Hydraulic oil cylinder with protective device

Abstract

The utility model belongs to the technical field of hydraulic oil cylinders, and particularly relates to a hydraulic oil cylinder with a protection device, which comprises a hydraulic oil cylinder body and a protection mechanism arranged on the outer side of the hydraulic oil cylinder body, and the protection mechanism comprises a dustproof unit and a protection unit. The dustproof unit comprises a connecting base, a dustproof cover, a connecting port and an internal thread, an external thread is formed in the outer side corresponding to the output end of the hydraulic oil cylinder body, the internal thread is formed in the inner side of the connecting base, the connecting base is in threaded connection to the outer side corresponding to the output end of the hydraulic oil cylinder body, and one end of the dustproof cover is fixedly connected to the connecting base. According to the hydraulic oil cylinder with the protection device, the contact area of the hydraulic oil cylinder body and air is increased through the annular cooling fins arranged on the outer side of the hydraulic oil cylinder body at equal intervals, air flow around the hydraulic oil cylinder body is accelerated in a forced convection mode of the cooling fan, and the cooling efficiency is further improved; and the stable performance of the hydraulic oil cylinder under long-time working is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil cylinder technical field, concretely is a hydraulic oil cylinder with protection device. BACKGROUND

[0002] Hydraulic oil cylinder is the execution element in hydraulic transmission system, it is the energy conversion device that converts hydraulic energy into mechanical energy, and the hydraulic oil cylinder realizes reciprocating motion, and the hydraulic oil cylinder can be combined or used with other mechanisms to complete special functions in addition to being used individually, and the hydraulic cylinder is simple in structure and reliable in operation, and is widely used in the hydraulic system of machine tool.

[0003] The Chinese patent with the publication number CN216666094U discloses a hydraulic oil cylinder with a protection device, which comprises a base, a fixed plate fixedly connected to the base, and a hydraulic oil cylinder body.

[0004] The above technical solution has the following defects: the device mainly relies on heat dissipation holes and telescopic nets for passive heat dissipation, and lacks an active heat dissipation mechanism. When the hydraulic oil cylinder works for a long time or runs under high load, passive heat dissipation may not meet its heat dissipation requirements, resulting in continuous increase of oil temperature, which ultimately affects the performance and service life of the hydraulic oil cylinder.

[0005] Therefore, we propose a hydraulic oil cylinder with a protection device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a hydraulic oil cylinder with a protection device to solve the problem of insufficient heat dissipation effect of the hydraulic oil cylinder body mentioned in the background.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a hydraulic oil cylinder with a protection device, comprising a hydraulic oil cylinder body and a protection mechanism arranged outside the hydraulic oil cylinder body, wherein the protection mechanism comprises a dustproof unit and a protection unit.

[0008] The dustproof unit comprises a connecting base, a dust cover, a connecting port and an internal thread, the external side corresponding to the output end of the hydraulic oil cylinder body is provided with an external thread, the internal thread is arranged on the inner side of the connecting base, the connecting base is threadedly connected to the external side corresponding to the output end of the hydraulic oil cylinder body, one end of the dust cover is fixedly connected to the connecting base, the other end of the dust cover is fixedly connected to the connecting port, and the connecting port is fixedly connected to the piston rod of the hydraulic oil cylinder through a tie.

[0009] Preferably, the protection unit includes a protective cover, a connecting strip, a thread, a locking nut, a cooling fan, a cooling hole and a dust screen, the protective cover is arranged outside the hydraulic oil cylinder body, the connecting strip is fixedly connected to the right side of the protective cover, the thread is arranged at the outer end of the connecting strip, the connecting base is provided with a through hole outside, the connecting strip penetrates through the through hole and is fixed by the locking nut, the cooling fan is fixedly connected to the left side of the protective cover, the dust screen is fixedly connected to the left side of the cooling fan, and the cooling hole is arranged at the bottom of the protective cover.

[0010] Preferably, the dust cover is a telescopic cover, so that the dust cover can adapt to the telescopic action of the hydraulic oil cylinder piston rod and does not affect the normal work of the piston rod.

[0011] Preferably, a plurality of equidistant annular fins are arranged outside the hydraulic oil cylinder body, the plurality of equidistant annular fins increase the contact area of the hydraulic oil cylinder body and air, and improve the heat dissipation efficiency.

[0012] Preferably, the cooling fan is a low-noise and high-efficiency axial flow fan, and the cooling fan accelerates the air flow around the hydraulic oil cylinder body through forced convection, thereby improving the heat dissipation efficiency.

