluid line system as defined in claim 8, wherein the oil outlet of the oil delivery pipe is formed in a strip shape to increase an oil flow rate.

10. Hydraulic machine, characterized in that it comprises a hydraulic oil circuit system according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of hydraulic machines.

Background

The hydraulic oil circuit system of the hydraulic machine generally comprises a main oil tank and an auxiliary oil tank, wherein the auxiliary oil tank is positioned at the top of the hydraulic machine, the main oil tank is positioned at the bottom of the hydraulic machine, hydraulic oil circulates in the hydraulic oil circuit system in the working process of the hydraulic machine, and one section of the hydraulic oil flows into the main oil tank from the auxiliary oil tank through an oil conveying pipe in the circulating process.

Because the auxiliary oil tank is arranged above the main oil tank, the main oil tank is arranged below the auxiliary oil tank, and the auxiliary oil tank and the main oil tank have height difference, potential energy of oil can be converted into kinetic energy in the process that the oil flows from the auxiliary oil tank to the main oil tank through the oil conveying pipe, the flow speed of the oil can be faster and faster, and the flow speed reaches the peak when the oil flowing into the main oil tank is converged with the oil in the main oil tank. Therefore, on one hand, the oil is accelerated continuously in the flowing process of the oil conveying pipe, the oil is dispersed more and more close to the outlet at the tail end of the oil conveying pipe, and a large amount of gas is easy to mix due to the continuous acceleration of the oil, and the oil mixed with a large amount of gas flows into the main oil tank to be mixed with the oil in the main oil tank and then brings a large amount of bubbles into the oil in the main oil tank; on the other hand, the oil flows into the main oil tank from the oil conveying pipe, and the too fast flow velocity causes great impact on the oil in the main oil tank, so that a great amount of bubbles are generated in the oil in the main oil tank. After being used for a plurality of times, the generation speed of the bubbles is much higher than the natural dissipation speed, and more bubbles in the main oil tank are absorbed by the oil pump, so that abnormal sound of the oil pump is caused, and the service life of the oil pump is influenced.

Disclosure of Invention

In view of this, the invention provides a hydraulic oil circuit system and a hydraulic machine, which can reduce bubble oil mixed by oil and gas.

In order to achieve the above object, the present invention provides the following technical solutions.

1. Hydraulic pressure oil piping system, including the main tank, bellytank and defeated oil pipe, the position of bellytank is higher than the main tank, the bellytank is connected to the hydraulic fluid inlet of defeated oil pipe head end, defeated oil pipe terminal oil-out connects the main tank, still include water conservancy diversion defoaming mechanism and stirring defoaming mechanism, water conservancy diversion defoaming mechanism includes the water conservancy diversion spare, the water conservancy diversion spare is established in the defeated oil pipe and is stretched into the main tank, for the interior fluid of flowing of defeated oil pipe is attached to the water conservancy diversion spare surface and along the water conservancy diversion spare inflow main tank, stirring defoaming mechanism includes impeller, impeller establishes in the main tank and rotatable bubble in order to eliminate the fluid in the main tank through the stirring, water conservancy diversion spare end-to-end connection impeller, the water conservancy diversion spare is rotatable under the impact of the fluid of the intraducta.

According to the hydraulic oil way system, the diversion and foam reduction mechanism is arranged, so that oil can flow in the oil conveying pipe and is attached to the diversion piece, the flow speed can be reduced, the condition that the oil is dispersed can be reduced, the impact on the oil in the main oil tank can be reduced, and the generation of bubbles can be reduced. And through setting up the fluid in the stirring defoaming mechanism stirring main tank to eliminate the bubble of this kind of fluid in the main tank, further reduce the bubble in the fluid, thereby protect the oil pump, prolong the oil pump life-span.

In addition, the guide piece can rotate under the impact of oil liquid so as to drive the stirring impeller to rotate, so that a power mechanism does not need to be arranged on the stirring impeller, and the structure is simplified.

2. According to the technical scheme 1, the stirring impeller comprises a support and stirring blades, the stirring blades are movably connected with the support, and the stirring blades can move relative to the support so as to reduce resistance of oil when the stirring impeller is started.

The stirring impeller stirs oil in the oil, the oil can provide resistance for the stirring impeller, and particularly when the stirring impeller is started, larger driving force is needed due to the fact that inertia effect in movement does not exist. Stirring impeller drives through the water conservancy diversion spare, and the energy source comes from the potential energy of the fluid that flows in the oil pipe, sets up stirring vane movable, and when stirring impeller started like this, stirring vane has the action of letting after one, reduces the stress surface to reduce the resistance of fluid, let stirring impeller start more easily.

