Electric-hydraulic push rod water cooling device

By combining a flexible cooling jacket and heat-conducting components with a flexible heat exchange coil, the problem of incomplete cooling of the hydraulic oil tank in existing electro-hydraulic actuator water-cooling devices is solved, achieving all-round cooling of the hydraulic oil tank and improving the cooling effect and device stability.

CN223725038UActive Publication Date: 2025-12-26JIANGSU XINLIAN HYDRAULIC MECHANICAL & ELECTRICALCO
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Patent Information

Application Number
CN202520492523.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-12-26
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

Existing electro-hydraulic actuator water cooling devices can only cool the end portion and cannot effectively cool the hydraulic oil tank located in the middle of the device.

Method used

The system employs a flexible cooling jacket and heat-conducting components, combined with flexible heat exchange coils and coolant circulation components, and is designed as a detachable structure. The heat-conducting components are tightly attached to the side of the hydraulic oil tank, and the coolant circulation achieves efficient cooling of the hydraulic oil tank.

Benefits of technology

It achieves all-round cooling of the hydraulic oil tank of the electro-hydraulic actuator, improves the cooling effect, enhances the stability and practicality of the device, adapts to harsh environments, and simplifies the installation and maintenance process.

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Abstract

The utility model relates to the technical field of water cooling devices, in particular to an electric-hydraulic push rod water cooling device which comprises an electric-hydraulic push rod, a cooling assembly detachably arranged at the position of a hydraulic oil tank of the electric-hydraulic push rod and a cooling liquid circulating assembly communicated with the cooling assembly. The flexible cooling device has the advantages that the flexible cooling sleeve is tightly attached to the side face of the hydraulic oil tank of the electric-hydraulic push rod through the heat conduction assembly installed in an embedded mode, and heat is effectively absorbed. The heat conduction assembly transfers heat to the cooling liquid in the flexible cooling sleeve, and then the flexible heat exchange coil and the cooling liquid circulation assembly work cooperatively, so that efficient cooling of the hydraulic oil tank is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to water cooling device technical field especially relates to a kind of electro-hydraulic push rod water cooling device. BACKGROUND

[0002] Electro-hydraulic push rod is a kind of hydraulic drive manipulator integrated with machine, electricity and liquid, suitable for reciprocating push-pull linear (or reciprocating rotation certain angle) motion, also can be used in the place needing to rise, drop or clamp workpiece, and can realize centralized or automatic control in remote dangerous area.

[0003] In the related art, the patent with the authorization announcement No.CN219605723U discloses a kind of electro-hydraulic push rod water cooling device, including base, the inner cavity of base is provided with fin, base and the inner side of fin are installed heat dissipation fan, the bottom end of base is provided with heat dissipation hole, the inner cavity of base is inserted with electro-hydraulic push rod, using the design of split type, cooling mechanism and electro-hydraulic push rod can be disassembled each other, it is convenient for subsequent check and repair, easy to operate, save time and effort, and, on the basis of original, wind cooling device is increased, cooperates with water cooling, greatly improve the cooling effect of whole, can effectively inhibit the change of temperature, the purpose of cooling electro-hydraulic push rod is mainly to cool the hydraulic oil of hydraulic oil tank, however, the water cooling device can only cool the end part of electro-hydraulic push rod, but part of the hydraulic oil tank of electro-hydraulic push rod is located in the middle position of device (such as electro-hydraulic push rod of the publication No.CN219809230U), the device cannot effectively cool the hydraulic oil of such electro-hydraulic push rod, for this, we propose a kind of electro-hydraulic push rod water cooling device.

