CN114704511B - Hydraulic oil tank and hydraulic system - Google Patents
Hydraulic oil tank and hydraulic system Download PDFInfo
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- CN114704511B CN114704511B CN202210156304.1A CN202210156304A CN114704511B CN 114704511 B CN114704511 B CN 114704511B CN 202210156304 A CN202210156304 A CN 202210156304A CN 114704511 B CN114704511 B CN 114704511B
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- oil
- barrel
- barrel body
- heat
- annular cavity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model relates to a hydraulic tank and hydraulic system, wherein, the hydraulic tank includes fluid storage assembly and radiator unit, the fluid storage assembly includes the oil inlet pipe, the staving structure and the oil outlet pipe, the staving structure has a confined annular chamber, the oil inlet pipe is used for connecting the oil return line and the staving structure of the hydraulic system, the oil outlet pipe is used for connecting the oil supply line and the annular chamber of the hydraulic system, the inner peripheral wall of the annular chamber is equipped with the guide plate that rises spirally along the inner peripheral wall of the annular chamber; the radiating assembly comprises a plurality of heat pipes, the plurality of heat pipes are distributed at intervals along the circumferential direction of the annular cavity, the extending direction of the heat pipes is consistent with the axial direction of the barrel structure, one ends of the heat pipes are connected to the bottom wall of the annular cavity, and the other ends of the heat pipes penetrate through the guide plate and extend out of the barrel structure. The hydraulic oil tank disclosed has the advantages of good heat dissipation effect, compact structure and higher stability of a hydraulic system.
Description
Technical Field
The disclosure relates to the technical field of mechanical equipment, in particular to a hydraulic oil tank and a hydraulic system.
Background
The hydraulic system is an important system module in mechanical equipment, however, the stability of the hydraulic system is closely related to the temperature of the internal hydraulic oil.
Generally, a hydraulic system includes a hydraulic oil tank and a hydraulic oil cooler, the hydraulic oil tank is used for storing hydraulic oil, and the hydraulic oil cooler is used for cooling the hydraulic oil in the hydraulic oil tank, wherein most of the common hydraulic oil coolers are air-cooled hydraulic oil coolers or water-cooled hydraulic oil coolers.
Therefore, in the hydraulic system, the integration level of the hydraulic oil tank and the hydraulic oil cooler is low, and the cooling capacity of the hydraulic oil cooler is reduced along with the increase of the service time, so that the stability of the hydraulic system is low.
Disclosure of Invention
In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a hydraulic oil tank and a hydraulic system, which have a compact overall structure, a good cooling effect and durability, and a high stability of the hydraulic system.
On one hand, the hydraulic oil tank comprises an oil storage assembly and a heat dissipation assembly, wherein the oil storage assembly comprises an oil inlet pipe, a barrel structure and an oil outlet pipe, the barrel structure is provided with a closed annular cavity, the oil inlet pipe is used for communicating an oil return pipeline and the barrel structure of a hydraulic system, the oil outlet pipe is used for communicating an oil supply pipeline and the annular cavity of the hydraulic system, and a guide plate which spirally rises along the inner peripheral wall of the annular cavity is arranged on the inner peripheral wall of the annular cavity; the radiating assembly comprises a plurality of heat pipes, the plurality of heat pipes are distributed at intervals along the circumferential direction of the annular cavity, the extending direction of the heat pipes is consistent with the axial direction of the barrel structure, one ends of the heat pipes are connected to the bottom wall of the annular cavity, and the other ends of the heat pipes penetrate through the guide plate and extend out of the barrel structure.
In the hydraulic oil tank that this disclosure provided, the guide plate closely laminates with the internal perisporium and the periphery wall of annular chamber.
In the hydraulic oil tank provided by the disclosure, the heat dissipation assembly further comprises a plurality of fins, the plurality of fins are arranged on one side of the barrel structure along the axial direction of the barrel structure, the plurality of fins are divided into a plurality of fin groups distributed at intervals along the circumferential direction of the barrel structure, each fin group comprises a plurality of fins distributed at intervals along the axial direction of the barrel structure, and the extending direction of each fin is consistent with the circumferential direction of the barrel structure; the fin groups are arranged corresponding to the heat pipes, and each fin is provided with a through hole through which the heat supply pipe penetrates, so that the heat pipes penetrate through the corresponding fin groups in the axial direction of the barrel body structure.
In the hydraulic oil tank provided by the disclosure, the heat dissipation assembly further comprises a fan structure and an air guide structure, wherein the fan structure and the barrel structure are oppositely distributed on two sides of the plurality of fins along the axial direction of the barrel structure; the one end and the staving structure of wind-guiding structure can be dismantled and be connected, and wind-guiding structure's the other end can be dismantled with fan structure and be connected, and wind-guiding structure includes a plurality of aviation baffles along staving structure's circumference interval distribution, and the aviation baffle is located between two adjacent fin groups.
In the hydraulic oil tank provided by the disclosure, the heat dissipation assembly further comprises a partition plate, and the partition plate is located between the barrel structure and the plurality of fins in the axial direction of the barrel structure.
