Die casting steel pouring sliding gate hydraulic cylinder device

Abstract

The utility model relates to the technical field of hydraulic cylinders, in particular to a die casting steel pouring sliding gate hydraulic cylinder device which comprises a cylinder body and a piston rod, the first end of the cylinder body is a piston rod telescopic end, and a stroke sensor is installed at the second end of the cylinder body. An air path space is formed in the inner wall of the cylinder body and used for cooling elements in the cylinder body, an air outlet communicated with the air path space is formed in the first end of the cylinder body, and an air inlet communicated with the air path space is formed in the second end of the cylinder body; a shell assembly is arranged on the outer side of the stroke sensor. The shell assembly comprises a protective shell, an air inlet pipe and a cable connecting piece, the protective shell covers the outer side of the stroke sensor, and the air inlet pipe is connected to the protective shell; the protective shell is communicated with an air inlet of the cylinder body; the cable connecting piece is installed on the protective shell and used for electrically connecting the stroke sensor with the outside, the stroke sensor is externally provided with the shell assembly to protect the sensor from being affected by the external environment, and meanwhile the heat dissipation effect is enhanced through flowing of cooling air.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically providing a hydraulic cylinder device for casting steel sliding gate. Background Technology

[0002] In die casting, a sliding gate hydraulic cylinder with a displacement sensor is typically used. The stroke of the hydraulic cylinder is detected to calculate the opening degree of the sliding gate. The real-time display of the gate opening degree assists the casting operator in quickly and accurately controlling the casting speed. Whether the gate opening degree display is normal or not will directly affect the casting operator's judgment of the entire casting process, and thus affect the quality of the die-cast steel.

[0003] The sliding gate hydraulic cylinder has dedicated cooling compressed air, but it only cools the cylinder body and cannot cool the displacement sensor installed at the tail of the hydraulic cylinder. Under the continuous high temperature of steel pouring, the surface temperature of the displacement sensor at the tail of the hydraulic cylinder will exceed its designed maximum temperature of 80°C, which can easily cause damage or malfunction of the internal electrical components of the sensor, resulting in the inability to display the gate opening degree normally and affecting the casting of molded steel.

[0004] Accordingly, there is a need in the art for a new hydraulic cylinder device for casting steel sliding gates to solve the above-mentioned technical problems. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problems of lack of protection and heat dissipation of the stroke sensor of the hydraulic cylinder of the sliding gate of the molded steel casting.

[0006] This utility model provides a hydraulic cylinder device for a sliding gate in die casting of steel, characterized in that the hydraulic cylinder device includes:

[0007] The cylinder body and piston rod are provided. The first end of the cylinder body is the extension end of the piston rod, and the second end of the cylinder body is equipped with a stroke sensor. An air passage space is formed on the inner wall of the cylinder body for cooling the components inside the cylinder body. An air outlet communicating with the air passage space is formed at the first end of the cylinder body, and an air inlet communicating with the air passage space is formed at the second end of the cylinder body. A housing assembly is provided on the outside of the stroke sensor.

[0008] The housing assembly includes a protective shell, an air inlet pipe, and a cable connector. The protective shell covers the outside of the stroke sensor, and the air inlet pipe is connected to the protective shell to deliver external cooling air into the protective shell. The protective shell communicates with the air inlet of the cylinder to allow the cooling air inside the protective shell to circulate into the cylinder. The cable connector is installed on the protective shell for electrically connecting the stroke sensor to the outside.

[0009] Based on the above configuration, this mold-cast steel sliding gate hydraulic cylinder device effectively utilizes external cooling air to dissipate heat from internal components by forming an airflow space on the inner wall of the cylinder and incorporating a cooling system connected to the cylinder's air inlet and outlet, thus preventing overheating. Specifically, the stroke sensor is protected by an external housing assembly to shield it from external environmental influences, while the cooling airflow further enhances heat dissipation. This design improves the device's operational stability and lifespan, particularly in high-temperature and high-load operating environments, ensuring its reliability and accuracy.