[0004] The above information disclosed in the background section of this document merely to understand the background of the inventive concept, and therefore, it can include information that does not constitute the prior art. SUMMARY

[0005] The utility model aims at providing a kind of electro-hydraulic push rod water cooling device, to solve the problem that the water cooling device can only cool the end part of electro-hydraulic push rod in the above background art, but part of the hydraulic oil tank of electro-hydraulic push rod is located in the middle position of device (such as electro-hydraulic push rod of the publication No.CN219809230U), the device cannot effectively cool the hydraulic oil of such electro-hydraulic push rod.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of electro-hydraulic push rod water cooling device, including electro-hydraulic push rod, cooling assembly being detachably arranged in the position of the hydraulic oil tank of electro-hydraulic push rod and cooling liquid circulation assembly being communicated with cooling assembly,

[0008] The cooling assembly comprises a flexible cooling jacket, the inside of the flexible cooling jacket is filled with cooling liquid, a plurality of heat conduction assemblies are embeddedly arranged on one side of the flexible cooling jacket close to the electro-hydraulic push rod, the contact position of the heat conduction assembly and the flexible cooling jacket is sealed, and the inside of the flexible cooling jacket is provided with a flexible heat exchange coil.

[0009] The two ends of the flexible heat exchange coil are in communication with circulating pipes in a cooling liquid circulating assembly, a micro water pump is arranged on the circulating pipe, one end of the circulating pipe is integrally formed with a hose, and one end of the hose is in communication with a water tank assembly.

[0010] The heat conduction assembly is arranged at the gap of the flexible heat exchange coil.

[0011] In some embodiments, the water tank assembly comprises a water tank in communication with the hose, the flexible heat exchange coil is filled with cooling liquid, the upper end of the water tank is provided with a water pipe, and a stop valve is arranged on the water pipe.

[0012] In some embodiments, the heat conduction assembly comprises a heat conduction strip, the heat conduction strip is embeddedly arranged on the inner side of the flexible cooling jacket, one end of the heat conduction strip is in abutment with the side of the electro-hydraulic push rod, and a plurality of heat dissipation fins are integrally formed on one side of the heat conduction strip in the inside of the flexible cooling jacket.

[0013] In some embodiments, a plurality of support rods are arranged at the gap between the heat dissipation fins on one side of the heat conduction strip in the flexible cooling jacket, a buffer block is arranged on the end of the support rod away from the heat conduction strip, and the buffer block is in abutment with the inner wall of the flexible cooling jacket.

[0014] In some embodiments, the upper end of the flexible cooling jacket is in communication with a liquid supplementing pipe, and a stop valve is arranged on the liquid supplementing pipe.

[0015] In some embodiments, the side of the flexible cooling jacket is provided with a connecting and fixing assembly, the connecting and fixing assembly comprises clamping blocks symmetrically arranged on the flexible cooling jacket, and a fixing cable is arranged through the clamping block.

[0016] The utility model discloses the beneficial effect is:

[0017] The flexible cooling jacket is tightly attached to the side of the hydraulic tank of the electro-hydraulic push rod through the embedded installation of the heat conduction component, effectively absorbing heat. The heat conduction component transmits heat to the cooling liquid inside the flexible cooling jacket, and then cooperates with the cooling liquid circulating component through the flexible heat exchange coil to realize efficient cooling of the hydraulic tank; the outer layer of the flexible cooling jacket is made of high-temperature-resistant and corrosion-resistant silicone rubber or fluororubber, which has flexibility and long-term anti-aging performance, can adapt to the operation requirements of the electro-hydraulic push rod in harsh environments, the internal reinforcing layer uses polyester fiber woven mesh or aramid fiber to improve the compression strength and prevent deformation, and ensure the stability of the device during long-term use; the cooling component adopts a detachable design, the flexible cooling jacket is easily fixed on the electro-hydraulic push rod through the connecting and fixing component (such as a clamping block and a fixing cable tie), the installation is simple, and the design of the liquid supplement pipe and the water tank component further facilitates the supplement and maintenance of the cooling liquid, improving the practicability of the device; the heat conduction strip and the heat dissipation fin in the heat conduction component are made of aluminum alloy or copper alloy with high thermal conductivity, the heat dissipation fin is formed through stamping or extrusion process to increase the surface area, thereby optimizing the heat dissipation effect, the flexible heat exchange coil is made of stainless steel bellows, which is corrosion-resistant and has high heat exchange efficiency, further improving the cooling performance; the design of the flexible cooling jacket and the flexible heat exchange coil can flexibly adapt to the shape and size of the electro-hydraulic push rod, ensuring good attachment with the hydraulic tank and providing stable cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structural schematic view of the electro-hydraulic push rod water cooling device is provided for the utility model.

