Hydraulic cylinder with protection structure

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By setting up an oil filter, heat dissipation layer and buffer mechanism in the hydraulic cylinder, the problems of poor heat dissipation, poor filtration effect and lack of protection mechanism in the existing hydraulic cylinder are solved, and effective protection and heat dissipation of the internal mechanism is achieved.

CN222542762UActive Publication Date: 2025-02-28KANGBAISHI ELECTROMECHANICAL SHANGHAI CO LTD

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Patent Information

Application Number: CN202323634270.1
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-29
Publication Date: 2025-02-28
Estimated Expiration: 2033-12-29

AI Technical Summary

Technical Problem

The heat dissipation mechanism of existing hydraulic cylinders is poor, and it is easy to cause high temperatures due to long-term working, causing damage to the internal mechanism. At the same time, the filtration effect is poor. Impurities in the hydraulic oil will damage the internal mechanism and a buffer mechanism is lacking to protect the internal mechanism.

Method used

A hydraulic cylinder with a protective structure is designed, including a fixed oil filter screen on the inside of the oil inlet and oil outlet, a heat dissipation layer on the outside to reduce the internal temperature of the cylinder, and a plurality of buffering mechanisms on the inside of the cylinder are provided to protect the internal mechanism.

Benefits of technology

The filter effectively filters impurities in the hydraulic oil to prevent damage to the internal mechanism; the heat dissipation layer effectively reduces the high temperature inside the cylinder and protects the internal mechanism; the buffering mechanism provides a buffering effect when the piston moves to protect the internal mechanism from damage.

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Abstract

The hydraulic cylinder with the protection structure comprises a cylinder barrel, an oil outlet is fixedly formed in the front end of the upper side of the cylinder barrel, an oil inlet is fixedly formed in the rear end of the upper side of the cylinder barrel, a protection layer is fixedly arranged on the inner side of the cylinder barrel, and a heat dissipation layer is fixedly arranged on the outer side of the protection layer. A first buffering mechanism is fixedly arranged at the rear end of the inner side of the cylinder barrel and comprises a fourth clamping block, a fifth clamping block is arranged at one end of the fourth clamping block in a clamped mode, and a second buffering mechanism is fixedly arranged at the front end of the inner side of the cylinder barrel and comprises a sixth clamping block. A piston rod is slidably arranged on the inner side of the second buffering mechanism, and a piston mechanism is fixedly arranged at one end of the piston rod. According to the utility model, the protection layer is convenient for protecting the internal mechanism, the heat dissipation layer mainly plays a role in dissipating heat for the internal mechanism, the buffer mechanism is convenient for protecting the internal mechanism through buffering, and the piston mechanism is convenient for piston movement.

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Description

Technical Field

[0001] The utility model relates to the technical field of cable brackets, in particular to a hydraulic cylinder with a protective structure. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of the piston and the pressure difference on both sides.

[0003] The existing hydraulic cylinder heat dissipation mechanism is poor. The mechanism is prone to generate high temperature when working for a long time, causing damage to the internal mechanism. At the same time, the filtering effect is not good. Impurities in the hydraulic oil will cause a certain degree of damage to the internal mechanism. It has no buffer mechanism and cannot protect the internal mechanism. Therefore, the technicians in this field provide a hydraulic cylinder with a protective structure to solve the problems raised in the above background technology. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a hydraulic cylinder with a protective structure. When the device is in use, oil filters are fixedly arranged on the inner sides of the oil inlet and the oil outlet to facilitate filtering of impurities in the hydraulic oil. The heat dissipation layer fixedly arranged on the outer side of the protective layer dissipates heat to the cylinder to a certain extent, thereby preventing the high temperature generated inside the cylinder when working from causing certain damage to the internal mechanism. Multiple buffer mechanisms are arranged for buffering, thereby providing a certain degree of protection to the internal mechanism through buffering.

