High-temperature-resistant water-cooling air cylinder

Abstract

The utility model discloses a high-temperature-prevention water-cooling air cylinder, belongs to the technical field of air cylinders, and solves the problem that a sealing ring of an existing air cylinder is easy to damage in a high-temperature environment. The water-cooling air cylinder comprises a cylinder barrel, a piston is movably arranged in the cylinder barrel, a piston rod movably connected with the cylinder barrel in an inserted mode is arranged on the piston, a sealing ring is arranged between the piston rod and the cylinder barrel, a dustproof sleeve is arranged at the end, close to the piston rod, of the cylinder barrel, and the piston rod is movably connected with the dustproof sleeve in an inserted mode. The outer side of the dustproof sleeve is sleeved with a cooling sleeve, a first cooling cavity is formed in the cooling sleeve in a surrounding mode, and the cooling sleeve is provided with a first water inlet and a first water outlet which are communicated with the first cooling cavity. The high-temperature-prevention water-cooling air cylinder has the advantages of being good in heat dissipation performance, capable of reducing the temperature of the sealing ring and effectively prolonging the service life of the air cylinder, wide in application range and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders, in particular to a high-temperature resistant water-cooled cylinder. Background Art

[0002] In the production process of steel rolling, cylinders are required to stop billets on the charging table of the heating furnace. Since the temperature of the billets is relatively high, generally around 900 °C, when the high-temperature billets approach, the seals of the cylinders are likely to be damaged. Moreover, since the cylinders rely on the movement of the piston rods, certain heat will also be generated during use. The combined heat of the two makes the heat on the outer wall of the cylinders too high, and the cylinders are prone to cracking. At the same time, because they are installed on the roller paths for transporting steel billets, there is a lot of dust, which easily contaminates the position between the piston rods and the seals, leading to a short service life of the cylinders. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a high-temperature resistant water-cooled cylinder with good heat dissipation performance, which can reduce the temperature of the seals, effectively extend the service life of the cylinders, and has the characteristics of wide application range and strong practicability in view of the above deficiencies of the prior art.

[0004] The technical solution adopted by the utility model is: a high-temperature resistant water-cooled cylinder, including a cylinder barrel. A piston is movably arranged inside the cylinder barrel. A piston rod that is movably inserted into the cylinder barrel is arranged on the piston. A seal ring is arranged between the piston rod and the cylinder barrel. A dust-proof sleeve is arranged at one end of the cylinder barrel close to the piston rod. The piston rod is movably inserted into the dust-proof sleeve. A cooling sleeve is sleeved outside the dust-proof sleeve. A first cooling cavity arranged in a surrounding manner is opened inside the cooling sleeve. A first water inlet and a first water outlet that are communicated with the first cooling cavity are opened on the cooling sleeve.

[0005] As a further improvement, a second cooling cavity arranged in a surrounding manner is opened on the cylinder barrel. A second water inlet and a second water outlet that are communicated with the second cooling cavity are opened on the cylinder barrel. The first water outlet is communicated with the second water inlet.

[0006] Furthermore, threaded joints are threadedly connected to the first water inlet, the first water outlet, the second water inlet, and the second water outlet. The first water outlet and the second water inlet are communicated through a high-temperature water pipe.

[0007] Furthermore, one end of the cooling sleeve is provided with a connecting plate, and the connecting plate is installed on the cylinder barrel through connecting bolts.

[0008] Furthermore, an installation groove is opened in the inner cavity at one end of the dust-proof sleeve far from the cylinder barrel, and a dust-proof ring is arranged in the installation groove.

[0009] Furthermore, the cylinder barrel and the dust-proof sleeve are of an integral structure.