In the hydraulic oil tank that this disclosure provided, the staving structure includes the interior staving and the outer staving that communicate each other, and outer staving coaxial-sleeve establishes outside the interior staving, forms the annular chamber between outer staving and the interior staving, and the lateral wall of interior staving forms the internal perisporium of annular chamber, and the interior lateral wall of outer staving forms the periphery wall of annular chamber, and the partial structure of outer internal diapire of bucket forms the diapire of annular chamber.
In the hydraulic oil tank that this disclosure provided, seted up on the lateral wall of inner barrel body and switched on the breach, switch on the breach and radially run through the lateral wall of inner barrel body including the staving, switch on the inner chamber and the annular chamber of breach intercommunication inner barrel body.
In the hydraulic oil tank provided by the disclosure, the conduction notch is located on the side wall of the inner barrel body and close to one side of the bottom of the inner barrel body.
In the hydraulic oil tank provided by the disclosure, the barrel structure further comprises a filtering piece which is arranged in the inner cavity of the inner barrel, so as to form a cavity between the filter element and the inner barrel body, the oil inlet pipe is used for communicating the oil return pipeline with the filtering piece; a plurality of oil leak holes are formed in the filtering piece, and the oil leak holes are communicated with the inner cavity and the cavity of the filtering piece.
In another aspect, the present disclosure provides a hydraulic system including the above hydraulic oil tank.
In the hydraulic oil tank and the hydraulic system provided by the disclosure, the hydraulic oil tank comprises an oil storage assembly and a heat dissipation assembly, the oil storage assembly comprises an oil inlet pipe, a barrel structure and an oil outlet pipe, the barrel structure is provided with a closed annular cavity, the oil inlet pipe is used for communicating an oil return pipeline and the barrel structure of the hydraulic system, the oil outlet pipe is used for communicating an oil supply pipeline and the annular cavity of the hydraulic system, and a guide plate which spirally rises along the inner peripheral wall of the annular cavity is arranged on the inner peripheral wall of the annular cavity; the radiating assembly comprises a plurality of heat pipes, the plurality of heat pipes are distributed at intervals along the circumferential direction of the annular cavity, the extending direction of the heat pipes is consistent with the axial direction of the barrel structure, one ends of the heat pipes are connected to the bottom wall of the annular cavity, and the other ends of the heat pipes penetrate through the guide plate and extend out of the barrel structure. Like this, the fluid that gets into in the staving structure can flow along spiral helicine guide plate, and at the in-process that flows, on the heat transfer of fluid self reaches the heat pipe, the working medium evaporation in the heat pipe to the other end of heat pipe is transmitted to the state of steam, outside with heat transfer to the staving structure, in order to accomplish the cooling heat dissipation to hydraulic oil. The hydraulic oil tank provided by the disclosure has good heat dissipation effect and compact structure, therefore, the hydraulic system provided by the disclosure has stronger stability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described, it will be apparent to those of ordinary skill in the art that other figures can be derived from these figures without inventive exercise.
FIG. 1 is a drawing of the present disclosure examples provide a schematic three-dimensional structure diagram of the hydraulic oil tank;
fig. 2a is a schematic perspective view of an oil storage assembly in a hydraulic oil tank according to an embodiment of the present disclosure;
FIG. 2b isbase:Sub>A view taken along line A of FIG. 2base:Sub>A a sectional view in the A direction;
FIG. 3 is a hydraulic pressure supply according to an embodiment of the disclosure a schematic perspective structure of a partial structure of the oil tank;
fig. 4 is a schematic perspective structure diagram of an inner barrel body in a hydraulic oil tank according to an embodiment of the disclosure;
fig. 5 is a schematic perspective view of a filter element in a hydraulic oil tank according to an embodiment of the disclosure;
fig. 6 is a schematic perspective view of another partial structure of a hydraulic oil tank provided by the embodiment of the disclosure;
fig. 7 is a schematic perspective view of a wind guide structure in a hydraulic oil tank according to an embodiment of the present disclosure;
fig. 8 is a schematic perspective view of another partial structure of a hydraulic oil tank according to an embodiment of the disclosure.
Wherein, 1-oil liquid storage component; 2-a heat dissipation assembly;
10-a hydraulic oil tank; 11-an oil inlet pipe; 12-barrel structure; 13-an oil outlet pipe; 21-a heat pipe; 22-a fin; 23-a fan structure; 24-a wind guide structure; 25-a separator;
121-ring cavity; 122-a baffle; 123-inner barrel body; 124-outer barrel body; 125-filter element; 126-a cavity; 221-a third circular aperture; 22 a-fin set; 231-a fan; 232-fan shell; 241-frame body; 242-air deflector; 251-a fourth circular aperture;
1221-a first circular aperture; 1231-a first barrel portion; 1232-end cap; 1233 — a first opening; 1234-a second circular aperture; 1235-mounting holes; 1236-a second threaded hole; 1237-conduction gap; 1238 — first connecting boss; 1239-second connection hole; 1241-a second tub part; 1242 — second opening; 1251-a third barrel portion; 1252-cover plate; 1253-a third opening; 1254-first threaded hole; 1255-oil leakage hole; 2321-third connecting hole; 2411-a first annular frame body; 2412-a second annular frame body; 2413-a first connection hole; 2414-a second connecting projection; 2415-fourth connecting hole.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
The hydraulic system is an important system module in mechanical equipment, however, the stability of the hydraulic system is closely related to the temperature of the internal hydraulic oil. High-end removal equipment field has proposed the design requirement of compactification lightweight to hydraulic system and component, and the application of light non-metallic material leads to the heat in time to be transferred to the oil tank surface from the oil tank, and the oil tank design of compactification has reduced the heat radiating area of oil tank self, brings the problem that the heat-sinking capability worsens, consequently, in order to make hydraulic system can the steady operation, then need the hydraulic oil cooler to have better cooling and radiating effect.