[0019] Figure 2 A cooling component structural schematic view of the electro-hydraulic push rod water cooling device is provided for the utility model.

[0020] Figure 3 A flexible heat exchange coil structural schematic view of the electro-hydraulic push rod water cooling device is provided for the utility model.

[0021] Figure 4 A flexible cooling jacket sectional view of the electro-hydraulic push rod water cooling device is provided for the utility model.

[0022] Figure 5 A heat conduction component structural schematic view of the electro-hydraulic push rod water cooling device is provided for the utility model.

[0023] In the figure: 1 is an electro-hydraulic push rod, 2 is a water tank component, 201 is a water tank, 202 is a water pipe, 3 is a cooling liquid circulating component, 301 is a circulating pipe, 302 is a miniature water pump, 303 is a hose, 4 is a cooling component, 401 is a flexible cooling jacket, 402 is a liquid supplement pipe, 403 is a heat conduction component, 403-1 is a heat conduction strip, 403-2 is a heat dissipation fin, 403-3 is a supporting rod, 404 is a flexible heat exchange coil, 5 is a connecting and fixing component, 501 is a clamping block, and 502 is a fixing cable tie. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0025] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0026] In the description of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Reference Figure 1 , 2 , 3, 4, 5, an electro-hydraulic push rod water cooling device, comprising an electro-hydraulic push rod 1, a cooling assembly 4 detachably arranged at the hydraulic oil tank position of the electro-hydraulic push rod 1, and a cooling liquid circulating assembly 3 arranged in communication with the cooling assembly 4,

[0028] The cooling assembly 4 comprises a flexible cooling jacket 401, the inside of the flexible cooling jacket 401 is filled with cooling liquid, a plurality of heat conduction assemblies 403 are embeddedly installed on one side of the flexible cooling jacket 401 close to the electro-hydraulic push rod 1, the contact position of the heat conduction assembly 403 and the flexible cooling jacket 401 is sealingly arranged, and the inside of the flexible cooling jacket 401 is provided with a flexible heat exchange coil 404;

[0029] The two ends of the flexible heat exchange coil 404 are arranged in communication with the circulating pipe 301 in the cooling liquid circulating assembly 3, a micro water pump 302 is installed on the circulating pipe 301, one end of the circulating pipe 301 is integrally formed with a hose 303, and one end of the hose 303 is arranged in communication with the water tank assembly 2;

[0030] The heat conduction assembly 403 is arranged at the gap of the flexible heat exchange coil 404;

[0031] The flexible cooling jacket 401 has a multi-layer structure. The outer substrate is made of high-temperature and corrosion-resistant silicone rubber or fluororubber, which has flexibility and long-term anti-aging properties. The inner reinforcing layer is made of polyester fiber woven mesh or aramid fiber, which improves compressive strength and prevents deformation. Together with the heat-conducting component 403, it can effectively cool the hydraulic oil tank part of the electro-hydraulic actuator 1. At the same time, the coolant in the flexible cooling jacket 401 is cooled by the flexible heat exchange coil 404 to maintain the normal temperature of the coolant. The flexible heat exchange coil 404 is made of stainless steel corrugated pipe.

