Hydraulic oil cooling device for hydraulic equipment

Abstract

The utility model discloses a hydraulic oil cooling device for hydraulic equipment, which belongs to the technical field of hydraulic equipment and comprises a hydraulic oil cooling assembly. The hydraulic oil cooling assembly comprises an air cooling box body which is installed in the hydraulic equipment and close to one side of a hydraulic oil tank, a cooling fan installed in the air cooling box body in an embedded mode, a collecting ring body installed on an air outlet in the back face of the air cooling box body, and a vertical pipe longitudinally connected to the upper portion of the collecting ring body in a penetrating mode. The exhaust transverse pipe is connected to the top end of the vertical pipe in a penetrating mode, and the branch exhaust heat dissipation air pipes are connected to the outer wall of the top of the exhaust transverse pipe at equal intervals in a penetrating mode. And the flow guide rotating blades rotate to bring the airflow into the whole cavity of the hydraulic equipment and guide the airflow to each corner. According to the utility model, cooling air flow can be guided to different key heating areas of the equipment, so that fine heat dissipation is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic equipment technical field especially a kind of cooling device for hydraulic oil of hydraulic equipment. BACKGROUND

[0002] Hydraulic equipment is widely used in industrial manufacturing, engineering machinery, automation control and other fields, in the operation process, hydraulic oil continues to heat due to mechanical friction, pressure loss and other factors.If not promptly cooled, it will lead to oil viscosity, seal performance deterioration, system response delay, and even cause equipment failure. Therefore, the cooling device for hydraulic oil as the key component to ensure the stable operation of hydraulic system has important engineering significance. The commonly used hydraulic oil cooling methods mainly include air-cooled and water-cooled two kinds, wherein air-cooled structure is simple, easy to maintain, and more widely used.

[0003] However, the traditional hydraulic oil cooling device is mostly used fan to blow and cool the hydraulic oil tank or surrounding area. Although this structure is simple, the airflow path is single, lacks effective flow guide and concentrated delivery design, resulting in a large amount of airflow being dissipated to the environment without being effectively utilized. The airflow generated by the fan rapidly spreads in the open space, cannot form a high-pressure area, and lacks a special air duct to guide the airflow to the key heating area. The air outlet position is fixed, and the air supply direction cannot be flexibly adjusted according to the equipment structure. SUMMARY

[0004] The utility model aims at providing a kind of cooling device for hydraulic oil of hydraulic equipment to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of cooling device for hydraulic oil of hydraulic equipment, including the cooling assembly of hydraulic oil, the cooling assembly of hydraulic oil includes the air-cooled box body installed in the hydraulic equipment and close to the side of hydraulic oil tank, the heat dissipation fan embeddedly installed in the air-cooled box body, the collection ring body installed on the air outlet on the back of air-cooled box body, the vertical pipe vertically connected to the upper part of collection ring body, the exhaust horizontal pipe connected to the top end of vertical pipe and the multiple branch exhaust heat dissipation air pipes equidistantly connected to the top outer wall of exhaust horizontal pipe, the side of collection ring body faces the air outlet and is symmetrically provided with multiple converging air inlets, so that the gas output by the heat dissipation fan is output from the air outlet and enters the collection ring body through the converging air inlet, the gas flows into the vertical pipe from the inner cavity of the collection ring body, and the air outlet side is provided with flow guide rotating blades, so that the gas is blown to the flow guide rotating blades after being output from the air outlet, the flow guide rotating blades rotate to guide the airflow to the entire chamber of the hydraulic equipment, and the airflow is guided to each corner.

[0006] Preferably, the outer wall of the exhaust horizontal pipe is equidistantly connected with multiple branch connecting pipes, and each branch connecting pipe is provided with an electromagnetic valve inside.

[0007] Preferably, one end of each of the branch exhaust heat dissipation air ducts is sealingly connected to the branch connecting pipe.

[0008] Preferably, each of the branch exhaust heat dissipation air ducts is integrally formed with a branch elbow pipe at an end away from the branch connecting pipe, and the branch elbow pipe extends to the side of the device requiring heat dissipation.