Common hydraulic oil coolers mainly include an air-cooled cooler and a water-cooled cooler. The air-cooled cooler is arranged on the oil return pipeline, air is used as a cooling medium to exchange heat with high-temperature oil liquid through the side wall of the cooler to cool the hydraulic oil, the oil liquid flowing through the cooler is not filtered and has more impurities, and the cooling capacity of the cooler is reduced and even the cooler is blocked after long-term use; the water-cooled cooler generally needs an additional cooling water heat dissipation system, and common water-cooled coolers include a coil cooler, a multi-tube cooler and a fin cooler, wherein the coil cooler needs to arrange a cooling pipeline in an oil tank, needs to occupy a large oil tank space and has low heat transfer efficiency; multitubular cooler and finned cooler need additionally dispose one set of water oil heat transfer device, and the integrated nature is poor, and the incrustation scale that the cooling water produced can make its heat-sinking capability reduce, if the water-cooling pipeline reveals, and the cooling water mixes with fluid, can lead to hydraulic oil rotten, seriously influences hydraulic system's normal operating.
Therefore, the hydraulic oil cooler has the problems of pipeline blockage, heat dissipation capacity reduction and the like, and can cause the defects of leakage, accelerated aging of sealing parts, overflow of dissolved gas, abnormal abrasion of elements and the like caused by impurity generation, oil deterioration and viscosity reduction in oil, so that the stable operation of a hydraulic system is influenced, and the hydraulic oil tank cannot be integrated with the cooler, and cannot meet the design requirement of compact and integrated hydraulic systems.
In order to overcome the above defects, the present embodiment provides a hydraulic oil tank and a hydraulic system, wherein the hydraulic oil tank integrates a barrel structure for storing oil and a heat dissipation assembly for dissipating heat of the oil, and particularly, a heat pipe and a spiral guide plate are adopted, so that heat of the oil is conducted to the heat pipe through the heat pipe and the guide plate, thereby facilitating evaporation of a working medium in the heat pipe, so as to transfer the heat of the oil to the outside of the barrel structure, and thus cooling and heat dissipation of the oil are completed.
The heat pipe described above is generally composed of a pipe case, a wick, and end caps, and the pipe is drawn 1.3 × (10) -1 ～10 -4 ) And filling a proper amount of working liquid after the negative pressure of Pa, and sealing after filling the liquid in the capillary porous material of the liquid absorption core tightly attached to the inner wall of the tube, wherein the selection of the working liquid is selected according to the environment and the like. Specifically, one end of the tube is an evaporation section (heating section), and the other end is a condensation section (cooling section). As one of the heat pipesWhen the end is heated, the liquid in the Mao Ren core is evaporated and vaporized, the steam flows to the other end under a slight pressure difference to release heat and condense into liquid, and the liquid flows back to the evaporation section along the porous material under the action of capillary force. The circulation is not needed, and the heat is transferred from one end of the heat pipe to the other end.
The hydraulic oil tank and the hydraulic system provided in the present embodiment will be described in detail below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 2base:Sub>A, fig. 2b and fig. 3, fig. 1 isbase:Sub>A schematic perspective view ofbase:Sub>A hydraulic oil tank according to an embodiment of the present disclosure, fig. 2base:Sub>A isbase:Sub>A schematic perspective view of an oil storage assembly in the hydraulic oil tank according to the embodiment of the present disclosure, fig. 2b isbase:Sub>A cross-sectional view of fig. 2base:Sub>A alongbase:Sub>A directionbase:Sub>A-base:Sub>A, and fig. 3 isbase:Sub>A schematic perspective view ofbase:Sub>A partial structure of the hydraulic oil tank according to the embodiment of the present disclosure.