[0010] In the preferred embodiment of the hydraulic cylinder described above, the protective shell is configured as a cylindrical structure, and the side of the protective shell near the cylinder body is configured as an open structure.

[0011] Based on the above design, the protective shell is designed as a cylindrical structure with an opening near the cylinder block. This effectively guides and circulates cooling air, ensuring smooth flow into the cylinder block and providing stable heat dissipation. The cylindrical design not only increases the airflow area but also makes the device more compact and stable, reducing the impact of external shocks and improving the system's anti-interference capability and service life.

[0012] In the preferred embodiment of the hydraulic cylinder described above, the protective shell is fixed to the cylinder body by bolts, and the connection between the protective shell and the cylinder body is sealed by an O-ring.

[0013] Based on the above setup, the protective shell is connected to the cylinder body using bolts and sealed with O-rings, ensuring the structural robustness and airtightness. This design effectively prevents cooling air leakage and reduces the risk of external dust and moisture entering the device, thereby protecting the safety of the sensors and internal cylinder components and further improving the device's operational stability and long-term reliability.

[0014] In the preferred embodiment of the hydraulic cylinder described above, the cable connector includes a cylindrical connector and a hose clamp. The cylindrical connector communicates with the protective shell through a cable hole, and the hose clamp is disposed at the end of the cylindrical connector near the cable hole for fixing the cable.

[0015] Based on the above design, the cable connector includes a cylindrical connector and a hose clamp, ensuring a secure connection of the cable to the protective housing. The cylindrical connector connects to the external cable through a cable hole, enabling electrical connection between the device and external systems. The hose clamp effectively secures the cable, preventing loosening or breakage. This design guarantees stable transmission of electrical signals and can withstand high vibrations and tensile forces in industrial environments, ensuring the reliability of the electrical connection during long-term operation.

[0016] In the preferred embodiment of the hydraulic cylinder described above, a sealing sleeve is installed in the cable hole of the cylindrical connector, and the sealing sleeve has an internal thread structure.

[0017] Based on the above configuration, a sealing sleeve is installed on the cable hole of the cylindrical connector. This sealing sleeve features an internal thread structure, effectively enhancing the sealing performance of the cable connection. The sealing sleeve design not only prevents cooling air leakage but also protects the cable from external environmental factors (such as moisture and dust), thereby improving the durability and stability of the device and ensuring long-term safe and trouble-free operation of the cable connection.

[0018] In the preferred embodiment of the hydraulic cylinder described above, the hose clamp is made of stainless steel and the sealing sleeve is made of rubber.

[0019] Based on the above design, the combination of stainless steel hose clamps and sealing sleeves further enhances the durability and sealing performance of the cable connectors. The high strength and corrosion resistance of stainless steel ensure that the hose clamps can operate stably for extended periods in harsh environments, while the sealing sleeves provide a good seal, effectively preventing cooling air leakage and the intrusion of external substances into the cable interface. This design ensures the safety and stability of the entire electrical connection assembly under demanding conditions.

[0020] In the preferred embodiment of the hydraulic cylinder described above, the air inlet pipe is provided with an internal thread structure so that the air inlet pipe can be threadedly connected to an external air supply device.

[0021] Based on the above design, the internal thread structure within the air inlet duct allows for a secure threaded connection to the external air supply device. This design not only simplifies the installation process and improves the adjustability and versatility of the device, but also ensures a stable duct connection and prevents cooling air leakage. The threaded connection design of the air inlet duct enables quick connection and disassembly of the device, facilitating equipment maintenance and component replacement.

[0022] In the preferred embodiment of the hydraulic cylinder described above, the air passage space is arranged around the inner surface of the cylinder body.

[0023] Based on the above configuration, the airflow design helps optimize the distribution of airflow within the cylinder, ensuring that cooling air can evenly cover all internal components. This structure not only improves heat dissipation but also reduces potential localized overheating, ensuring stable operation of the hydraulic cylinder unit in high-temperature environments. Through a rational airflow layout, the overall cooling efficiency of the device is improved, extending its service life and increasing its operational efficiency.