[0013] Preferably, the dust screen is woven from stainless steel material, and the dust screen effectively blocks the external dust and sundries from entering the inside of the cooling fan and the protective cover, thereby protecting the cleanliness of the cooling system and the hydraulic oil cylinder.

[0014] Preferably, the material of the protective cover is selected from light and high-strength alloy materials, which can ensure sufficient strength and rigidity and reduce the overall weight. The material has good corrosion resistance, impact resistance and wear resistance, and can maintain the integrity and use performance of the protective cover for a long time.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The hydraulic oil cylinder with the protection device, the plurality of equidistant annular fins arranged outside the hydraulic oil cylinder body increase the contact area of the hydraulic oil cylinder body and air, the air flow around the hydraulic oil cylinder body is accelerated through the forced convection of the cooling fan, the heat dissipation efficiency is further improved, and the stability of the hydraulic oil cylinder under long-time work is ensured.

[0017] 2. The hydraulic cylinder with the protection device, the dust screen is woven by stainless steel material, has good corrosion resistance and strength, can keep its filtering effect for a long time, and effectively prevents external dust and sundries from entering the inside of the heat dissipation fan and the protective cover. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a hydraulic cylinder protection device split structure;

[0019] Figure 2 The utility model discloses a whole front structure of unfolding;

[0020] Figure 3 The utility model discloses a whole back split structure;

[0021] Figure 4 The utility model discloses a whole front structure.

[0022] In the drawing: 1 protective cover, 101 connecting strip, 102 screw thread, 103 locking nut, 104 heat dissipation fan, 105 heat dissipation hole, 106 dust screen, 2 connecting base, 201 dust cover, 202 connecting port, 203 internal screw thread, 3 hydraulic cylinder body, 301 external screw thread, 4 annular heat dissipation fin. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0024] In order to solve the problem that a large amount of heat is accumulated due to friction and energy conversion during the working process of the hydraulic cylinder, if the heat accumulation is not properly handled, it may cause adverse effects on the structural stability and operating efficiency of the hydraulic cylinder, and further shorten its service life. In order to effectively protect the hydraulic cylinder body from damage by the external environment while realizing efficient heat dissipation function, please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of hydraulic cylinder with protection device, including hydraulic cylinder body 3 and the protection mechanism of setting in the outer side of hydraulic cylinder body 3, protection mechanism includes dust prevention unit and protection unit;

[0025] The protection unit comprises a protection cover 1, a connecting strip 101, a thread 102, a locking nut 103, a heat dissipation fan 104, a heat dissipation hole 105 and a dustproof net 106. The protection cover 1 is arranged outside the hydraulic cylinder body 3. The material of the protection cover 1 is selected to be a light and high-strength alloy material, so that the protection cover 1 is light and firm, and can effectively protect the hydraulic cylinder body from external physical damage. The connecting strip 101 is fixedly connected to the right side of the protection cover 1. The thread 102 is arranged at the outer end of the connecting strip 101. A through hole is arranged outside the connecting base 2. The connecting strip 101 penetrates through the through hole and is fixed by the locking nut 103. The protection cover 1 can be conveniently installed and removed through the thread 102 and the locking nut 103, and is stably fixed on the connecting base 2. The heat dissipation fan 104 is fixedly connected to the left side of the protection cover 1. The heat dissipation fan 104 is a low-noise and high-efficiency axial flow fan, which can effectively take away the heat generated by the hydraulic cylinder without generating too much noise, and help the hydraulic cylinder dissipate heat. The dustproof net 106 is fixedly connected to the left side of the heat dissipation fan 104. The dustproof net 106 is woven from stainless steel material, which can effectively block dust and other impurities from entering the inside of the heat dissipation fan and the protection cover 1. The heat dissipation hole 105 is arranged at the bottom of the protection cover 1, which can further promote heat dissipation and increase the heat dissipation efficiency. A plurality of equidistant annular heat dissipation fins 4 are arranged outside the hydraulic cylinder body 3, which can increase the heat dissipation area of the hydraulic cylinder and improve the heat dissipation efficiency. Embodiment