As shown in fig. 1 to 3, the present embodiment provides a hydraulic oil tank 10, including an oil storage assembly 1 and a heat dissipation assembly 2, where the oil storage assembly 1 includes an oil inlet pipe 11, a barrel structure 12 and an oil outlet pipe 13, the barrel structure 12 has a closed annular cavity 121, the oil inlet pipe 11 is used for communicating an oil return pipeline of a hydraulic system with the barrel structure 12, the oil outlet pipe 13 is used for communicating an oil supply pipeline of the hydraulic system with the annular cavity 121, and a guide plate 122 spirally rising along an inner peripheral wall of the annular cavity 121 is disposed on an inner peripheral wall of the annular cavity 121; the heat dissipation assembly 2 includes a plurality of heat pipes 21, the plurality of heat pipes 21 are distributed at intervals along the circumferential direction of the annular cavity 121, the extending direction of the heat pipes 21 is consistent with the axial direction of the barrel structure 12, one end of the heat pipe 21 is connected to the bottom wall of the annular cavity 121, and the other end of the heat pipe 21 passes through the flow guide plate 122 and extends to the outside of the barrel structure 12. In the hydraulic oil tank 10 provided in this embodiment, the oil in the oil return pipeline enters the barrel structure 12 through the oil inlet pipe 11, the oil flows along the guide plate 122, in the process that the oil flows along the guide plate 122, the heat of the oil can be transferred to the heat pipe 21, the heat pipe 21 located in the barrel structure 12 is the evaporation section of the heat pipe 21, the evaporation section absorbs heat to evaporate the liquid inside the heat pipe 21, the steam flows to the heat pipe 21 located outside the barrel structure 12 under a small pressure difference, that is, the condensation section of the heat pipe 21, so that the oil heat in the barrel structure 12 can be transferred to the outside of the barrel structure, so as to cool the oil, and in this embodiment, because the guide plate 122 is spiral, the flow path of the oil is extended, the number of heat exchanges between the high-temperature oil and the heat pipe 21 is increased, and the heat exchange area of the evaporation section of the heat pipe 21 is fully utilized. Hydraulic oil is restricted the spiral flow in annular chamber 121, has improved the speed of scouring heat pipe 21 to fluid can produce the secondary flow of perpendicular to mainstream direction when the spiral flows, improves the velocity of flow and the production of secondary flow can strengthen heat transfer intensity, and hydraulic oil can carry out the heat transfer through the bucket wall of staving structure 12 and external environment simultaneously, thereby promotes the radiating effect. Further, because the staving structure 12 is provided with annular chamber 121 therein, consequently, make the cooling channel of hydraulic oil be a relatively independent space, avoid the low temperature fluid after the cooling to mix with uncooled high temperature fluid, thereby, make the hydraulic tank 10 that this embodiment provided have better radiating effect.
It should be noted that in order to enable oil to flow along the passage defined by the baffle 122 and the annular cavity 121, in some alternative embodiments the baffle 122 is in close proximity to the inner and outer peripheral walls of the annular cavity 121. In this way, the oil passage defined by the baffle 122 and the annular cavity 121 can be accurately defined, and the heat exchange area of the evaporation section of the heat pipe 21 can be fully utilized.
Further, the pitch of the baffle 122 and the diameter of the annular cavity 121 need to be determined in combination with the heat exchange strength and the oil return back pressure, and the selected values of the pitch of the baffle 122 and the diameter of the annular cavity 121 are not particularly limited.
Referring to fig. 2a, fig. 2b and fig. 4, fig. 4 is a schematic perspective view of an inner barrel body in a hydraulic oil tank according to an embodiment of the present disclosure. To define the closed annular cavity 121, in the present embodiment, the barrel structure 12 includes an inner barrel 123 and an outer barrel 124 which are communicated with each other, the outer barrel 124 is coaxially sleeved outside the inner barrel 123, the inner barrel 123 includes a first barrel part 1231 and an end cap 1232, the first barrel part 1231 has a first opening 1233, the outer barrel 124 includes a second barrel part 1241, the second barrel part 1241 has a second opening 1242, the end cap 1232 is covered on the first opening 1233 and the second opening 1242, the end cap 1232, an outer sidewall of the first barrel part 1231, an end face of the second barrel part 1241 and an inner sidewall of the second barrel part 1241 enclose the annular cavity 121, wherein the end cap 1232, the first barrel part 1231, the second barrel part 1241 and the flow guide plate 122 may be integrally formed, for example, the first barrel part 1231 and the second barrel part 1241 are welded on an end face of the end cap 1242, the flow guide plate 122 is welded on the outer sidewall of the first barrel part 1231, and the connection between the first barrel part 1231 and the flow guide plate 1232 is not limited.
Further, one end of the heat pipe 21 is connected to the bottom of the second barrel part 1241, the other end of the heat pipe 21 sequentially passes through the guide plate 122 and the end cover 1232 and extends out of the barrel structure 12, specifically, the guide plate 122 is provided with a first circular hole 1221 through which the multiple heat supply pipes 21 pass, the end cover 1232 is provided with a second circular hole 1234 through which the multiple heat supply pipes 21 pass, the first circular hole 1221 and the second circular hole 1234 are both arranged corresponding to the heat pipe 21, and the axial directions of the first circular hole 1234 and the second circular hole 1221 are all consistent with the axial direction of the barrel structure 12.
Referring to figures 2b and 5 of the drawings, fig. 5 is a schematic perspective view of a filter element in a hydraulic oil tank according to an embodiment of the disclosure. As shown in fig. 2b and fig. 5, in order to filter impurities in the oil, keep the oil clean to ensure the normal operation of the hydraulic system, and avoid the impurities from adhering to internal elements to reduce the heat exchange strength, in this embodiment, the barrel structure 12 further includes a filtering element 125, the filtering element 125 is disposed in the inner cavity of the inner barrel 123 to form a cavity 126 between the filtering element 125 and the inner barrel 123, and the oil inlet pipe 11 is used for communicating the oil return pipeline with the filtering element 125; specifically, the filter element 125 includes a third barrel 1251 and a cover plate 1252, the third barrel 1251 extends into the inner cavity of the inner barrel 123 after passing through a mounting hole 1235 on the end cover 1232, the third barrel 1251 has a third opening 1253, the cover plate 1252 is covered on the third opening 1253, and the cover plate 1252 and the third barrel 1251 are integrally formed, for example, the cover plate 1252 is welded on the third barrel 1251, here, there is no specific limitation on the connection manner between the cover plate 1252 and the third barrel 1251, in order to mount the filter element 125 on the inner barrel 123, in a specific embodiment of this embodiment, a first threaded hole 1254 is opened on the cover plate 1252, a second threaded hole 1236 is opened on the end cover 1232, the second threaded hole 1236 is disposed corresponding to the first threaded hole 1254, the axial direction of the second threaded hole 1236 and the axial direction of the first threaded hole 1254 are both in accordance with the axial direction of the barrel structure 12, and a threaded fastener may pass through the first threaded hole 1254 and the second threaded hole 1236 to detachably connect the cover plate 1252 and the end cover plate 1232. It should be noted that, in some other embodiments, other connection manners may be adopted between the cover plate 1252 and the end cap 1232, and the purpose of this embodiment can be achieved as long as the detachable connection between the cover plate 1252 and the end cap 1232 can be achieved. Thus, when the impurities in the filter member 125 are accumulated more, the filter element 125 may be removed from the inner barrel body 123 for cleaning or replacement of the filter element 125.
