A high temperature resistant hydraulic cylinder

Abstract

The utility model relates to a kind of high-temperature-resistant hydraulic cylinder, belong to hydraulic cylinder technical field, including cylinder body, the telescopic end of cylinder body is equipped with telescopic rod;Cooling structure is provided on the cylinder body.Through setting cooling structure, start compressor, make it produce cold air, cold air is discharged into annular hollow pipe, to cool annular hollow pipe, to realize the purpose of the continuous cooling of cylinder body, cold air after heating is discharged into air pipe, however by air pipe is discharged into air ring, for the cooling of telescopic rod, and cold air after heating continuously passes through the gap between air ring and telescopic rod and is discharged, help to avoid the pressure increase in annular hollow pipe and air ring, in addition, through the setting of compressor cold air production, realizes the purpose of cooling structure cooling capacity control, reaches the effect that its high-temperature-resistant ability is flexibly adjusted according to the temperature change of actual working environment, for satisfying the use demand under complex high-temperature scene.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and specifically to a high-temperature resistant hydraulic cylinder. Background Technology

[0002] Hydraulic cylinders are actuators that convert hydraulic energy into mechanical energy. They are mainly used to achieve linear reciprocating motion or oscillating motion and are widely used in fields such as engineering machinery, metallurgy, shipbuilding, and aerospace. Currently, in order to adapt to high-temperature environments, hydraulic cylinders often adopt the method of improving their own materials to achieve high-temperature resistance, such as using high-temperature resistant materials to manufacture parts. However, this method of relying solely on material improvement not only has limited high-temperature resistance, but also cannot flexibly adjust its high-temperature resistance according to the temperature changes of the actual working environment, making it difficult to meet the usage requirements in complex high-temperature scenarios. To address the aforementioned problems, this application proposes a high-temperature resistant hydraulic cylinder. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a high-temperature resistant hydraulic cylinder.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a high-temperature resistant hydraulic cylinder, including a cylinder body, wherein a telescopic rod is installed at the telescopic end of the cylinder body; The cylinder body is equipped with a cooling structure; The cooling structure includes a compressor and an annular hollow tube sleeved on the cylinder body. An exhaust pipe is installed at the output end of the compressor, and the output end of the exhaust pipe is connected to the interior of the annular hollow tube. The annular hollow tube is connected to an air outlet pipe, and an air outlet ring is installed at the output end of the air outlet pipe. The air outlet ring is movably sleeved on the outside of the telescopic rod, and the inside of one end of the air outlet ring is not in contact with the outside of the telescopic rod. The cylinder body is equipped with a lubrication structure.

[0005] The lubrication structure includes an oil hopper, and an oil pipe is installed at the lower end of the oil hopper. The lower end of the oil pipe is connected to the interior of the air outlet ring. By setting up the lubrication structure, the lubricant in the oil hopper flows out through the oil pipe for the purpose of lubricating the telescopic rod.

[0006] The cylinder body is equipped with a mounting plate, and the oil hopper is also mounted on the mounting plate. By setting up the mounting plate, the cylinder body is supported.

[0007] A sponge ring is detachably installed on the air outlet ring, and the lower oil end of the lower oil pipe contacts the outer side of the sponge ring. The sponge ring is used to wipe the telescopic rod with lubricating oil.

[0008] One end of the air outlet ring has an annular groove, and the sponge ring is placed in the annular groove. A positioning ring is detachably installed on the air outlet ring, and a screw is inserted into the positioning ring. The screw is threadedly connected to the positioning ring. The sponge ring is located between the positioning ring and the air outlet ring. By setting the annular groove, the positioning ring, and the screw, it is easy to assemble and disassemble the sponge ring.

[0009] The top of the oil hopper is connected to an oil injection pipe, and the input end of the oil injection pipe is threaded with a sealing cap. By setting up the oil injection pipe and the sealing cap, it is convenient to inject lubricating oil into the oil hopper.

[0010] The beneficial effects of this utility model are: By setting up a cooling structure and starting the compressor, cold air is generated and discharged into the annular hollow tube, thereby cooling the annular hollow tube and achieving the purpose of continuous cooling of the cylinder. The heated cold air is discharged into the exhaust pipe and then into the exhaust ring to cool the telescopic rod. The heated cold air is continuously discharged through the gap between the exhaust ring and the telescopic rod, which helps to prevent the air pressure in the annular hollow tube and the exhaust ring from rising. In addition, by setting the amount of cold air produced by the compressor, the cooling capacity of the cooling structure can be controlled, achieving the effect of flexibly adjusting its high-temperature resistance according to the temperature changes of the actual working environment, so as to meet the usage requirements in complex high-temperature scenarios.