[0005] Preferably, a hydraulic cylinder with a protective structure comprises a cylinder barrel, an oil outlet is fixedly provided at the front end of the upper side of the cylinder barrel, an oil inlet is fixedly provided at the rear end of the upper side of the cylinder barrel, a protective layer is fixedly provided at the inner side of the cylinder barrel, a heat dissipation layer is fixedly provided at the outer side of the protective layer, a first buffer mechanism is fixedly provided at the rear end of the inner side of the cylinder barrel, the first buffer mechanism comprises a fourth clamping block, and a fifth clamping block is clamped at one end of the fourth clamping block;

[0006] A second buffer mechanism is fixedly provided at the front end of the inner side of the cylinder barrel, the second buffer mechanism includes a sixth clamping block, a piston rod is slidably provided at the inner side of the second buffer mechanism, a piston mechanism is fixedly provided at one end of the piston rod, the piston mechanism includes a fixed block, a third clamping block is fixedly provided at one end of the fixed block, a second clamping block is clamped at one end of the third clamping block, and the first clamping block is clamped at the other end of the second clamping block. The cylinder barrel is convenient for installing the internal mechanism, the oil outlet and the oil inlet are convenient for conveying and outputting the hydraulic oil, the protective layer is convenient for protecting the internal mechanism, the heat dissipation layer mainly plays the role of dissipating heat for the internal mechanism, a plurality of clamping blocks are convenient for clamping setting, the buffer mechanism is convenient for protecting the internal mechanism through buffering, and the piston is convenient for piston movement.

[0007] Preferably, the sixth card block is clamped with the seventh card block at one end, a rubber ring is fixedly provided on the inner side of the sixth card block and one end of the seventh card block, the eighth card block is clamped with the eighth card block at one end, and the inner sides of the sixth card block, the rubber ring, the seventh card block and the eighth card block are all provided with a second slot. Multiple card blocks are convenient for clamping setting, and the rubber ring is convenient for buffering setting, thereby reducing damage to the internal mechanism through buffering.

[0008] Preferably, a plurality of first slots are provided inside the fifth clamping block, and a third spring is fixedly provided between the inner sides of the fourth clamping block and the fifth clamping block. The slots facilitate the transportation of hydraulic oil to the interior, and the spring facilitates the buffering setting.

[0009] Preferably, a second spring is fixedly arranged between one end of the second clamping block and the inner side of the third clamping block, so as to facilitate buffering arrangement by the spring.

[0010] Preferably, a first spring is fixedly arranged between the other end of the second clamping block and the first clamping block, so as to facilitate buffering by the spring arrangement.

[0011] Preferably, a cylinder cover is fixedly provided at the front end of the cylinder barrel, which mainly plays a sealing role.

[0012] Preferably, an oil filter is fixedly arranged inside the oil outlet and the oil inlet to facilitate filtering impurities in the hydraulic oil.

[0013] Preferably, a fourth spring is fixedly arranged between the other end of the seventh clamping block and the inner side of the eighth clamping block, so as to facilitate buffering through the spring arrangement.

[0014] The beneficial effects of the utility model are embodied in:

[0015] 1. When the device is in use, the hydraulic oil is transported to one end of the piston mechanism through the oil inlet, and the hydraulic oil at the other end of the piston mechanism is discharged through the oil outlet, so that the internal piston slides forward. Oil filters are fixedly arranged on the inner sides of the oil inlet and the oil outlet to filter impurities in the hydraulic oil and avoid damage to the internal mechanism. The protective layer fixedly arranged inside the cylinder is convenient for protecting the internal mechanism. The heat dissipation layer fixedly arranged outside the protective layer dissipates heat to the cylinder to a certain extent, so as to avoid certain damage to the internal mechanism caused by the high temperature generated inside the cylinder when the cylinder is working.

[0016] 2. When the device is in use, the first spring and the second spring fixed at both ends of the second clamping block inside the piston mechanism can buffer the mechanism when the piston moves. The first buffer mechanism fixed at one end of the inner side of the cylinder barrel allows the hydraulic oil to enter the inside of the mechanism through the third spring fixed inside and multiple slots. The slots are funnel-shaped, so that the hydraulic oil can enter the inside of the mechanism and the water pressure can be used to buffer the mechanism to a certain extent. The rubber ring fixed at the other end also has a certain degree of buffering effect on the piston mechanism when the piston moves through the rubber ring fixed inside and the fourth spring, and the internal mechanism is protected to a certain extent through the buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 An axonometric diagram provided for an embodiment of the utility model;

[0019] Figure 2 for Figure 1 The front section diagram shown;

[0020] Figure 3 for Figure 2 A schematic cross-sectional view of the piston mechanism shown;

[0021] Figure 4 for Figure 2 A schematic front cross-sectional view of the first buffer mechanism and the second buffer mechanism is shown.