In order to make the filtered oil flow into the cavity 126, in the specific embodiment of the present embodiment, a plurality of oil leakage holes 1255 are formed in a side wall of the third barrel 1251, and the oil leakage holes 1255 communicate an inner cavity of the filter element 125 with the cavity 126. Further, in order to allow the oil in the cavity 126 to flow into the annular chamber 121, the sidewall of the first barrel 1231 is opened with a communication gap 1237, the conduction notch 1237 penetrates through the side wall of the inner barrel body 123 in the radial direction of the inner barrel body 123, and the conduction notch 1237 is communicated with the cavity 126 and the annular cavity 121; since the oil flowing out of the oil leakage hole 1255 flows toward the ground due to the gravity and the return oil pressure, in order to allow more oil to flow into the annular chamber 121, in this embodiment, the communication notch 1237 is located on the side of the sidewall of the first barrel part 1231, which is close to the bottom of the inner barrel 123.
It should be noted that a filter element is disposed in the filter element 125 to filter the oil. In the hydraulic oil tank 10 provided in this embodiment, the oil flows in the direction that, firstly, the oil enters the filtering element 125 from the oil inlet pipe 11, and is filtered by the filtering element 125, the filtered oil flows into the cavity 126 through the oil leakage hole 1255, the oil in the cavity 126 flows into the annular cavity 121 through the conduction notch 1237, under the action of the guide plate 122, the oil flows upward along the spiral channel formed by the guide plate 122 in the annular cavity 121, so as to flush the heat pipe 21, so that the heat of the oil is transferred to the heat pipe 21, the working medium in the heat pipe 21 is vaporized, the heat of the evaporation section of the heat pipe 21 is further transferred to the condensation section of the heat pipe 21, that is, outside the barrel structure 12, and when the oil in the annular cavity 121 flows to the oil outlet pipe 13, the oil flows into the oil supply loop through the oil outlet pipe 13.
In order to effectively dissipate heat at the condensation section of the heat pipe 21, in some optional embodiments, the heat dissipation assembly 2 further includes a plurality of fins 22, the plurality of fins 22 are disposed on one side of the barrel structure 12 along the axial direction of the barrel structure 12, the plurality of fins 22 are located on one side of the barrel structure 12 away from the barrel bottom, the plurality of fins 22 are divided into a plurality of fin groups 22a distributed at intervals along the circumferential direction of the barrel structure 12, the fin groups 22a include a plurality of fins 22 distributed at intervals along the axial direction of the barrel structure 12, and the extending direction of the fins 22 is consistent with the circumferential direction of the barrel structure 12; the fin groups 22a are disposed corresponding to the heat pipes 21, and each fin 22 has a through hole through which the heat pipe 21 passes, so that the heat pipe 21 passes through the corresponding fin group 22a in the axial direction of the barrel structure 12. Therefore, the heat dissipation area of the condensation section of the tube 21 can be increased, so as to improve the heat dissipation efficiency of the hydraulic oil tank 10 provided by the embodiment.
In the present embodiment, the fin 22 is in the shape of a ring sector, the fin 22 has a third circular hole 221 through which the heat supply pipe 21 penetrates, and the heat pipe 21 is fixedly connected to the side wall of the third circular hole 221, for example, by welding or tube expansion, and the material and shape of the fin 22 and the connection manner between the heat pipe 21 and the fin 22 are not particularly limited.
Further, the number of the fin groups 22a, the number of the fins 22 included in each fin group 22a, and the number of the heat pipes 21 are determined according to the heat dissipation power required in actual use, and are not limited herein.