[0024] In the preferred embodiment of the hydraulic cylinder described above, multiple air outlets are distributed around it.

[0025] Based on the above configuration, the surrounding distribution of air outlets helps to evenly distribute airflow within the cylinder, thereby improving the overall efficiency of the cooling system. The distribution of multiple air outlets optimizes airflow, reduces airflow unevenness, and avoids uneven cooling caused by excessive local airflow resistance. This design ensures maximum utilization of cooling air, thus enhancing the heat dissipation effect of the cooling system and improving the stability and durability of the hydraulic cylinder assembly. Attached Figure Description

[0026] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0027] Figure 1 A schematic diagram of the overall structure of this utility model is shown.

[0028] Figure label:

[0029] 1. Cylinder block; 2. Stroke sensor; 3. Protective housing; 4. Air inlet pipe; 5. Cable connector; 6. O-ring seal; 7. Air inlet; 8. Air duct space; 9. Air outlet. Detailed Implementation

[0030] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0031] It should be noted that in the description of this utility model, the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the structure must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] This utility model provides a hydraulic cylinder device for a sliding gate in die casting of steel, characterized in that the hydraulic cylinder device includes:

[0034] The cylinder body 1 and piston rod are included. The first end of the cylinder body 1 is the extension end of the piston rod, and the second end of the cylinder body 1 is equipped with a stroke sensor 2. An air passage space 8 is formed on the inner wall of the cylinder body 1 for cooling the components inside the cylinder body 1. An air outlet 9 communicating with the air passage space 8 is formed at the first end of the cylinder body 1, and an air inlet 7 communicating with the air passage space 8 is formed at the second end of the cylinder body 1. A housing assembly is provided on the outside of the stroke sensor 2. It should be noted that this utility model does not impose any restrictions on the structure of the cylinder body 1. Those skilled in the art can set it according to their needs. For example, multiple air passage spaces 8 can be formed inside the cylinder body 1 to cover the periphery of the cylinder body 1. Or, for example, a single air passage space 8 can be formed inside the cylinder body 1 to cover the periphery of the cylinder body 1, as long as the structure of the cylinder body 1 does not affect the overall use of the hydraulic cylinder device. In this preferred embodiment, the air passage space 8 is arranged around the inner surface of the cylinder body 1. The design of the air passage space 8 helps to optimize the distribution of airflow inside the cylinder body 1, thereby ensuring that the cooling air can evenly cover all internal components. This structure not only improves heat dissipation but also reduces potential localized overheating, ensuring stable operation of the hydraulic cylinder unit in high-temperature environments. Through a well-designed airflow layout, the overall cooling efficiency of the unit is improved, extending its service life and enhancing its operational efficiency.

[0035] The housing assembly includes a protective shell 3, an air inlet pipe 4, and a cable connector 5. The protective shell 3 covers the outside of the stroke sensor 2, and the air inlet pipe 4 is connected to the protective shell 3 to deliver external cooling air into the protective shell 3. The protective shell 3 communicates with the air inlet 7 of the cylinder 1 to allow the cooling air inside the protective shell 3 to circulate into the cylinder 1. The cable connector 5 is installed on the protective shell 3 for electrically connecting the stroke sensor 2 to the outside. It should be noted that this utility model does not impose any limitations on the specific structure of the protective shell. Those skilled in the art can set it according to their needs. For example, the protective shell can be a square shell, or it can be a circular shell, as long as the protective shell has sufficient capacity to accommodate the stroke sensor 2. In this preferred embodiment, the protective shell 3 is set as a cylindrical structure, and the side of the protective shell 3 near the cylinder 1 is set as an open structure. Designing the protective shell 3 as a cylindrical structure and setting an opening on the side near the cylinder 1 can effectively guide and circulate the cooling air, ensuring that the cooling air can flow smoothly into the cylinder 1 and provide a stable heat dissipation effect. The cylindrical design not only increases the airflow area, but also makes the device more compact and stable in structure, reduces the impact of external shocks, and helps improve the system's anti-interference ability and service life.

