Hydraulic oil cylinder heat dissipation structure

By designing a water-filled jacket and cooling pipes for the hydraulic cylinder's heat dissipation structure, the problem of oil temperature rise in the hydraulic cylinder under high pressure and high frequency environments is solved, achieving stable heat dissipation in high dust and humid environments, and improving the system's operating efficiency and lifespan.

CN223609007UActive Publication Date: 2025-11-28HEFEI ZHIBIDA HYDRAULIC TECH CO LTD
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Patent Information

Application Number
CN202423231891.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-28
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Under high pressure and high frequency operating conditions, the internal oil temperature of the hydraulic cylinder rises sharply. Existing heat dissipation methods are prone to failure in high dust and humid environments, affecting the system's operating efficiency and lifespan.

Method used

A hydraulic cylinder cooling structure was designed, including the cooperation of a water injection jacket, a snap-fit ​​sleeve, a cooling pipe, and a sliding groove. Coolant is introduced through the water injection jacket, and the cooling pipe is attached to the outside of the hydraulic cylinder body to absorb heat. Stable installation is achieved through the cooperation of a mounting bracket and a connecting rod.

Benefits of technology

It effectively absorbs heat from the hydraulic cylinder body, improves heat dissipation efficiency, ensures stable operation in high dust and humid environments, and extends system life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223609007U_ABST
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Abstract

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a heat dissipation structure of a hydraulic oil cylinder. According to the technical scheme, the hydraulic cylinder comprises a hydraulic cylinder body, a water injection sleeve and a connecting rod, cooling fins are fixedly installed outside the hydraulic cylinder body, a protective sleeve is fixedly installed on the outer side of the hydraulic cylinder body, and the water injection sleeve is installed at one end of the hydraulic cylinder body in a butt joint mode. The water injection pipe, the clamping sleeve, the heat dissipation pipe and the sliding groove are matched with one another, the water injection sleeve can be in butt joint with the outer portion of the hydraulic cylinder body, the clamping sleeve can be installed between the hydraulic cylinder body and the protection sleeve, the heat dissipation pipe can be installed on the inner side of the sliding groove, and therefore the heat dissipation effect is improved. Cooling liquid is guided into the water injection sleeve through the water injection pipe, the cooling liquid is guided into the heat dissipation pipe through the water injection sleeve, the heat dissipation pipe is attached to the outer portion of the hydraulic cylinder body and the surface of the heat dissipation circulation hole, heat dissipated by the hydraulic cylinder body can be conveniently absorbed, and more convenience can be achieved in the using process.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil cylinder technical field, concretely is a kind of hydraulic oil cylinder heat dissipation structure. BACKGROUND

[0002] Hydraulic oil cylinder is the hydraulic energy conversion into mechanical energy, does linear reciprocating motion (or swing motion) hydraulic actuator. Hydraulic oil cylinder simple structure, stable operation, is widely used in the hydraulic system of various machines.

[0003] Search the public number CN220204238U to provide a self-heat dissipation type hydraulic oil cylinder, the utility model discloses a self-heat dissipation type hydraulic oil cylinder belongs to hydraulic oil cylinder technical field, and this self-heat dissipation type hydraulic oil cylinder includes cylinder barrel, cylinder head, cylinder bottom and piston rod, the outer side of cylinder barrel is provided with a layer of heat-conducting silicone grease layer, the outer side of heat-conducting silicone grease layer is sleeved with heat dissipation shell, and the heat dissipation shell is provided with a plurality of groups of aluminum or copper heat dissipation fins;Flange frame is provided on the cylinder head, the flange frame is provided with mounting hole, and the air cooling device is detachably mounted in the mounting hole, the outer side of the cylinder barrel of hydraulic oil cylinder is connected with heat dissipation shell through heat-conducting silicone grease layer, and the heat exchange surface area of hydraulic oil cylinder and air is improved through the structure of heat dissipation fin, so as to enhance the self-heat dissipation efficiency of hydraulic oil cylinder, avoid that the temperature of hydraulic oil in hydraulic oil cylinder is too high to affect the use effect, and the mounting hole for installing air cooling device is reserved on flange frame, so that the heat dissipation capacity can be flexibly improved according to demand, and the heat dissipation effect of hydraulic oil cylinder is fully guaranteed.