Referring to fig. 1, fig. 6 and fig. 7, fig. 6 is a schematic perspective view of another partial structure of a hydraulic oil tank according to an embodiment of the present disclosure, and fig. 7 is a schematic perspective view of an air guide structure in a hydraulic oil tank according to an embodiment of the present disclosure. As shown in fig. 1, 6 and 7, in order to further improve the heat dissipation effect of the hydraulic oil tank 10 provided in this embodiment, the heat dissipation assembly 2 further includes a fan structure 23 and a wind guiding structure 24, where the fan structure 23 and the barrel structure 12 are relatively distributed on two sides of the plurality of fins 22 along the axial direction of the barrel structure 12; the fan structure 23 includes a fan 231 and a fan housing 232 covering the fan 231; the air guiding structure 24 includes a frame body 241 and a plurality of air deflectors 242, the frame body 241 includes a first annular frame body 2411 and a second annular frame body 2412, the first annular frame body 2411 and the second annular frame body 2412, the fan 231 and the fan casing 232 are all coaxially disposed with the tub body structure 12, the plurality of air deflectors 242 are connected between the first annular frame body 2411 and the second annular frame body 2412, and the plurality of air deflectors 242 are circumferentially spaced apart along the frame body 241, the air deflectors 242 are located between two adjacent fin groups 22a, the first annular frame body 2411, the second annular frame body 2412 and the air deflectors 242 are integrally formed, for example, the air deflectors 242 are connected with the first annular frame body 2411 in a welding manner, the air deflectors 242 are connected with the second annular frame body 2412 in a welding manner, and herein, the connection manner between the first annular frame body 2411, the second annular frame body 2412 and the air deflectors 242 is not particularly limited.
Wherein, the first annular frame body 2411 is located at one side of the second annular frame body 2412 facing the barrel structure 12, the first annular frame body 2411 is detachably connected with the end cover 1232, specifically, one end of the end cover 1232 facing the first annular frame body 2411 is provided with a plurality of first connecting protrusions 1238 which are distributed at intervals along the circumferential direction of the end cover 1232, and the circumferential direction of the first annular frame body 2411 is provided with a plurality of first connecting holes 2413 which are distributed at intervals, the axial direction of first connecting hole 2413 is unanimous with the radial of first annular support body 2411, and first annular support body 2411 cover is established on the periphery of a plurality of first connection protruding 1238, is provided with the second connecting hole 1239 corresponding with first connecting hole 2413 on the first connection protruding 1238, and threaded fastener passes first connecting hole 2413 and second connecting hole 1239 in proper order, can dismantle wind-guiding structure 24 and staving structure 12 and be connected.
Furthermore, one end of the second annular frame body 2412 facing the fan structure 23 is provided with a plurality of second connecting protrusions 2414 distributed at intervals along the circumferential direction of the second annular frame body 2412, the fan shell 232 is sleeved on the periphery of the plurality of second connecting protrusions 2414, the fan shell 232 is provided with a plurality of third connecting holes 2321 distributed at intervals along the circumferential direction of the fan shell 232, the second connecting protrusions 2414 are provided with fourth connecting holes 2415 corresponding to the third connecting holes 2321, and the threaded fasteners sequentially penetrate through the third connecting holes 2321 and the fourth connecting holes 2415 to detachably connect the air guide structure 24 and the fan shell 232; further, the fan 231 may also be detachably connected to the second annular frame body 2412, and here, the connection mode between the fan 231 and the second annular frame body 2412 needs to be determined according to the model and the actual structure of the fan 231, which is not described herein again.
In the above embodiment, the second connection holes 1239 may be provided on each first connection projection 1238, or the second connection holes 1239 may be provided on some of the first connection projections 1238, for example, at intervals; the second connection protrusion 2414 may be disposed as such, and will not be described herein.
In this embodiment, by providing the fan structure 23 and the air guiding structure 24, after the fan 231 is started, the air inlet is formed at the position of the fin group 22a between the two air guiding plates 242, air flows from the periphery to the central negative pressure region, and all air passes through the fins 22 under the guidance of the air guiding plates 242, so that not only can heat on the fins 22 be dissipated in time, but also waste of air volume of the fan 231 is avoided.
It should be noted that, in some embodiments, when the number of the heat pipes 21 is large, the fins 22 may be designed to be a circular disk shape, and in this case, the wind deflector 242 is not required to be provided, and this will not be described in detail.
Referring to fig. 3 and 8, fig. 8 is a schematic perspective view of another partial structure of a hydraulic oil tank according to an embodiment of the present disclosure. As shown in fig. 3 and 8, in order to make the air drawn by the blower 231 flow in a relatively compact space and improve the heat dissipation effect of the fins 22, in the present embodiment, the heat dissipation assembly 2 further includes a partition 25, in the axial direction of the tub structure 12, the partition 25 is located between the tub structure 12 and the fins 22, the partition 25 has a fourth circular hole 251 through which the heat supply pipe 21 passes, and the partition 25 is fixedly connected to the first connecting protrusions 1238, for example, by welding, where the connection manner between the partition 25 and the first connecting protrusions 1238 is not limited.
Specifically, when the heat in the evaporation section of the heat pipe 21 is transferred to the condensation section, the fan 231 is started, and at this time, the heat in the heat pipe 21 and the heat in the fins 22 are dissipated by the airflow through the fins 22, so that the heat dissipation effect of the hydraulic oil tank 10 provided by this embodiment is better.