[0022] In the accompanying drawings, 1-oil inlet, 2-cylinder, 3-oil outlet, 4-cylinder head, 5-piston rod, 6-first buffer mechanism, 601-fourth clamping block, 602-first slot, 603-fifth clamping block, 604-third spring, 7-filter, 8-heat dissipation layer, 9-protective layer, 10-piston mechanism, 1001-first clamping block, 1002-first spring, 1003-second clamping block, 1004-third clamping block, 1005-second spring, 1006-fixed block, 11-second buffer mechanism, 1101-sixth clamping block, 1102-rubber ring, 1103-seventh clamping block, 1104-eighth clamping block, 1105-fourth spring, 1106-second slot. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0024] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0025] A hydraulic cylinder with a protective structure comprises a cylinder barrel 2, which is convenient for installing more mechanisms inside, an oil outlet 3 is fixedly arranged at the front end of the upper side of the cylinder barrel 2, which is convenient for conveying and outputting the hydraulic oil, an oil inlet 1 is fixedly arranged at the rear end of the upper side of the cylinder barrel 2, which is convenient for conveying and outputting the hydraulic oil, a protective layer 9 is fixedly arranged on the inner side of the cylinder barrel 2, which is mainly made of steel material, which is convenient for protecting the internal mechanism, a heat dissipation layer 8 is fixedly arranged on the outer side of the protective layer 9, which is mainly made of graphite material, which is convenient for heat dissipation of the internal mechanism, a first buffer mechanism 6 is fixedly arranged at the rear end of the inner side of the cylinder barrel 2, which is convenient for buffering setting, the first buffer mechanism 6 comprises a fourth clamping block 601, which is convenient for clamping setting, and a fifth clamping block 603 is clamped at one end of the fourth clamping block 601, which is convenient for clamping setting;

[0026] A second buffer mechanism 11 is fixedly arranged at the front end of the inner side of the cylinder 2, which mainly plays a buffering role. The second buffer mechanism 11 includes a sixth clamping block 1101, which is convenient for clamping setting. A piston rod 5 is slidably arranged inside the second buffer mechanism 11, which is convenient for fixed connection setting. A piston mechanism 10 is fixedly arranged at one end of the piston rod 5, which is convenient for piston movement. The piston mechanism 10 includes a fixed block 1006, which makes the connection between the mechanisms more stable. A third clamping block 1004 is fixedly arranged at one end of the fixed block 1006, which is convenient for clamping setting. The second clamping block 1003 is clamped at one end of the third clamping block 1004, which is convenient for clamping setting. The second clamping block 1003 is clamped with the first clamping block 1001 at the other end, which is convenient for clamping setting. The sixth clamping block 1101 is clamped with the seventh clamping block 1103 at one end, which is convenient for clamping setting. The inner side of the sixth clamping block 1101 and one end of the seventh clamping block 1103 are fixedly provided with a rubber ring 1102, which is convenient for buffering setting. The eighth clamping block 1104 is clamped with one end of the seventh clamping block 1103, which is convenient for clamping setting. The inner sides of the sixth clamping block 1101, the rubber ring 1102, the seventh clamping block 1103 and the eighth clamping block 1104 are all provided with a second slot 1106, which is convenient for placing the piston rod 5.

[0027] A plurality of first slots 602 are provided on the inner side of the fifth block 603 to facilitate the transportation of hydraulic oil to the interior; a third spring 604 is fixedly arranged between the inner sides of the fourth block 601 and the fifth block 603 to facilitate buffering by the spring setting; a second spring 1005 is fixedly arranged between one end of the second block 1003 and the inner side of the third block 1004 to facilitate buffering by the spring setting; a first spring 1002 is fixedly arranged between the other end of the second block 1003 and the first block 1001 to facilitate buffering by the spring setting; a cylinder cover 4 is fixedly arranged at the front end of the cylinder barrel 2 to facilitate sealing the cylinder barrel 2; an oil filter 7 is fixedly arranged on the inner sides of the oil outlet 3 and the oil inlet 1 to facilitate filtering impurities in the hydraulic oil; a fourth spring 1105 is fixedly arranged between the other end of the seventh block 1103 and the inner side of the eighth block 1104 to facilitate buffering by the spring setting.