[0026] On the basis of the first embodiment, in order to more effectively block dust, moisture and other harmful impurities from entering the inside of the hydraulic cylinder body, thereby causing potential damage or affecting the normal operation of the hydraulic cylinder, a dustproof unit is further arranged on the device. The dustproof unit comprises a connecting base 2, a dustproof cover 201, a connecting port 202 and an internal thread 203. An external thread 301 is arranged on the outside corresponding to the output end of the hydraulic cylinder body 3. The internal thread 203 is arranged on the inside of the connecting base 2. The connecting base 2 is threadedly connected to the outside corresponding to the output end of the hydraulic cylinder body 3. One end of the dustproof cover 201 is fixedly connected to the connecting base 2. The other end of the dustproof cover 201 is fixedly connected to the connecting port 202. The connecting port 202 is fixedly connected to the piston rod of the hydraulic cylinder by a tie. Dust, moisture and other impurities can be effectively prevented from entering the inside of the hydraulic cylinder. The dustproof cover 201 is a telescopic cover, which can adapt to the telescopic movement of the piston rod of the hydraulic cylinder, while keeping the protection of the output end of the hydraulic cylinder.

[0027] Working principle: the connecting base 2 is screwed to the corresponding outside of the output end of the hydraulic cylinder body 3, and the connecting port 202 is fixed to the piston rod of the hydraulic cylinder by a tie. The protective cover 1 is fixed on the connecting base 2 by the connecting strip 101, the screw 102 and the locking nut 103. After ensuring that the hydraulic cylinder and the protective device are installed correctly, the hydraulic cylinder is started to work. During the working process of the hydraulic cylinder, the cooling fan 104 is started. The cooling fan 104 is a low-noise and high-efficiency axial fan, which can effectively take away the heat generated by the hydraulic cylinder and help the hydraulic cylinder dissipate heat. At the same time, the cooling hole 105 and the annular cooling fin 4 further increase the cooling area and efficiency. The dust screen 106 is woven from stainless steel material, which can effectively block dust and other impurities from entering the inside of the cooling fan and the protective cover 1. The dust cover 201 is a telescopic cover, which can adapt to the extension and retraction movement of the piston rod of the hydraulic cylinder, while keeping the protection of the output end of the hydraulic cylinder, preventing dust, moisture and other impurities from entering the inside of the hydraulic cylinder.

[0028] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A hydraulic cylinder with a protection device, comprising a hydraulic cylinder body (3) and a protection mechanism arranged outside the hydraulic cylinder body (3), characterized in that: The protection mechanism comprises a dustproof unit and a protection unit; The protection unit comprises a protection cover (1), a connecting strip (101), a screw thread (102), a locking nut (103), a heat dissipation fan (104), a heat dissipation hole (105) and a dust screen (106), the protection cover (1) is arranged on the outer side of the hydraulic oil cylinder body (3), the connecting strip (101) is fixedly connected to the right side of the protection cover (1), the screw thread (102) is arranged on the outer end of the connecting strip (101), a through hole is arranged on the outer side of the connecting base (2), the connecting strip (101) penetrates through the through hole and is fixed by the locking nut (103), the heat dissipation fan (104) is fixedly connected to the left side of the protection cover (1), the dust screen (106) is fixedly connected to the left side of the heat dissipation fan (104), and the heat dissipation hole (105) is arranged on the bottom of the protection cover (1).

2. A hydraulic cylinder with a guard according to claim 1, characterized in that: The dustproof unit comprises a connecting base (2), a dustproof cover (201), a connecting port (202) and an inner screw thread (203), an outer screw thread (301) is arranged on the outer side corresponding to the output end of the hydraulic oil cylinder body (3), the inner screw thread (203) is arranged on the inner side of the connecting base (2), the connecting base (2) is screw-connected to the outer side corresponding to the output end of the hydraulic oil cylinder body (3), one end of the dustproof cover (201) is fixedly connected to the connecting base (2), the other end of the dustproof cover (201) is fixedly connected to the connecting port (202), and the connecting port (202) is fixedly connected to the piston rod of the hydraulic oil cylinder by a tie.

3. A hydraulic ram with a protective device according to claim 2, characterized in that: The dustproof cover (201) is a telescopic cover.

4. The hydraulic cylinder with a guard as defined in claim 1, wherein: A plurality of equidistant annular heat dissipation fins (4) are arranged on the outer side of the hydraulic oil cylinder body (3).

5. The hydraulic cylinder with a protective device according to claim 1, characterized in that: The heat dissipation fan (104) is a low-noise axial flow fan.

6. The hydraulic cylinder with a protective device according to claim 1, characterized in that: The dust screen (106) is woven from stainless steel.

7. The hydraulic cylinder with a protective device according to claim 1, characterized in that: The protection cover (1) is made of light high-strength alloy material.

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