[0004] In the hydraulic transmission system, as the core execution element, the performance stability of hydraulic oil cylinder directly affects the running efficiency and service life of the whole system, with the continuous upgrading of industrial equipment, the use of hydraulic oil cylinder in high pressure, high frequency working environment is increasingly common, resulting in the rapid rise of oil temperature inside the oil cylinder, through external fan or air flow to accelerate heat dissipation, but it is greatly influenced by environment, and it is easy to fail in high dust, humid environment.

[0005] Therefore, we propose a kind of hydraulic oil cylinder heat dissipation structure to solve the existing problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of hydraulic oil cylinder heat dissipation structure to solve the problems raised in the above background.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a hydraulic oil cylinder heat dissipation structure, including hydraulic cylinder main part, water injection cover and connecting rod, the outside fixed mounting of hydraulic cylinder main part has the heat dissipation fin, the outside fixed mounting of hydraulic cylinder main part has the protective sleeve, one end of hydraulic cylinder main part is docked and is installed water injection cover, one side fixed mounting of water injection cover has the clamping cover, the inside spacing installation of clamping cover has the radiator pipe, the outside fixed mounting of water injection cover has the connecting rod, the outside fixed mounting of protective sleeve has the docking sleeve corresponding with connecting rod, the top fixed mounting of docking sleeve has the mounting bracket, the inside sliding installation of mounting bracket has the docking rod extending to docking sleeve. Through water injection cover and the outside docking of hydraulic cylinder main part, make clamping cover can be installed between hydraulic cylinder main body and protective sleeve, make the radiator pipe can be installed in the inside of sliding groove, through the water injection pipe imports the coolant to the inside of water injection cover, imports to the inside of radiator pipe through water injection cover, through the surface of the outside of radiator pipe and hydraulic cylinder main body and heat dissipation flow hole and paste, the heat dissipation of hydraulic cylinder main body can be conveniently absorbed.

[0008] Preferably, the protective sleeve is provided with a heat dissipation flow hole, and one end of the radiator pipe is connected to the water injection cover. By fitting the surface of the outside of the radiator pipe and the hydraulic cylinder main body and the heat dissipation flow hole, the heat dissipation of the hydraulic cylinder main body can be conveniently absorbed, and the use is more convenient.

[0009] Preferably, the outside of the clamping cover is provided with a sliding plate, and the heat dissipation fin is provided with a sliding groove matched with the sliding plate. Through the mutual cooperation between the sliding plate and the sliding groove, the docking between the water injection cover and the protective sleeve can be more stable, the installation process is convenient and fast, and the deviation is prevented.

[0010] Preferably, the outside of the hydraulic cylinder main body is provided with an arc-shaped groove matched with the radiator pipe, and the top of the water injection cover is fixedly installed with a water injection pipe. The radiator pipe can be more matched and installed on the outside of the hydraulic cylinder main body through the arc-shaped groove, and the inside of the water injection cover can be conveniently injected with coolant through the water injection pipe.

[0011] Preferably, a limiting plate is fixedly installed on the outside of the docking rod in the inside of the mounting bracket, the limiting plate and the mounting bracket are slidingly installed, and the outside of the docking rod in the inside of the limiting plate is sleeved with a spring. The limiting plate can slide along the inside of the mounting bracket during the movement of the docking rod, one end of the docking rod can extend into the inside of the docking sleeve, and the limiting plate can be pushed through the extrusion of the spring, so that the use is more convenient.

[0012] Preferably, a pulling sleeve is fixedly installed on one end of the docking rod, and anti-skid lines are arranged on the outside of the pulling sleeve. The docking rod can be conveniently pulled through the pulling sleeve, and the connecting rod and the docking sleeve can be separated more conveniently.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The utility model discloses the mutual cooperation between the water injection pipe, the clamping cover, the radiating pipe and the sliding groove can be connected to the outside of the hydraulic cylinder main body through the water injection cover, can make the clamping cover install between the hydraulic cylinder main body and the protective cover, can install the radiating pipe to the inboard of the sliding groove, import the coolant to the inside of the water injection cover through the water injection pipe, import to the inside of the radiating pipe through the water injection cover, the heat that the hydraulic cylinder main body radiates can be conveniently absorbed, and it can be more convenient in the process of using.