[0011] By setting up a lubrication structure, lubricating oil is discharged into the lower oil pipe through the oil hopper, and then discharged through the lower oil pipe, achieving the effect of lubricating the telescopic rod. This quickly solves the problems of condensation of water vapor into liquid water caused by temperature difference, which leads to rust on the telescopic rod and water droplet penetration into the hydraulic oil, thus helping to isolate moisture to prevent rust, protect the seals to extend their lifespan, and form a long-lasting protective layer. Attached Figure Description

[0012] Figure 1 This is a schematic diagram illustrating the overall structure of the device. Figure 2 This utility model is presented as a schematic diagram illustrating the structure of the gas ring and its related parts; Figure 3 This utility model is a schematic diagram illustrating the structure of an oil hopper and its related parts; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0013] The attached diagram lists the components represented by each number as follows: 1. Cylinder block; 101. Telescopic rod; 2. Cooling structure; 201. Annular hollow tube; 202. Compressor; 203. Exhaust pipe; 204. Exhaust ring; 205. Exhaust pipe; 3. Lubrication structure; 301. Oil hopper; 302. Mounting plate; 303. Lower oil pipe; 304. Annular groove; 305. Sponge ring; 306. Positioning ring; 307. Screw; 308. Oil injection pipe; 309. Sealing cap. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0016] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0017] Reference Figure 1-4A high-temperature resistant hydraulic cylinder includes a cylinder body 1. A telescopic rod 101 is installed at the telescopic end of the cylinder body 1. A cooling structure 2 is provided on the cylinder body 1. The cooling structure 2 includes a compressor 202 and an annular hollow tube 201 sleeved on the cylinder body 1. An exhaust pipe 205 is installed at the output end of the compressor 202. The output end of the exhaust pipe 205 is connected to the interior of the annular hollow tube 201. An air outlet pipe 203 is connected to the annular hollow tube 201. An air outlet ring 204 is installed at the output end of the air outlet pipe 203. The air outlet ring 204 is movably sleeved on the outside of the telescopic rod 101. One end of the air outlet ring 204 is not in contact with the outside of the telescopic rod 101. According to the above technical solution, specifically, by starting the compressor 202, it generates cold air, and the cold air is discharged into the annular hollow tube 201 through the exhaust pipe 205. The annular hollow tube 201 is cooled to achieve continuous cooling of the cylinder 1. At this time, the cold air in the annular hollow tube 201 neutralizes the heat generated by the cylinder 1 and the heat in the external environment. The heated cold air is discharged into the exhaust pipe 203 and then into the exhaust ring 204 to cool the telescopic rod 101. The heated cold air is continuously discharged through the gap between the exhaust ring 204 and the telescopic rod 101, which helps to prevent the air pressure in the annular hollow tube 201 and the exhaust ring 204 from rising. In addition, by setting the cold air output of the compressor 202, the cooling capacity of the cooling structure 2 is controlled, and its high temperature resistance can be flexibly adjusted according to the temperature changes of the actual working environment to meet the needs of use in complex high temperature scenarios. The compressor 202 is a model MDB400S manufactured by McQuay Air Conditioning & Refrigeration (Wuhan) Co., Ltd.

[0018] Reference Figure 1 and Figure 2 The cylinder body 1 is provided with a lubrication structure 3, which includes an oil hopper 301. The lower end of the oil hopper 301 is equipped with a lower oil pipe 303. The lower end of the lower oil pipe 303 is connected to the interior of the air outlet ring 204. The oil hopper 301 is used to load lubricating oil. The lubricating oil is discharged into the lower oil pipe 303 through the oil hopper 301 and then discharged through the lower oil pipe 303. This achieves the effect of lubricating the telescopic rod 101, quickly solving the problems of condensation of water vapor into liquid water caused by temperature difference, which leads to corrosion of the telescopic rod 101 and water droplet penetration into the hydraulic oil. It helps to isolate moisture to prevent rust, protect the seals to extend their service life, and form a long-lasting protective layer.

[0019] Reference Figure 2 and Figure 3 A mounting plate 302 is installed on the cylinder body 1, and an oil hopper 301 is installed on the mounting plate 302. The presence of the mounting plate 302 is used to support and fix the oil hopper 301.

[0020] Reference Figure 2 A sponge ring 305 is detachably installed on the air outlet ring 204. The lower oil end of the lower oil pipe 303 is in contact with the outer side of the sponge ring 305. The lubricating oil discharged from the lower oil pipe 303 first wets the sponge ring 305, and the sponge ring 305 wipes the outer side of the telescopic rod 101 with the help of the lubricating oil.