[0010] Beneficial effects

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] A high-temperature-resistant water-cooled cylinder of the utility model effectively prevents dust from polluting the piston rod and the sealing ring by arranging a dust-proof sleeve at the position of the piston rod of the cylinder, effectively prolongs the service life of the cylinder. By arranging a cooling sleeve on the dust-proof sleeve, injecting cooling water into the first water inlet to the first cooling cavity, the cooling water absorbs the heat at the piston rod, and through the circulation of the cooling water, the heat is effectively taken away to achieve the purpose of cooling, thereby effectively reducing the temperature of the sealing ring and preventing the sealing ring from being damaged due to overheating. After the cooling water flows out from the first water outlet, it flows to the second water inlet through the high-temperature water pipe and enters the second cooling cavity from the second water inlet, thereby playing a role in cooling the cylinder barrel, effectively preventing the cylinder barrel from cracking due to overheating, and playing a role in protecting the cylinder barrel. It has the characteristics of convenient use and wide application range. Description of the drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 is Figure 3 an enlarged structural schematic diagram of part A in

[0015] Figure 3 is a sectional structural schematic diagram of the utility model.

[0016] Wherein: 1 - cylinder barrel, 2 - piston, 3 - piston rod, 4 - dust-proof sleeve, 5 - cooling sleeve, 6 - first cooling cavity, 7 - first water inlet, 8 - first water outlet, 9 - connecting plate, 10 - connecting bolt, 11 - second cooling cavity, 12 - second water inlet, 13 - second water outlet, 14 - threaded joint, 15 - sealing ring, 16 - dust-proof ring, 17 - high-temperature water pipe. Specific embodiments

[0017] The following further describes the utility model with reference to specific embodiments in the drawings.

[0018] Refer to Figures 1-3As shown in the figure, a high-temperature-resistant water-cooled cylinder of the present utility model includes a cylinder barrel 1. A piston 2 is movably arranged inside the cylinder barrel 1. A piston rod 3 that is movably inserted into the cylinder barrel 1 is arranged on the piston 2. A sealing ring 15 is arranged between the piston rod 3 and the cylinder barrel 1. A dust-proof sleeve 4 is arranged at one end of the cylinder barrel 1 close to the piston rod 3. The piston rod 3 is movably inserted into the dust-proof sleeve 4. A cooling sleeve 5 is sleeved outside the dust-proof sleeve 4. A first cooling cavity 6 arranged in a surrounding manner is opened inside the cooling sleeve 5. A first water inlet 7 and a first water outlet 8 that are communicated with the first cooling cavity 6 are opened on the cooling sleeve 5. By arranging the dust-proof sleeve 4 at the position of the piston rod 3 of the cylinder, it effectively prevents dust from contaminating the piston rod 3 and the sealing ring 15, and effectively extends the service life of the cylinder. By arranging the cooling sleeve 5 on the dust-proof sleeve 4, by injecting cooling water into the first water inlet 7 into the first cooling cavity 6, the cooling water absorbs the heat at the piston rod 3. Through the circulation of the cooling water, the heat is effectively taken away to achieve the purpose of cooling, thereby effectively reducing the temperature of the sealing ring 15 and preventing the sealing ring 15 from being damaged due to overheating. After the cooling water flows out from the first water outlet 8, it flows to the second water inlet 12 through the high-temperature water pipe 17 and enters the second cooling cavity 11 from the second water inlet 12, thereby playing a role in cooling the cylinder barrel 1 and effectively preventing the cylinder barrel 1 from cracking due to overheating, playing a role in protecting the cylinder barrel 1.

[0019] Specifically, a second cooling cavity 11 arranged in a surrounding manner is opened on the cylinder barrel 1. A second water inlet 12 and a second water outlet 13 that are communicated with the second cooling cavity 11 are opened on the cylinder barrel 1. The first water outlet 8 is communicated with the second water inlet 12. The cooling water flows to the second water inlet 12 through the high-temperature water pipe 17, enters the second cooling cavity 11 from the second water inlet 12, and flows out from the second water outlet 13, thereby playing a role in cooling the cylinder barrel 1.

[0020] Preferably, threaded joints 14 are threadedly connected to the first water inlet 7, the first water outlet 8, the second water inlet 12, and the second water outlet 13. The first water outlet 8 is communicated with the second water inlet 12 through the high-temperature water pipe 17. The threaded joints 14 can be used to quickly connect each water port, facilitating the work of the operator. The high-temperature water pipe 17 can effectively prevent heat-induced rupture and reduce the occurrence of faults.

[0021] Furthermore, a connecting plate 9 is arranged at one end of the cooling sleeve 5. The connecting plate 9 is installed on the cylinder barrel 1 through a connecting bolt 10, which is convenient for the installation and fixation of the cooling sleeve 5, enabling the cooling sleeve 5 to be installed on the dust-proof sleeve 4 later and facilitating disassembly when replacement is needed.