[0036] Furthermore, it should be noted that this utility model does not impose any restrictions on the specific connection method between the air inlet pipe 4 and the protective shell 3. Those skilled in the art can set it according to their needs. For example, the air inlet pipe 4 can be connected to the protective shell by threads, or the air inlet pipe 4 can be fixedly connected to the protective shell by bolts, as long as the connection between the protective pipe and the protective shell 3 is sealed and firm.

[0037] This molded steel sliding gate hydraulic cylinder device effectively utilizes external cooling air to dissipate heat from internal components by forming an air passage space 8 on the inner wall of the cylinder body 1 and setting up a cooling system connected to the air inlet 7 and outlet 9 of the cylinder body 1, thus preventing overheating. Specifically, the stroke sensor 2 is protected by an external housing assembly to shield it from external environmental influences, while the cooling airflow further enhances the heat dissipation effect. This design improves the operational stability and lifespan of the device, especially in high-temperature and high-load operating environments, ensuring the device's reliability and accuracy.

[0038] Furthermore, it should be noted that this utility model does not impose any restrictions on the installation method of the protective shell 3 and the cylinder 1. Those skilled in the art can set it according to their needs. For example, the protective shell 3 can be installed on the cylinder 1 by screwing it on, or it can be installed on the cylinder 1 by welding, as long as the installation of the protective shell 3 is stable and does not affect the practicality of the stroke sensor 2. In this preferred embodiment, the protective shell 3 and the cylinder 1 are fixed by bolts, and the connection between the protective shell 3 and the cylinder 1 is sealed by an O-ring seal 6. By using bolts to connect the protective shell 3 and the cylinder 1 and sealing it with an O-ring seal 6, the robustness and sealing of the structure are ensured. This design effectively prevents the leakage of cooling air and reduces the risk of external dust, moisture, etc., entering the device, thereby protecting the safety of the sensor and the internal components of the cylinder 1, and further improving the working stability and long-term reliability of the device.

[0039] Furthermore, the cable connector 5 includes a cylindrical connector and a hose clamp. The cylindrical connector communicates with the protective shell 3 through a cable hole, and the hose clamp is located at the end of the cylindrical connector near the cable hole for securing the cable. The design of the cable connector 5, including the cylindrical connector and the hose clamp, ensures a secure connection of the cable to the protective shell 3. The cylindrical connector connects to an external cable through the cable hole, enabling the device to make electrical connections with external systems, and the hose clamp effectively secures the cable, preventing it from loosening or breaking. This design ensures stable transmission of electrical signals and can withstand high vibration and tension in industrial environments, ensuring the reliability of the electrical connection during long-term operation. Of course, this invention does not impose any restrictions on the specific connection method between the cable and the cable connector 5; those skilled in the art can set it according to their needs, as long as the connection between the cable and the travel sensor 2 is stable.

[0040] Furthermore, a sealing sleeve with an internal thread is installed in the cable hole of the cylindrical connector. Installing a sealing sleeve with an internal thread on the cable hole of the cylindrical connector effectively enhances the sealing performance of the cable connection. The sealing sleeve design not only prevents cooling air leakage but also protects the cable from external environmental factors (such as moisture and dust), thereby improving the durability and stability of the device and ensuring long-term safe and trouble-free operation of the cable connection. In this preferred embodiment, the hose clamp is made of stainless steel, and the sealing sleeve is made of rubber. The combination of the stainless steel hose clamp and the sealing sleeve further enhances the durability and sealing performance of the cable connector 5. The high strength and corrosion resistance of stainless steel ensure that the hose clamp can work stably for a long time in harsh environments, while the sealing sleeve provides a good sealing effect, effectively preventing cooling air leakage and the intrusion of external substances into the cable interface. This design ensures the safety and stability of the entire electrical connection assembly under harsh conditions.