The hydraulic oil tank provided by the embodiment comprises an oil storage assembly and a heat dissipation assembly, wherein the oil storage assembly comprises an oil inlet pipe, a barrel structure and an oil outlet pipe, the barrel structure is provided with a closed annular cavity, the oil inlet pipe is used for communicating an oil return pipeline and the barrel structure of a hydraulic system, the oil outlet pipe is used for communicating an oil supply pipeline and the annular cavity of the hydraulic system, and a guide plate which spirally rises along the inner peripheral wall of the annular cavity is arranged on the inner peripheral wall of the annular cavity; the radiating assembly comprises a plurality of heat pipes, the plurality of heat pipes are distributed at intervals along the circumferential direction of the annular cavity, the extending direction of the heat pipes is consistent with the axial direction of the barrel structure, one ends of the heat pipes are connected to the bottom wall of the annular cavity, and the other ends of the heat pipes penetrate through the guide plate and extend out of the barrel structure. Like this, the fluid that gets into in the staving structure can flow along spiral helicine guide plate, at the in-process that flows and erode the heat pipe, on the heat transfer of fluid self arrived the heat pipe, the evaporation is heated to the working medium in the heat pipe to the other end of heat pipe is transmitted to the state of steam, outside with heat transfer to the staving structure, in order to accomplish the cooling heat dissipation to hydraulic oil. The hydraulic oil provided by the embodiment the box has good heat dissipation effect.
The embodiment further provides a hydraulic system, which includes an oil supply line, an oil return line and the hydraulic oil tank 10 of the above embodiment, wherein the oil in the oil return line can flow into the oil inlet pipe 11, and the oil in the oil outlet pipe 13 can flow into the oil supply line.
It should be noted that, in the following description, in the above-described embodiment of the present invention, the specific structure and operation principle of the hydraulic oil tank 10 have been described in detail, and will not be described in detail herein.
Further, the hydraulic system provided by the embodiment should also include other components for enabling the hydraulic system to operate normally, and the description of the other components in the hydraulic system is omitted here.
The hydraulic system provided by the embodiment comprises a hydraulic oil tank, wherein the hydraulic oil tank comprises an oil storage assembly and a heat dissipation assembly, the oil storage assembly comprises an oil inlet pipe, a barrel structure and an oil outlet pipe, the barrel structure is provided with a closed annular cavity, the oil inlet pipe is used for communicating an oil return pipeline and the barrel structure of the hydraulic system, the oil outlet pipe is used for communicating an oil supply pipeline and the annular cavity of the hydraulic system, and a guide plate which spirally rises along the inner peripheral wall of the annular cavity is arranged on the inner peripheral wall of the annular cavity; the radiating assembly comprises a plurality of heat pipes, the plurality of heat pipes are distributed at intervals along the circumferential direction of the annular cavity, the extending direction of the heat pipes is consistent with the axial direction of the barrel structure, one ends of the heat pipes are connected to the bottom wall of the annular cavity, and the other ends of the heat pipes penetrate through the guide plate and extend out of the barrel structure. Like this, the fluid that gets into in the staving structure can flow along spiral helicine guide plate, at the in-process that flows and erode the heat pipe, on the heat transfer of fluid self arrived the heat pipe, the evaporation is heated to the working medium in the heat pipe to the other end of heat pipe is transmitted to the state of steam, outside with heat transfer to the staving structure, in order to accomplish the cooling heat dissipation to hydraulic oil. Wherein, hydraulic oil case radiating effect is good to make the hydraulic system that this embodiment provided have stronger stability.
It is noted that, in this document, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action, and do not necessarily require or imply any actual relationship or order between such entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A hydraulic oil tank (10) is characterized by comprising an oil storage assembly (1) and a heat dissipation assembly (2), wherein the oil storage assembly (1) comprises an oil inlet pipe (11), a barrel structure (12) and an oil outlet pipe (13), the barrel structure (12) is provided with a closed annular cavity (121), the oil outlet pipe (13) is used for communicating an oil supply pipeline of a hydraulic system with the annular cavity (121), and a guide plate (122) which spirally rises along the inner peripheral wall of the annular cavity (121) is arranged on the inner peripheral wall of the annular cavity (121);
the heat dissipation assembly (2) comprises a plurality of heat pipes (21), the plurality of heat pipes (21) are distributed at intervals along the circumferential direction of the annular cavity (121), the extending direction of the heat pipes (21) is consistent with the axial direction of the barrel structure (12), one ends of the heat pipes (21) are connected to the bottom wall of the annular cavity (121), and the other ends of the heat pipes (21) extend out of the barrel structure (12) through the guide plate (122);