[0015] The utility model discloses the mutual cooperation between the mounting bracket, the butt joint pole, the connecting rod and the spring can make the one end of connecting rod go in to the inside of the butt joint cover in the process of connecting the water injection cover and the protective cover, can make the one end of butt joint pole insert to the inside of butt joint cover and carry out the butt joint between connecting rod through the extrusion of spring, make connecting rod can be positioned in the process of installing with protective cover. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the first appearance three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the second appearance three-dimensional structure schematic diagram of the utility model;

[0018] Figure 3 It is the clamping cover and hydraulic cylinder main body installation three-dimensional structure schematic diagram of the utility model;

[0019] Figure 4 It is the inside partial structure schematic diagram of the water injection cover of the utility model;

[0020] Figure 5 It is the connecting rod and butt joint cover installation structure schematic diagram of the utility model.

[0021] In the drawing: 1, hydraulic cylinder main body;101, protective cover;102, radiating flow-through hole;103, radiating fin;104, arc slot;105, sliding groove;2, water injection cover;201, water injection pipe;202, clamping cover;203, radiating pipe;204, sliding plate;3, connecting rod;301, butt joint cover;302, mounting bracket;303, butt joint pole;304, limit plate;305, spring;306, pull cover. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be further explained in the following in connection with the drawings and specific embodiments. EMBODIMENT

[0023] As Figures 1-5 shown, the utility model provides a kind of hydraulic cylinder heat dissipation structure, including hydraulic cylinder main body 1, water injection cover 2 and connecting rod 3, the outside of hydraulic cylinder main body 1 is fixedly installed with heat dissipation fin 103, the outside of hydraulic cylinder main body 1 is fixedly installed with protective sleeve 101, one end of hydraulic cylinder main body 1 is butt-jointed and installed with water injection cover 2, one side of water injection cover 2 is fixedly installed with clamping cover 202, the inside of clamping cover 202 is limit installed with radiating pipe 203, the outside of water injection cover 2 is fixedly installed with connecting rod 3, the outside of protective sleeve 101 is fixedly installed with the butt joint cover 301 corresponding with connecting rod 3, the top of butt joint cover 301 is fixedly installed with mounting bracket 302, the inside of mounting bracket 302 is slidably installed with butt joint rod 303 extending to butt joint cover 301, protective sleeve 101 is provided with heat dissipation flow hole 102, one end of radiating pipe 203 and water injection cover 2 are communicated, the outside of clamping cover 202 is provided with sliding plate 204, heat dissipation fin 103 is provided with sliding groove 105 matched with sliding plate 204.

[0024] The working principle of the hydraulic cylinder heat dissipation structure based on example 1 is: by the butt joint of water injection cover 2 and the outside of hydraulic cylinder main body 1, clamping cover 202 can be installed between hydraulic cylinder main body 1 and protective sleeve 101, radiating pipe 203 can be installed inside sliding groove 105, cooling liquid is introduced into the inside of water injection cover 2 through water injection pipe 201, and is introduced into the inside of radiating pipe 203 through water injection cover 2, the outside of hydraulic cylinder main body 1 and the surface of heat dissipation flow hole 102 are attached by radiating pipe 203, so that the heat emitted by hydraulic cylinder main body 1 can be easily absorbed, and the use process can be more convenient, in the process of butt joint between water injection cover 2 and protective sleeve 101, one end of connecting rod 3 is deeply inserted into the inside of butt joint cover 301, by the extrusion of spring 305, one end of butt joint rod 303 is inserted into the inside of butt joint cover 301 and is butt jointed with connecting rod 3, so that connecting rod 3 can be limited during installation of protective sleeve 101. Example

[0025] As Figure 2 , Figure 3 and Figure 5 shown, the utility model provides a kind of hydraulic cylinder heat dissipation structure, compared with example one, this embodiment further includes: the outside of hydraulic cylinder main body 1 is provided with arc-shaped groove 104 matched with radiating pipe 203, water injection pipe 201 is fixedly installed at the top of water injection cover 2, limit plate 304 is fixedly installed outside butt joint rod 303 in the inside of mounting bracket 302, limit plate 304 is slidably installed between limit plate 304 and mounting bracket 302, spring 305 is sleeved on the outside of butt joint rod 303 in the inside of limit plate 304, pull cover 306 is fixedly installed at one end of butt joint rod 303, and anti-skid line is provided on the outside of pull cover 306.