3. According to the hydraulic oil circuit system of claim 2, the stirring blade can rotate around an axis in a plane parallel to the horizontal plane, or can rotate around an axis perpendicular to the horizontal plane.

4. According to the hydraulic oil circuit system in the technical scheme 3, the rotatable angle of the stirring blade is not more than 45 degrees.

5. According to the hydraulic oil circuit system in the technical scheme 1, the flow guide piece comprises a flow guide blade which is in a spiral shape.

The spiral guide vane can enable the guide vane to be a coherent whole piece, oil liquid flows into the main oil tank along the guide piece in a coherent mode, potential energy conversion of the oil liquid can be obtained through transfer as much as possible, and larger power is provided for the stirring impeller.

6. In the hydraulic oil path system according to claim 5, the flow guide member further includes a center post, the flow guide vanes surround and are fixed to the center post, and the end of the center post is connected to the stirring impeller.

7. According to the technical scheme 1, the oil delivery pipe is provided with the narrowing section, and an inner cavity used for delivering oil in the narrowing section is gradually narrowed along the flowing direction of the oil so as to reduce the flow velocity of the oil and enable the oil to be gathered.

Set up the narrowing section, can let fluid reduce the velocity of flow in the narrowing section of flow through, owing to the space diminishes, fluid will assemble again moreover, will sneak into the bubble in the fluid and extrude, can reduce the bubble, can reduce the impact to fluid in the main tank again, the bubble that fluid produced in the reduction main tank.

8. According to the hydraulic oil circuit system in the technical scheme 7, the narrowing section is located at the tail section of the oil conveying pipe, and the flow guide piece is located in the narrowing section.

The narrowing section is positioned at the tail section of the oil conveying pipe, and the oil flows into the main oil tank after being decelerated by the narrowing section, so that the oil is prevented from flowing into the main oil tank after being accelerated again after leaving the narrowing section. The flow guide piece is positioned in the narrowing section, under the combined action of the flow guide piece and the narrowing section, the flow velocity of oil flowing into the main oil tank can be reduced to the maximum extent, and the oil is converged again in the narrowing section to fill the periphery of the flow guide piece, so that more potential energy conversion is provided for the flow guide piece, and the driving force of the flow guide piece on the stirring impeller is enhanced.

9. According to the hydraulic oil circuit system in the technical scheme 8, the oil outlet of the oil pipeline is in a strip shape so as to increase the oil outlet flow.

The strip oil outlet narrows the inner cavity of the oil delivery pipe, so that bubbles are extruded from oil, the oil outlet flow of the oil outlet is ensured, and the normal operation of the hydraulic machine is prevented from being influenced by the undersize oil flow.

10. A hydraulic machine comprises the hydraulic oil circuit system according to any one of the technical schemes 1-9.

Drawings

FIG. 1 is a schematic structural diagram of a hydraulic oil circuit system and a hydraulic machine according to the present invention;

FIG. 2 is a schematic view of the structure of a stirring impeller according to the present invention;

FIG. 3 is a schematic view showing a state where the stirring vanes and the holder are combined;

FIG. 4 is a schematic cross-sectional view of the end of an oil pipeline and a flow-guiding and foam-reducing mechanism according to the present invention;

FIG. 5 is a schematic view of the oil outlet of an oil delivery pipe according to the present invention;

description of the drawings:

a main oil tank 1; a secondary fuel tank 2; an oil delivery pipe 3 and an oil outlet 31; the flow guide and bubble reduction mechanism 4, the flow guide vanes 41 and the central column 42; stirring defoaming mechanism 5, support 51, stirring blade 52.

Detailed Description

The invention is described in detail below with reference to specific embodiments.