[0021] Reference Figure 2 An annular groove 304 is provided at one end of the air outlet ring 204. The sponge ring 305 is placed in the annular groove 304. A positioning ring 306 is detachably installed on the air outlet ring 204. A screw 307 is inserted into the positioning ring 306 and is threadedly connected to the positioning ring 306. The sponge ring 305 is located between the positioning ring 306 and the air outlet ring 204. The sponge ring 305 is placed in the annular groove 304 and the position of the sponge ring 305 is fixed by the screw 307, which achieves the effect of facilitating the disassembly and replacement of the sponge ring 305.

[0022] Reference Figure 2 The top of the oil hopper 301 is connected to an oil injection pipe 308. The input end of the oil injection pipe 308 is threaded with a sealing cap 309. The oil injection pipe 308 facilitates the injection of lubricating oil into the oil hopper 301. The sealing cap 309 is used to cover the top of the oil injection pipe 308.

[0023] Working principle: This high-temperature resistant hydraulic cylinder, by starting the compressor 202, generates cold air, which is then discharged into the annular hollow tube 201 through the exhaust pipe 205, thereby cooling the annular hollow tube 201 and achieving the purpose of continuous cooling of the cylinder body 1. At this time, the cold air in the annular hollow tube 201 neutralizes the heat generated by the cylinder body 1 and the heat in the external environment. The heated cold air is discharged into the exhaust pipe 203, and then into the exhaust ring 204 to cool the telescopic rod 101. The heated cold air is continuously discharged through the gap between the exhaust ring 204 and the telescopic rod 101, which helps to prevent the air pressure in the annular hollow tube 201 and the exhaust ring 204 from rising. In addition, by setting the cold air output of the compressor 202, the cooling capacity of the cooling structure 2 is controlled, achieving the effect of flexibly adjusting its high-temperature resistance according to the temperature changes of the actual working environment, so as to meet the usage requirements in complex high-temperature scenarios.

[0024] In this high-temperature resistant hydraulic cylinder, lubricating oil is discharged into the lower oil pipe 303 through the oil hopper 301 and then discharged through the lower oil pipe 303, achieving the effect of lubricating the telescopic rod 101. This quickly solves the problems of water vapor condensing into liquid water due to heat exchange caused by temperature difference, which causes corrosion of the telescopic rod 101 and water droplet penetration into the hydraulic oil, thus helping to isolate moisture to prevent rust, protect the seals to extend their service life, and form a long-lasting protective layer.

[0025] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-temperature resistant hydraulic cylinder, comprising a cylinder body (1), characterized in that, The cylinder body (1) is equipped with a telescopic rod (101) at its telescopic end. The cylinder (1) is provided with a cooling structure (2); The cooling structure (2) includes a compressor (202) and an annular hollow tube (201) sleeved on the cylinder (1). The output end of the compressor (202) is equipped with an exhaust pipe (205), and the output end of the exhaust pipe (205) is connected to the interior of the annular hollow tube (201). The annular hollow tube (201) is connected to an air outlet pipe (203), and an air outlet ring (204) is installed at the output end of the air outlet pipe (203). The air outlet ring (204) is movably sleeved on the outside of the telescopic rod (101), and the inside of one end of the air outlet ring (204) is not in contact with the outside of the telescopic rod (101). The cylinder (1) is provided with a lubrication structure (3).

2. The high-temperature resistant hydraulic cylinder according to claim 1, characterized in that, The lubrication structure (3) includes an oil hopper (301), and an oil pipe (303) is installed at the lower oil end of the oil hopper (301). The lower oil end of the oil pipe (303) is connected to the interior of the air outlet ring (204).

3. A high-temperature resistant hydraulic cylinder according to claim 2, characterized in that, The cylinder (1) is mounted with an mounting plate (302), and the oil hopper (301) is mounted on the mounting plate (302).

4. A high-temperature resistant hydraulic cylinder according to claim 2, characterized in that, A sponge ring (305) is detachably installed on the vent ring (204), and the lower oil end of the lower oil pipe (303) is in contact with the outer side of the sponge ring (305).

5. A high-temperature resistant hydraulic cylinder according to claim 4, characterized in that, One end of the air outlet ring (204) is provided with an annular groove (304), and the sponge ring (305) is placed in the annular groove (304). A positioning ring (306) is detachably installed on the air outlet ring (204), and a screw (307) is inserted into the positioning ring (306). The screw (307) is threadedly connected to the positioning ring (306), and the sponge ring (305) is located between the positioning ring (306) and the air outlet ring (204).

6. A high-temperature resistant hydraulic cylinder according to claim 2, characterized in that, The top of the oil hopper (301) is connected to an oil injection pipe (308), and the input end of the oil injection pipe (308) is threadedly connected to a sealing cap (309).

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