[0026] In the embodiment, as shown in Figure 2 and Figure 3 , by mutual sliding between the sliding plate 204 and the sliding groove 105, the water injection jacket 2 and the protective jacket 101 can be more stable when being docked, convenient and fast in the installation process, and the deviation can be prevented. As shown in Figure 5 , by the limiting plate 304, the docking rod 303 can slide along the inside of the mounting frame 302 during movement, one end of the docking rod 303 can extend into the inside of the docking sleeve 301, and the limiting plate 304 can be pushed by the extrusion of the spring 305, which is more convenient in use. As shown in Figure 5 , by pulling the pulling sleeve 306, the docking rod 303 can be pulled conveniently, and the connection rod 3 and the docking sleeve 301 can be separated more conveniently.

[0027] The above specific embodiments are only several preferred embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A hydraulic cylinder heat dissipation structure, comprising a hydraulic cylinder body (1), a water injection jacket (2) and a connecting rod (3), characterized in that: The outer part of the hydraulic cylinder body (1) is fixedly installed with heat dissipation fins (103), the outer part of the hydraulic cylinder body (1) is fixedly installed with a protective sleeve (101), one end of the hydraulic cylinder body (1) is butt-jointedly installed with a water injection sleeve (2), one side of the water injection sleeve (2) is fixedly installed with a clamping sleeve (202), the inner part of the clamping sleeve (202) is limitingly installed with a heat dissipation pipe (203), the outer part of the water injection sleeve (2) is fixedly installed with a connecting rod (3), the outer part of the protective sleeve (101) is fixedly installed with a butt-joint sleeve (301) corresponding to the connecting rod (3), the top of the butt-joint sleeve (301) is fixedly installed with a mounting rack (302), and the inner part of the mounting rack (302) is slidingly installed with a butt-joint rod (303) extending into the butt-joint sleeve (301).

2. The hydraulic cylinder heat dissipation structure according to claim 1, characterized in that: The protective sleeve (101) is provided with a heat dissipation flow-through hole (102), and one end of the heat dissipation pipe (203) is communicated with the water injection sleeve (2).

3. The hydraulic cylinder heat dissipation structure according to claim 1, characterized in that: The outer part of the clamping sleeve (202) is provided with a sliding plate (204), and the heat dissipation fins (103) are provided with sliding grooves (105) matched with the sliding plate (204).

4. The hydraulic cylinder heat dissipation structure of claim 1, wherein: The outer part of the hydraulic cylinder body (1) is provided with arc-shaped grooves (104) matched with the heat dissipation pipe (203), and the top of the water injection sleeve (2) is fixedly installed with a water injection pipe (201).

5. The hydraulic cylinder heat dissipation structure of claim 1, wherein: The outer part of the butt-joint rod (303) in the inner part of the mounting rack (302) is fixedly installed with a limiting plate (304), the limiting plate (304) is slidingly installed between the mounting rack (302), and the outer part of the butt-joint rod (303) in the inner part of the limiting plate (304) is sleeved with a spring (305).

6. The hydraulic cylinder heat dissipation structure of claim 1, wherein: One end of the butt-joint rod (303) is fixedly installed with a pulling sleeve (306), and the outer part of the pulling sleeve (306) is provided with anti-skid lines. One end of the butt-joint rod (303) is fixedly installed with a pulling sleeve (306), and the outer part of the pulling sleeve (306) is provided with anti-skid lines.

Citation Information

Patent Citations

  • Self-heat-dissipation hydraulic oil cylinder

    CN220204238U