the barrel body structure (12) comprises an inner barrel body (123) and an outer barrel body (124) which are communicated with each other, the outer barrel body (124) is coaxially sleeved outside the inner barrel body (123), the annular cavity (121) is formed between the outer barrel body (124) and the inner barrel body (123), the outer side wall of the inner barrel body (123) forms the inner peripheral wall of the annular cavity (121), the inner side wall of the outer barrel body (124) forms the outer peripheral wall of the annular cavity (121), and part of the inner bottom wall of the outer barrel body (124) forms the bottom wall of the annular cavity (121); a conduction gap (1237) is formed in the side wall of the inner barrel body (123), the conduction gap (1237) penetrates through the side wall of the inner barrel body (123) in the radial direction of the inner barrel body (123), and the conduction gap (1237) is communicated with the inner cavity of the inner barrel body (123) and the annular cavity (121); the conduction notch (1237) is positioned on one side, close to the bottom of the inner barrel body (123), of the side wall of the inner barrel body (123);
the barrel structure (12) further comprises a filter element (125), the filter element (125) is arranged in the inner cavity of the inner barrel body (123), so as to form a cavity (126) between the filter element (125) and the inner barrel body (123), wherein the oil inlet pipe (11) is used for communicating an oil return pipeline of a hydraulic system with the filter element (125); a plurality of oil leakage holes (1255) are formed in the filtering piece (125), and the oil leakage holes (1255) are communicated with the inner cavity of the filtering piece (125) and the cavity (126); the heat dissipation assembly (2) further comprises a plurality of fins (22), the plurality of fins (22) are arranged on one side of the barrel structure (12) along the axial direction of the barrel structure (12), the plurality of fins (22) are divided into a plurality of fin groups (22 a) distributed at intervals along the circumferential direction of the barrel structure (12), each fin group (22 a) comprises a plurality of fins (22) distributed at intervals along the axial direction of the barrel structure (12), and the extending direction of each fin (22) is consistent with the circumferential direction of the barrel structure (12); the fin groups (22 a) are arranged corresponding to the heat pipes (21), and each fin (22) is provided with a through hole for the heat pipe (21) to penetrate through, so that the heat pipe (21) penetrates through the corresponding fin group (22 a) in the axial direction of the barrel structure (12); the heat dissipation assembly (2) further comprises a fan structure (23) and an air guide structure (24), wherein the fan structure (23) and the barrel body structure (12) are oppositely distributed on two sides of the plurality of fins (22) along the axial direction of the barrel body structure (12); one end of the air guide structure (24) is detachably connected with the barrel structure (12), the other end of the air guide structure (24) is detachably connected with the fan structure (23), the air guide structure (24) comprises a plurality of air guide plates (242) distributed at intervals along the circumferential direction of the barrel structure (12), and the air guide plates (242) are positioned between two adjacent fin groups (22 a); the heat dissipation assembly (2) further comprises a partition plate (25) which is arranged in the axial direction of the barrel structure (12), the baffle (25) is located between the tub structure (12) and the plurality of fins (22).
2. A hydraulic tank (10) according to claim 1, characterized in that said deflector (122) is in close abutment with the inner and outer peripheral walls of said annular chamber (121).
3. Hydraulic system, characterized in that it comprises a hydraulic tank (10) according to claim 1 or 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210156304.1A CN114704511B (en) | 2022-02-21 | 2022-02-21 | Hydraulic oil tank and hydraulic system |
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| CN202210156304.1A CN114704511B (en) | 2022-02-21 | 2022-02-21 | Hydraulic oil tank and hydraulic system |
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| CN114704511A CN114704511A (en) | 2022-07-05 |
| CN114704511B true CN114704511B (en) | 2022-12-27 |
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| JPS58196301A (en) * | 1982-05-11 | 1983-11-15 | Mitsuo Sohgoh Kenkyusho Kk | Working oil cooler of hydraulic power unit |
| JPS63293302A (en) * | 1987-05-26 | 1988-11-30 | Tokyo Keiki Co Ltd | Hydraulically operated work oil tank |
| JP3780828B2 (en) * | 2000-07-10 | 2006-05-31 | 日立建機株式会社 | Hydraulic oil tank |
| DE202004011911U1 (en) * | 2004-07-29 | 2005-01-20 | Universal Hydraulik Gmbh | Method for cooling and filtering hydraulic fluid in a recirculating system has a one piece module fitted to a hole in the hydraulic tank wall and incorporating a filter cartridge and a heat exchanger for a cooling circuit |
| DE102010035054A1 (en) * | 2010-08-21 | 2012-02-23 | Robert Bosch Gmbh | oilcontainer |
| WO2013108575A1 (en) * | 2012-01-19 | 2013-07-25 | 日立建機株式会社 | Transport vehicle |
| JP2015055143A (en) * | 2013-09-13 | 2015-03-23 | キャタピラー エス エー アール エル | Hydraulic oil tank cooling device and work machine |
| CN204140549U (en) * | 2014-10-13 | 2015-02-04 | 中国舰船研究设计中心 | The quiet oil source apparatus of integration |
| DE102015219091A1 (en) * | 2015-10-02 | 2017-04-06 | Robert Bosch Gmbh | Electrohydraulic compact unit |
| DE102015219078A1 (en) * | 2015-10-02 | 2017-04-06 | Robert Bosch Gmbh | Hydrostatic compact unit with cooling |
| DE102016216698A1 (en) * | 2016-09-05 | 2018-03-08 | Robert Bosch Gmbh | Tank and electro-hydraulic compact unit with one tank |
| CN207554447U (en) * | 2017-10-31 | 2018-06-29 | 燕山大学 | A kind of hollow cooling oil box |
| CN207568983U (en) * | 2017-12-05 | 2018-07-03 | 山推工程机械股份有限公司 | A kind of engineering machinery integrated hydraulic fuel tank |
| CN208793388U (en) * | 2018-09-26 | 2019-04-26 | 浙江杭钻能源装备有限公司 | A kind of oil tank cooling system |
| CN213839126U (en) * | 2020-12-04 | 2021-07-30 | 山东烯泰天工节能科技有限公司 | Hydraulic oil tank constant temperature equipment and hydraulic transmission system |
| CN214063416U (en) * | 2020-12-17 | 2021-08-27 | 新乡市宏强机电科技有限公司 | Safe type hydraulic tank |
| CN215634026U (en) * | 2021-07-30 | 2022-01-25 | 中联重科土方机械有限公司 | Hydraulic oil tank and hydraulic system |
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