[0009] Preferably, a support extension rod is welded at a middle position of the back of the air-cooled box below the air outlet, and a sealing bearing is fixedly embedded in the inside of an end of the support extension rod away from the air-cooled box.

[0010] Preferably, a rotating rod is interference-fitted in the inner ring of the sealing bearing, and a plurality of the flow guide rotating vanes are annularly arrayed and welded on the circumferential side of the rotating rod.

[0011] Preferably, the plurality of flow guide rotating vanes are located at a position directly in front of the air outlet and can receive the blowing of the air stream output from the air outlet.

[0012] Preferably, a rib plate is welded between the top surface of an end of the support extension rod away from the sealing bearing and the outer wall of the air-cooled box.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The cooling device for hydraulic oil of the hydraulic equipment has an air-cooled box as a core carrier, and a high-efficiency heat dissipation fan is embedded in the inside of the air-cooled box. After the fan is started, external air is sucked in and a high-pressure air flow is formed in the box. The air flow generated by the fan is discharged through the air outlet and, before entering the collecting ring body, first passes through a plurality of air inlets on the side of the air outlet towards the air outlet. The air inlets are symmetrically arranged, so that the air flow converges into the ring body. The air flow enters the vertical pipe from the collecting ring body, is transported in the vertical direction to the exhaust horizontal pipe at the upper part, and is then split to the required area through a plurality of branch exhaust heat dissipation air ducts distributed at equal intervals. The vertical pipe structure can maintain a high pressure of the air flow in the vertical channel, so that sufficient kinetic energy is ensured when the air flow is transported over a long distance. The cooperation of the exhaust horizontal pipe and the plurality of branch air ducts enables the cooling air flow to be guided to different key heating areas of the equipment, so that fine heat dissipation is achieved. The number of branch air ducts can be increased or decreased according to the needs of the equipment, so that the universality and adaptability of the device are improved.

[0015] Part of the air flow directly impacts the flow guide rotating vanes from the air outlet, drives the rotating rod to rotate, and thus drives the blade set to continuously rotate, so that the originally straight air flow is converted into a rotating and diffusing air flow. The flow guide rotating vanes guide the air flow to all directions, compensate for the dead angle of conventional air supply, achieve omnidirectional coverage, avoid the air flow from circulating only in a local area, and improve the overall heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the connection structure of the exhaust horizontal pipe of this utility model;

[0019] Fig. 3 This is a schematic diagram of the installation structure of the collection ring of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] In the diagram: 1. Hydraulic oil cooling assembly; 2. Air-cooled housing; 3. Cooling fan; 4. Mounting lugs; 5. Exhaust horizontal pipe; 6. Branch exhaust cooling duct; 7. Guide vane; 8. Support extension rod; 9. Branch elbow pipe; 10. Branch connecting pipe; 11. Solenoid valve; 12. Riser; 13. Collection ring; 14. Converging air inlet; 15. Air outlet; 16. Rotating rod; 17. Sealed bearing; 18. Rib plate. Detailed Implementation

[0022] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0023] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0024] This embodiment provides, for example Figs. 1 to 3The diagram illustrates a hydraulic oil cooling device for hydraulic equipment, comprising a hydraulic oil cooling assembly 1. The hydraulic oil cooling assembly 1 includes an air-cooled housing 2 installed in the hydraulic equipment near the hydraulic oil tank; a cooling fan 3 embedded in the air-cooled housing 2; a collecting ring 13 mounted on an air outlet 15 on the back of the air-cooled housing 2; a vertical pipe 12 longitudinally connected to the upper part of the collecting ring 13; an exhaust horizontal pipe 5 connected to the top of the vertical pipe 12; and multiple branch exhaust and cooling air ducts 6 equidistantly connected to the top outer wall of the exhaust horizontal pipe 5. The collecting ring 13 has multiple symmetrically arranged converging air inlets 14 on its side facing the air outlet 15, allowing the cooling fan 3 to output... Gas exits from outlet 15 and enters the collecting ring 13 through converging inlet 14. The gas then flows from the inner cavity of the collecting ring 13 into the riser 12, and from the riser 12 into the exhaust horizontal pipe 5. The design of multiple branch exhaust cooling ducts 6 on the outside of the exhaust horizontal pipe 5 allows the airflow to be specifically directed to the required components for cooling, thereby improving heat dissipation efficiency. A guide vane 7 is provided on one side of outlet 15, so that after the gas exits from outlet 15, it blows onto the guide vane 7, causing the guide vane 7 to rotate and guide the airflow throughout the entire chamber of the hydraulic equipment, directing it to all corners and increasing the heat dissipation range. The branch exhaust cooling ducts 6 can specifically blow air to the key components requiring heat dissipation, ensuring rapid heat dissipation. The design of the guide vane 7 ensures that the airflow is evenly distributed throughout the hydraulic equipment chamber, avoiding localized overheating.