[0032] In specific implementation of the embodiments of this utility model, such as Figure 1 , 2 As shown, the water tank assembly 2 includes a water tank 201 connected to a hose 303. Coolant flows inside the flexible heat exchange coil 404. A water pipe 202 is installed at the upper end of the water tank 201, and a shut-off valve is installed on the water pipe 202. Cooling water is replenished and used through the water tank 201 and the water pipe 202. At the same time, the water tank 201 is equipped with an observation window and a temperature sensor to monitor the water level and water temperature in real time, ensuring the normal operation of the overall cooling system.

[0033] In specific implementation of the embodiments of this utility model, such as Figure 1 , 5 As shown, the heat-conducting component 403 includes a heat-conducting strip 403-1, which is fitted into the inner end face of the flexible cooling sleeve 401. One end of the heat-conducting strip 403-1 is attached to the side of the electro-hydraulic actuator 1. Multiple sets of heat sinks 403-2 are integrally formed on one side of the heat-conducting strip 403-1 inside the flexible cooling sleeve 401. Multiple sets of support rods 403-3 are provided in the gaps between the heat sinks 403-2 on one side of the heat-conducting strip 403-1 inside the flexible cooling sleeve 401. A buffer block is provided at the end of the support rod 403-3 away from the heat conduction strip 403-1. The buffer block is fitted to the inner wall of the flexible cooling sleeve 401. The heat conduction strip 403-1 and the heat sink 403-2 are made of aluminum alloy or copper alloy with high thermal conductivity. The heat sink 403-2 is formed by stamping or extrusion process to increase the surface area and optimize the heat dissipation effect. The support rod 403-3 can support the flexible cooling sleeve 401 and prevent the heat sink 403-2 from scratching the inner wall of the flexible cooling sleeve 401.

[0034] In specific implementation of the embodiments of this utility model, such as Figure 1 , 2As shown, the upper end of the flexible cooling jacket 401 is provided with a liquid supplement pipe 402, and a stop valve is installed on the liquid supplement pipe 402. The side of the flexible cooling jacket 401 is provided with a connecting and fixing assembly 5, which includes clamping blocks 501 symmetrically arranged on the flexible cooling jacket 401. The clamping blocks 501 are provided with fixed lashing belts 502 penetratingly arranged therein. Through the clamping blocks 501 and the fixed lashing belts 502, the flexible cooling jacket 401 can be fixed on the side of the electro-hydraulic push rod 1, so as to ensure that the heat-conducting strips 403-1 are tightly attached to the side of the hydraulic oil tank, thereby improving the heat-conducting effect of the heat-conducting strips 403-1 and ensuring the cooling effect on the hydraulic oil tank.

[0035] In the embodiment, the components are all general standard components or components known to those skilled in the art, and the structure and connection principle thereof can be known by those skilled in the art through a technical manual or through a conventional experimental method. The device realizes the continuous cooling of the hydraulic oil tank of the electro-hydraulic push rod 1 through the synergistic effect of heat conduction, heat dissipation and cooling liquid circulation. The working process can be divided into the following steps:

[0036] Installation and fixation: The flexible cooling jacket 401 is wrapped around the position of the hydraulic oil tank of the electro-hydraulic push rod 1, and is fixed firmly through the connecting and fixing assembly 5 (including the clamping blocks 501 and the fixed lashing belts 502) on the side, so as to ensure that the heat-conducting strips 403-1 are tightly attached to the side of the hydraulic oil tank, thereby laying a foundation for subsequent heat conduction.

[0037] Heat conduction: The heat-conducting strips 403-1 in the heat-conducting assembly 403 are directly attached to the side of the hydraulic oil tank, and absorb the heat generated during the operation of the hydraulic oil tank. The heat is transferred to the heat radiating fins 403-2 integrally formed in the flexible cooling jacket 401 through the heat-conducting strips 403-1, and the heat radiating fins 403-2 further dissipate the heat to the cooling liquid in the flexible cooling jacket 401.