[0022] Furthermore, an installation groove is opened on the inner cavity at one end of the dust-proof sleeve 4 far from the cylinder barrel 1. A dust-proof ring 16 is arranged in the installation groove, which effectively prevents dust from entering the piston rod 3 and the sealing ring 15, plays a role in protecting the sealing ring 15, and extends the service life of the sealing ring 15.

[0023] Furthermore, the cylinder barrel 1 and the dust-proof sleeve 4 are of an integral structure, which is convenient for production and manufacturing, reduces stress concentration at the connection, and effectively prevents cracking at the connection.

[0024] When a high-temperature resistant water-cooled cylinder of this embodiment is in use, by arranging a dust-proof sleeve 4 at the position of the piston rod 3 of the cylinder, it effectively prevents dust from polluting the piston rod 3 and the sealing ring 15, and effectively extends the service life of the cylinder. By arranging a cooling sleeve 5 on the dust-proof sleeve 4, and injecting cooling water into the first cooling cavity 6 through the first water inlet 7, the cooling water absorbs the heat at the piston rod 3. Through the circulation of the cooling water, the heat is effectively taken away to achieve the purpose of cooling, thereby effectively reducing the temperature of the sealing ring 15 and preventing the sealing ring 15 from being damaged due to overheating. After the cooling water flows out from the first water outlet 8, it flows through the high-temperature water pipe 17 to the second water inlet 12 and enters the second cooling cavity 11 from the second water inlet 12, thereby playing a role in cooling the cylinder barrel 1 and effectively preventing the cylinder barrel 1 from cracking due to overheating, playing a role in protecting the cylinder barrel 1. A high-temperature resistant water-cooled cylinder of the present utility model has good heat dissipation performance, reduces the temperature of the sealing ring, effectively extends the service life of the cylinder, and has the characteristics of wide application range and strong practicability.

[0025] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, and these will not affect the implementation effect of the present utility model and the practicability of the patent.

Claims

1. A high temperature proof water-cooled cylinder, comprising a cylinder barrel (1), wherein a piston (2) is movably arranged in the cylinder barrel (1), wherein a piston rod (3) movably plugged into the cylinder barrel (1) is arranged on the piston (2), and a sealing ring (15) is arranged between the piston rod (3) and the cylinder barrel (1), characterized in that: A dustproof sleeve (4) is provided at one end of the cylinder barrel (1) near the piston rod (3); the piston rod (3) and the dustproof sleeve (4) are movably connected; a cooling sleeve (5) is provided on the outer side of the dustproof sleeve (4); a first cooling cavity (6) arranged around the cooling sleeve (5) is provided inside the cooling sleeve (5); and a first water inlet (7) and a first water outlet (8) which are connected to the first cooling cavity (6) are provided on the cooling sleeve (5).

2. A high temperature proof water-cooled cylinder according to claim 1, characterized in that: The cylinder barrel (1) is provided with a second cooling chamber (11) arranged in a surrounding manner, the cylinder barrel (1) is provided with a second water inlet (12) and a second water outlet (13) which are connected to the second cooling chamber (11), and the first water outlet (8) is connected to the second water inlet (12).

3. A high temperature proof water-cooled cylinder according to claim 2, characterized in that: The first water inlet (7), the first water outlet (8), the second water inlet (12) and the second water outlet (13) are all threadedly connected with a threaded joint (14), and the first water outlet (8) and the second water inlet (12) are connected via a high-temperature water pipe (17).

4. A high temperature proof water-cooled cylinder according to claim 2, characterized in that: A connecting plate (9) is provided at one end of the cooling jacket (5), and the connecting plate (9) is mounted on the cylinder barrel (1) via connecting bolts (10).

5. The high temperature proof water-cooled cylinder according to claim 1, characterized in that: A mounting groove is provided on the inner cavity of one end of the dustproof sleeve (4) away from the cylinder (1), and a dustproof ring (16) is provided in the mounting groove.

6. The high temperature proof water-cooled cylinder according to claim 1, characterized in that: The cylinder (1) and the dustproof sleeve (4) are an integrated structure.

Images