[0025] In this embodiment, multiple branch pipes 10 are equidistantly connected to the outer periphery of the exhaust horizontal pipe 5, and each branch pipe 10 is equipped with an electromagnetic valve 11 inside.

[0026] In this embodiment, one end of each branch exhaust and heat dissipation duct 6 is sealed and connected to the branch connecting pipe 10.

[0027] In this embodiment, each branch exhaust heat dissipation duct 6 has a branch elbow 9 integrally formed at the end away from the branch connecting pipe 10, and the branch elbow 9 extends to the side of the device that needs heat dissipation.

[0028] In this embodiment, a support extension rod 8 is welded below the air outlet 15 and at the middle position of the back of the air-cooled housing 2. A sealed bearing 17 is fixedly embedded in the end of the support extension rod 8 away from the air-cooled housing 2.

[0029] In this embodiment, a rotating rod 16 is interference-fitted in the inner ring of the sealed bearing 17, and multiple guide rotating blades 7 are provided and welded in an annular array to the periphery of the rotating rod 16.

[0030] In this embodiment, multiple guide rotating blades 7 are located directly in front of the air outlet 15 and can receive the blowing of the airflow output from the air outlet 15.

[0031] In this embodiment, a rib plate 18 is welded between the top surface of the end of the support extension rod 8 away from the sealed bearing 17 and the outer wall of the air-cooled box 2.

[0032] Working principle

[0033] The hydraulic equipment uses a hydraulic oil cooling device. When the hydraulic equipment is running, the hydraulic oil generates heat during circulation, which starts the cooling fan 3 installed inside the air-cooled housing 2. The cooling fan 3 rotates at high speed, drawing in ambient air or cooler air from inside the equipment, forming a high-pressure airflow inside the air-cooled housing 2. The gas enters the collecting ring 13 from the air outlet 15. The air outlet 15 is located on the back of the air-cooled housing 2, and the gas is discharged through the air outlet 15. The air outlet 15 is connected to the collecting ring 13. The side of the ring facing the air outlet 15 is provided with multiple converging air inlets 14. The multiple converging air inlets 14 can effectively absorb the airflow from the air outlet 15, so that the airflow is evenly introduced into the collecting ring 13, playing a role in initially converging the airflow and increasing the air pressure.

[0034] Gas enters the exhaust horizontal pipe 5 through the riser 12. A riser 12 is longitudinally connected above the collecting ring 13. After the airflow flows from the collecting ring 13 into the riser 12, it is transported upward. The top of the riser 12 is connected to the exhaust horizontal pipe 5. After the airflow enters the exhaust horizontal pipe 5, it is distributed secondary along its length and directionally cooled through the branch exhaust cooling ducts 6. Multiple branch exhaust cooling ducts 6 are equidistantly arranged at the top of the exhaust horizontal pipe 5. The airflow is then distributed to each required cooling area. Each branch exhaust cooling duct 6 has an integrally formed branch elbow pipe 9 at its end, which can flexibly adjust the blowing angle to achieve precise air delivery. These ducts are designed to be detachable or adjustable, which is convenient for later maintenance and adaptable to the layout of different models of hydraulic equipment.