[0038] Cooling liquid circulation: The cooling liquid in the flexible heat exchange coil 404 is driven by the micro water pump 302 in the cooling liquid circulation assembly 3 to flow in the circulation pipe 301. The circulation pipe 301 is in communication with the water tank 201 assembly through the hose 303. The cooling liquid circulates and exchanges between the flexible heat exchange coil 404 and the water tank 201, takes away the heat transferred by the heat radiating fins 403-2, and realizes the cooling of the cooling liquid.

[0039] Cooling liquid management: The water tank assembly 2 supplements or uses the cooling liquid through the water pipe 202 and the stop valve at the upper end, so as to ensure the sufficient supply of the cooling liquid. The water level and water temperature in the water tank are monitored in real time through the observation window and the temperature sensor, so as to ensure that the cooling system is in a normal working state.

[0040] Continuous cooling: the flexible heat exchange coil 404 continuously reduces the temperature of the cooling liquid in the flexible cooling jacket 401 through heat exchange with the cooling liquid, the cooling liquid absorbs the heat of the cooling fin 403-2 and then circulates to the water tank 201 to reduce the temperature, thereby maintaining the low temperature state of the hydraulic oil tank and ensuring the stable operation of the electro-hydraulic push rod 1.

[0041] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An electro-hydraulic push rod water cooling device, comprising an electro-hydraulic push rod, a cooling assembly detachably arranged at a hydraulic oil tank position of the electro-hydraulic push rod, and a cooling liquid circulating assembly arranged in communication with the cooling assembly, characterized in that: the cooling assembly comprises a flexible cooling jacket, the inside of the flexible cooling jacket is filled with cooling liquid, a plurality of heat conduction assemblies are embeddedly installed on the side of the flexible cooling jacket close to the electro-hydraulic push rod, the contact position of the heat conduction assemblies with the flexible cooling jacket is sealingly arranged, and a flexible heat exchange coil is arranged in the inside of the flexible cooling jacket; both ends of the flexible heat exchange coil are arranged in communication with circulating pipes in the cooling liquid circulating assembly, a micro water pump is installed on the circulating pipes, one end of the circulating pipes is integrally formed with a hose, and one end of the hose is arranged in communication with a water tank assembly; the heat conduction assemblies are arranged at the gaps of the flexible heat exchange coil.

2. The electro-hydraulic push rod water cooling device according to claim 1, characterized in that, the water tank assembly comprises a water tank arranged in communication with the hose, cooling liquid flows in the flexible heat exchange coil, a water pipe is arranged at the upper end of the water tank, and a stop valve is arranged on the water pipe.

3. The electro-hydraulic push rod water cooling device of claim 1, wherein, the heat conduction assembly comprises a heat conduction strip, the heat conduction strip is embeddedly arranged at the inner side end face of the flexible cooling jacket, one end of the heat conduction strip is arranged in abutment with the side face of the electro-hydraulic push rod, and a plurality of heat dissipation fins are integrally formed on one side of the heat conduction strip inside the flexible cooling jacket.

4. The electro-hydraulic push rod water cooling device of claim 3, wherein, a plurality of support rods are arranged at the gaps between the heat dissipation fins on one side of the heat conduction strip in the flexible cooling jacket, a buffer block is arranged at the end of the support rod away from the heat conduction strip, and the buffer block is arranged in abutment with the inner wall of the flexible cooling jacket.

5. The electro-hydraulic push rod water cooling device of claim 1, wherein, a liquid supplement pipe is arranged in communication with the upper end of the flexible cooling jacket, and a stop valve is installed on the liquid supplement pipe.

6. The electro-hydraulic push rod water cooling device of claim 1, wherein, a connecting and fixing assembly is arranged on the side face of the flexible cooling jacket, the connecting and fixing assembly comprises clamping blocks symmetrically arranged on the flexible cooling jacket, and a fixing cable is penetratingly arranged in the clamping block.

Citation Information

Patent Citations

  • Electric-hydraulic push rod water cooling device

    CN219605723U

  • Novel electric-hydraulic pusher

    CN219809230U