As shown in fig. 1, the hydraulic oil circuit system comprises a main oil tank 1, an auxiliary oil tank 2 and an oil delivery pipe 3, wherein the auxiliary oil tank 2 is higher than the main oil tank 1, an oil inlet at the head end of the oil delivery pipe 3 is connected with the auxiliary oil tank 2, an oil outlet 31 at the tail end of the oil delivery pipe 3 is connected with the main oil tank 1, the hydraulic oil circuit system further comprises a diversion defoaming mechanism 4 and a stirring defoaming mechanism 5, the diversion defoaming mechanism 4 comprises a diversion piece, the diversion piece is arranged in the oil delivery pipe 3 and extends into the main oil tank 1, so that oil flowing in the oil delivery pipe 3 is attached to the surface of the diversion piece and flows into the main oil tank 1 along the diversion piece, the stirring defoaming mechanism 5 comprises a stirring impeller, the stirring impeller is arranged in the main oil tank 1 and can rotate to eliminate bubbles in the oil in the main oil tank 1 through stirring, the tail end of the diversion piece is connected with the stirring impeller, and the. Through setting up water conservancy diversion and reducing bubble mechanism 4, can let fluid flow in defeated oil pipe 3 is attached to in the water conservancy diversion spare, can reduce the velocity of flow, also can reduce the dispersed condition of fluid, still can reduce the impact to the fluid in the main tank 1 to reduce the production of bubble. And through setting up the fluid of stirring defoaming mechanism 5 stirring in the main tank 1 to eliminate the bubble of this kind of fluid in the main tank 1, further reduce the bubble in the fluid, thereby protect the oil pump, prolong the oil pump life-span. In addition, the guide piece can rotate under the impact of oil liquid so as to drive the stirring impeller to rotate, so that a power mechanism does not need to be arranged on the stirring impeller, and the structure is simplified.

As shown in fig. 2 and 3, the stirring impeller includes a bracket 51 and a stirring blade 52, the stirring blade 52 is movably connected to the bracket 51, and the stirring blade 52 is movable relative to the bracket 51 to reduce resistance of oil when the stirring impeller is started. The stirring impeller stirs oil in the oil, the oil can provide resistance for the stirring impeller, and particularly when the stirring impeller is started, larger driving force is needed due to the fact that inertia effect in movement does not exist. Impeller drives through the water conservancy diversion spare, and the energy source comes from the potential energy of the fluid that flows in defeated oil pipe 3, sets up stirring vane 52 movable, and when impeller started like this, stirring vane 52 has the action of letting after one, reduces the stress surface to reduce the resistance of fluid, let impeller start more easily, but the rotatable angle of stirring vane 52 is no longer than 45 degrees. In fig. 2 and 3, the stirring vanes 52 are rotatable about axes lying in a plane parallel to the horizontal plane, but in other embodiments, the stirring vanes 52 may also be rotatable about axes lying perpendicular to the horizontal plane.

As shown in fig. 4, the flow guiding and bubble reducing mechanism 4 includes a flow guiding member, the flow guiding member includes a flow guiding vane 41, and the flow guiding vane 41 is spiral. The spiral guide vane 41 can lead the guide vane 41 to be a continuous whole piece, and lead the oil to flow into the main oil tank 1 along the guide piece, and in this way, the potential energy conversion of the oil can be obtained by transferring as much as possible, and more power is provided for the stirring impeller. The flow guide piece also comprises a central column 42, the flow guide vanes 41 surround the central column 42 and are fixed with the central column 42, and the tail end of the central column 42 is connected with a stirring impeller. The oil delivery pipe 3 is provided with a narrowing section, and an inner cavity used for delivering oil in the narrowing section is gradually narrowed along the flowing direction of the oil so as to reduce the flow velocity of the oil and lead the oil to be gathered. Set up the narrowing section, can let fluid reduce the velocity of flow in the narrowing section of flow through, owing to the space diminishes, fluid will assemble again moreover, will sneak into the bubble in the fluid and extrude, can reduce the bubble, can reduce the impact to fluid in the main tank 1 again, the bubble that fluid produced in the main tank 1 of reduction. The narrowing section is positioned at the tail section of the oil pipeline 3, and the flow guide piece is positioned in the narrowing section. The narrowing section is positioned at the tail section of the oil conveying pipe 3, and oil flows into the main oil tank 1 after being decelerated by the narrowing section, so that the oil is prevented from flowing into the main oil tank 1 after being accelerated again after leaving the narrowing section. The flow guide piece is positioned in the narrowing section, under the combined action of the flow guide piece and the narrowing section, the flow velocity of oil flowing into the main oil tank 1 can be reduced to the maximum extent, and the oil is converged again in the narrowing section to fill the periphery of the flow guide piece, so that more potential energy conversion is provided for the flow guide piece, and the driving force of the flow guide piece on the stirring impeller is enhanced.

As shown in fig. 5, the oil outlet 31 of the oil delivery pipe 3 is in the shape of a strip to increase the oil flow rate. The strip-shaped oil outlet 31 narrows the inner cavity of the oil delivery pipe 3, so that bubbles are extruded from oil, the oil outlet flow of the oil outlet 31 is ensured, and the normal operation of the hydraulic machine is prevented from being influenced by too small oil flow.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.