[0035] The solenoid valve 11 controls the airflow and switches channels. Multiple branch pipes 10 are connected to the outer wall of the exhaust horizontal pipe 5, each equipped with a solenoid valve 11. The solenoid valve 11 can selectively control which part of the duct outputs airflow, achieving intelligent airflow regulation. For example, when the temperature of certain components is low, the corresponding branch can be closed to save energy; when an increase in the temperature of a component is detected, the corresponding duct is opened to enhance heat dissipation.

[0036] Multiple guide vanes 7 are installed in front of the air outlet 15. These vanes are welded to the rotating rod 16 and can rotate freely through the sealed bearing 17. When the airflow is ejected from the air outlet 15, it impacts the guide vanes 7, causing them to rotate. The rotation of the guide vanes 7 drives the surrounding airflow, transforming the original local airflow into a dynamic airflow that diffuses in all directions, thereby improving the overall heat dissipation efficiency.

[0037] The device is equipped with a support extension rod 8 at the back, the end of which is embedded in a sealed bearing 17 to ensure that the rotating rod 16 rotates smoothly and reduce vibration. The support extension rod 8 is reinforced with the air-cooled box 2 by ribs 18 to improve the overall structural strength and prevent deformation or loosening due to long-term operation.

[0038] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for hydraulic oil in hydraulic equipment, comprising a hydraulic oil cooling assembly (1), characterized in that: The hydraulic oil cooling assembly (1) includes an air-cooled housing (2) installed in the hydraulic equipment and close to the hydraulic oil tank, a cooling fan (3) embedded in the air-cooled housing (2), a collection ring (13) installed on the air outlet (15) on the back of the air-cooled housing (2), a vertical pipe (12) longitudinally connected to the upper part of the collection ring (13), an exhaust horizontal pipe (5) connected to the top of the vertical pipe (12), and multiple branch exhaust cooling air pipes (6) equidistantly connected to the outer wall of the top of the exhaust horizontal pipe (5). The collection ring (13) faces the outlet. Multiple converging air inlets (14) are symmetrically provided on one side of the air outlet (15), so that the gas output by the cooling fan (3) is output from the air outlet (15) and enters the collection ring (13) through the converging air inlets (14). The gas flows from the inner cavity of the collection ring (13) into the riser (12). A guide rotating blade (7) is provided on one side of the air outlet (15), so that the gas is blown from the air outlet (15) to the guide rotating blade (7), so that the guide rotating blade (7) rotates and carries the airflow to the entire chamber of the hydraulic equipment and guides it to each corner.

2. The cooling device for hydraulic oil in hydraulic equipment according to claim 1, characterized in that: The outer wall of the exhaust horizontal pipe (5) is equidistantly connected to multiple branch pipes (10), and each branch pipe (10) is equipped with an electromagnetic valve (11).

3. A cooling device for hydraulic oil in hydraulic equipment according to claim 2, characterized in that: One end of each of the branch exhaust and heat dissipation ducts (6) is sealed together with the branch connecting pipe (10).

4. A cooling device for hydraulic oil in hydraulic equipment according to claim 3, characterized in that: Each of the branch exhaust heat dissipation ducts (6) has a branch elbow (9) integrally formed at the end away from the branch connecting pipe (10), and the branch elbow (9) extends to the side of the device that needs to be cooled.

5. A cooling device for hydraulic oil in hydraulic equipment according to claim 4, characterized in that: A support extension rod (8) is welded below the air outlet (15) and at the middle of the back of the air-cooled box (2). A sealed bearing (17) is fixedly embedded in the end of the support extension rod (8) away from the air-cooled box (2).

6. A cooling device for hydraulic oil in hydraulic equipment according to claim 5, characterized in that: The inner ring of the sealed bearing (17) is interference-fitted with a rotating rod (16), and multiple guide rotating blades (7) are provided and welded in an annular array to the periphery of the rotating rod (16).

7. A cooling device for hydraulic oil in hydraulic equipment according to claim 6, characterized in that: The multiple guide vanes (7) are located directly in front of the air outlet (15) and are able to receive the blowing of the airflow output from the air outlet (15).

8. A cooling device for hydraulic oil in hydraulic equipment according to claim 5, characterized in that: A rib (18) is welded between the top surface of the end of the support extension rod (8) away from the sealed bearing (17) and the outer wall of the air-cooled box (2).

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