[0041] Furthermore, the air inlet pipe 4 is provided with an internal thread structure to enable a threaded connection between the air inlet pipe 4 and the external air supply device. This internal thread structure allows for a secure threaded connection between the air inlet pipe 4 and the external air supply device. This design not only simplifies the installation process and improves the adjustability and versatility of the device, but also ensures a stable duct connection and prevents cooling air leakage. The threaded connection design of the air inlet pipe 4 allows for quick connection and disassembly, facilitating equipment maintenance and component replacement. Of course, this invention does not impose any restrictions on the specific connection method between the air inlet pipe 4 and the external environment. Those skilled in the art can set it according to their needs. For example, the air inlet pipe 4 can be connected by threads, or it can be connected to the external environment via a flange, as long as the connection between the air inlet pipe 4 and the external environment is stable and sealed.

[0042] Multiple air outlets 9 are distributed around the cylinder 1. This circumferential distribution of air outlets 9 helps to evenly distribute the airflow inside the cylinder 1, improving the overall efficiency of the cooling system. The distribution of multiple air outlets 9 optimizes airflow, reduces airflow unevenness, and avoids uneven cooling caused by excessive local airflow resistance. This design ensures maximum utilization of cooling air, thereby enhancing the heat dissipation effect of the cooling system and improving the stability and durability of the hydraulic cylinder device. Of course, this invention does not impose any limitation on the specific number of air outlets 9; those skilled in the art can set it according to their needs. For example, an air outlet 9 can be a single air outlet 9, or it can be a structure with multiple air outlets 9.

[0043] The technical solution of this utility model has been described in conjunction with the optional embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A hydraulic cylinder device for a sliding gate in die casting of steel, characterized in that, The hydraulic cylinder device includes: The cylinder body and piston rod are provided. The first end of the cylinder body is the extension end of the piston rod, and the second end of the cylinder body is equipped with a stroke sensor. An air passage space is formed on the inner wall of the cylinder body for cooling the components inside the cylinder body. An air outlet communicating with the air passage space is formed at the first end of the cylinder body, and an air inlet communicating with the air passage space is formed at the second end of the cylinder body. A housing assembly is provided on the outside of the stroke sensor. The housing assembly includes a protective shell, an air inlet pipe, and a cable connector. The protective shell covers the outside of the stroke sensor, and the air inlet pipe is connected to the protective shell to deliver external cooling air into the protective shell. The protective shell communicates with the air inlet of the cylinder to allow the cooling air inside the protective shell to circulate into the cylinder. The cable connector is installed on the protective shell for electrically connecting the stroke sensor to the outside.

2. The hydraulic cylinder device for casting steel sliding gate according to claim 1, characterized in that, The protective shell is configured as a cylindrical structure, and the side of the protective shell near the cylinder body is configured as an open structure.

3. The hydraulic cylinder device for sliding gate ingot casting of steel according to claim 2, characterized in that, The protective shell is fixed to the cylinder body by bolts, and the connection between the protective shell and the cylinder body is sealed by an O-ring.

4. The hydraulic cylinder device for sliding gate ingot casting of steel according to claim 1, characterized in that, The cable connector includes a cylindrical connector and a hose clamp. The cylindrical connector is connected to the protective shell through a cable hole, and the hose clamp is located at the end of the cylindrical connector near the cable hole for fixing the cable.

5. The hydraulic cylinder device for casting steel sliding gate according to claim 4, characterized in that, The cable hole of the cylindrical connector is fitted with a sealing sleeve, and the sealing sleeve has an internal thread structure.

6. The hydraulic cylinder device for sliding gate ingot casting of steel according to claim 5, characterized in that, The hose clamp is made of stainless steel, and the sealing sleeve is made of rubber.

7. The hydraulic cylinder device for casting steel sliding gate according to claim 1, characterized in that, The air inlet pipe is provided with an internal thread structure so that the air inlet pipe can be threadedly connected to the external air supply device.

8. The hydraulic cylinder device for sliding gate ingot casting of steel according to claim 1, characterized in that, The airflow space is arranged around the inner surface of the cylinder body.

9. The hydraulic cylinder device for sliding gate ingot casting of steel according to claim 1, characterized in that, The air outlets are distributed in multiple directions.

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