[0028] Working principle: When the device is in use, the hydraulic oil is transported to one end of the piston mechanism 10 through the oil inlet 1, and the oil outlet 3 discharges the hydraulic oil at the other end of the piston mechanism 10, so that the piston mechanism 10 moves forward, and vice versa. The filter screen 7 fixedly arranged inside the oil inlet 1 and the oil outlet 3 is convenient for filtering impurities in the hydraulic oil. The protective layer 9 on the inner side of the cylinder 2 plays a protective role. The heat dissipation layer 8 fixedly arranged on the outer side is convenient for heat dissipation of the internal mechanism. The first buffer mechanism 6 fixedly arranged at one end of the inner side plays a buffering role through the third spring 604 fixedly arranged inside and the multiple first slots 602 opened. The first slots 602 are convenient for transporting hydraulic oil to the inside, so that the water pressure is used for buffering when the piston moves. The second buffer mechanism 11 fixedly arranged at the other end plays a buffering role through the rubber ring 1102 and the fourth spring 1105 fixedly arranged inside, and the internal mechanism is protected by the buffering effect.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A hydraulic cylinder with a protective structure, comprising a cylinder barrel (2), characterized in that: An oil outlet (3) is fixedly provided at the front end of the upper side of the cylinder barrel (2), an oil inlet (1) is fixedly provided at the rear end of the upper side of the cylinder barrel (2), a protective layer (9) is fixedly provided on the inner side of the cylinder barrel (2), a heat dissipation layer (8) is fixedly provided on the outer side of the protective layer (9), a first buffer mechanism (6) is fixedly provided at the rear end of the inner side of the cylinder barrel (2), the first buffer mechanism (6) comprises a fourth clamping block (601), and a fifth clamping block (603) is clamped at one end of the fourth clamping block (601); A second buffer mechanism (11) is fixedly arranged at the front end of the inner side of the cylinder barrel (2), the second buffer mechanism (11) comprises a sixth clamping block (1101), a piston rod (5) is slidably arranged inside the second buffer mechanism (11), one end of the piston rod (5) is fixedly arranged with a piston mechanism (10), the piston mechanism (10) comprises a fixed block (1006), one end of the fixed block (1006) is fixedly arranged with a third clamping block (1004), one end of the third clamping block (1004) is clamped with a second clamping block (1003), and the other end of the second clamping block (1003) is clamped with the first clamping block (1001).

2. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: The sixth clamping block (1101) is clamped with a seventh clamping block (1103) at one end, a rubber ring (1102) is fixedly arranged on the inner side of the sixth clamping block (1101) and on one end of the seventh clamping block (1103), an eighth clamping block (1104) is clamped with one end of the seventh clamping block (1103), and a second slot (1106) is provided on the inner sides of the sixth clamping block (1101), the rubber ring (1102), the seventh clamping block (1103) and the eighth clamping block (1104).

3. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A plurality of first slots (602) are provided on the inner side of the fifth clamping block (603), and a third spring (604) is fixedly provided between the inner sides of the fourth clamping block (601) and the fifth clamping block (603).

4. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A second spring (1005) is fixedly arranged between one end of the second clamping block (1003) and the inner side of the third clamping block (1004).

5. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A first spring (1002) is fixedly arranged between the other end of the second clamping block (1003) and the first clamping block (1001).

6. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A cylinder cover (4) is fixedly arranged at the front end of the cylinder barrel (2).

7. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: An oil filter (7) is fixedly arranged inside the oil outlet (3) and the oil inlet (1).

8. The hydraulic cylinder with a protective structure according to claim 2, characterized in that: A fourth spring (1105) is fixedly arranged between the other end of the seventh clamping block (1103) and the inner side of the eighth clamping block (1104).