Fast and slow pulse oil feeder for crystallizer

Abstract

The utility model belongs to the technical field of relevant equipment in the metallurgical industry, and particularly relates to a crystallizer fast and slow pulse oil feeder which comprises an oil injection body, and a fast oil supply system, a slow pulse oil supply system and an oil outlet are arranged on the oil injection body. In the early stage of casting, an oil supply pipeline of the crystallizer and an oil groove in the crystallizer can be rapidly filled with lubricating oil through the rapid oil supply system; in the casting stage, pulse type oil supply is conducted on the crystallizer through the low-speed pulse oil supply system, the oil supply amount can be accurately controlled, meanwhile, waste of lubricating oil is avoided, and the surface quality of castings is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment in the metallurgical industry, and in particular to a fast and slow pulse oil supply device for a crystallizer. Background Art

[0002] In the metallurgical industry, the crystallizer is a commonly used piece of equipment. It is a continuous casting machine that receives molten steel poured from the middle and solidifies it into a solid billet shell according to a specified cross-sectional shape. It is the most critical component of the continuous casting machine, and its structure, material, and performance parameters play a decisive role in the quality of the cast billet and the production capacity of the casting machine.

[0003] When the crystallizer is working, it needs to be continuously supplied with lubricating oil to ensure that the crystallizer is in the best continuous working condition, to ensure the normal operation of the crystallizer, and thus to ensure the quality of the castings.

[0004] The existing crystallizer oil supply pipeline is a unified control oil passage. The oil quantity is controlled by the operator based on the time and the oil output. Due to the oil supply quantity, either the initial oil supply time is too long or the oil supply quantity is too large during the casting stage, which makes it inconvenient for the operator to control the oil quantity, resulting in waste and instability in the quality of the castings.

[0005] In response to the above problems, this utility model document proposes a crystallizer fast and slow pulse oil supplier. Utility Model Content

[0006] This invention provides a fast and slow pulse oil supply device for a crystallizer, which can select fast or slow pulse oil supply according to the casting stage, making it easy to control the oil supply and improve the quality of castings.

[0007] This utility model provides the following technical solution:

[0008] A crystallizer fast and slow pulse oil supply device includes an oil injection body, on which a fast oil supply system, a slow pulse oil supply system, and an oil outlet are provided;

[0009] The rapid oil supply system includes a rapid oil inlet, the rapid oil inlet is arranged on the side wall of the oil filling body, and the oil outlet is arranged on the side wall of the oil filling body;

[0010] The slow pulse oil supply system includes an oil inlet cap at one end of the oil injection body and a guide cap at the other end of the oil injection body. A first oil delivery groove is provided between the oil inlet cap and the end face of the oil injection body, and a second oil delivery groove is provided between the guide cap and the end face of the oil injection body. The side wall of the oil injection body is provided with a connecting hole that connects the first oil delivery groove and the second oil delivery groove. The oil inlet cap is provided with a slow oil inlet.

[0011] A piston is slidably disposed inside the oil injection body near the guide head. A guide rod is provided on one end face of the piston and a positioning rod is provided on the other end face. The guide rod passes through the guide head and is connected to an adjusting bolt.

[0012] A sealing seat is provided inside the oil injection body near the oil injection head. A push rod is slidably arranged inside the sealing seat along the length of the oil injection body. A first oil delivery hole is opened on the adjacent end face of the push rod and the piston. A second oil delivery hole is also provided on the side wall, which is connected to the first oil delivery hole. A third oil delivery hole is provided on the side wall of the sealing seat. The third oil delivery hole is positioned corresponding to the second oil delivery hole. The third oil delivery hole on the sealing seat is connected to the first oil delivery groove.

[0013] A compression spring is provided between the push rod and the positioning rod.

[0014] Furthermore, the push rod is provided with a limiting plate, and one end of the compression spring is sleeved on the end of the push rod, with that end of the compression spring abutting against the limiting plate.

[0015] Furthermore, one end of the sealing seat is clamped on the inner wall of the oil filling body, and the other end is clamped in the oil inlet seal head.

[0016] Furthermore, the sealing seat is a cylindrical structure, and a third oil delivery hole is provided on the side wall of the sealing seat, and the third oil delivery hole is connected to the interior of the sealing seat.

[0017] Furthermore, both ends of the oil filling body are provided with threaded mounting grooves, and the oil inlet seal head and the guide seal head are installed in the threaded mounting grooves.

[0018] Furthermore, the first oil delivery groove and the second oil delivery groove are respectively located at the bottom of the threaded mounting grooves at both ends of the oil injection body.

[0019] Furthermore, the guide rod is connected with an adjusting bolt after passing through the guide head.

[0020] In this invention, during the early stage of casting, a rapid oil supply system allows the oil supply pipes and oil tanks inside the crystallizer to be quickly filled with lubricating oil. During the casting stage, a slow pulse oil supply system provides pulsed oil supply to the crystallizer, which can precisely control the amount of oil supplied without wasting lubricating oil and improves the surface quality of the castings. Attached Figure Description

[0021] Figure 1 A schematic cross-sectional view of a crystallizer fast and slow pulse oil feeder provided by an embodiment of the utility model

[0022] Figure 2 A schematic diagram of a use state of a crystallizer fast and slow pulse oil feeder provided by an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram illustrating another usage state of a crystallizer fast and slow pulse oil supply device provided in an embodiment of this utility model.

[0024] Reference numerals:

[0025] 1. Oil injection body; 101. First oil delivery groove; 102. Second oil delivery groove; 103. Connecting hole; 2. Fast oil inlet; 3. Oil outlet; 4. Slow oil inlet; 5. Oil inlet head; 6. Guide head; 7. Sealing seat; 701. Third oil delivery hole; 8. Push rod; 801. First oil delivery hole; 802. Second oil delivery hole; 803. Limiting plate; 9. Piston; 10. Guide rod; 11. Adjusting bolt; 12. Positioning rod; 13. Compression spring. Detailed Implementation

[0026] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0027] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] In this embodiment of the invention, 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. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0029] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0030] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0031] Example:

[0032] Reference Figure 1 As shown, a crystallizer fast and slow pulse oil supply device includes an oil injection body 1, which is equipped with a fast oil supply system, a slow pulse oil supply system, and an oil outlet 3.

[0033] The rapid oil supply system includes a rapid oil inlet 2, which is located on the side wall of the oil injection body 1, and an oil outlet 3 is located on the side wall of the oil injection body 1.

[0034] The slow pulse oil supply system includes an oil inlet head 5 at one end of the oil injection body 1 and a guide head 6 at the other end of the oil injection body 1. A first oil delivery groove 101 is left between the oil inlet head 5 and the end face of the oil injection body 1, and a second oil delivery groove 102 is left between the guide head 6 and the end face of the oil injection body 1. The side wall of the oil injection body 1 is provided with a connecting hole 103 that connects the first oil delivery groove 101 and the second oil delivery groove 102. The oil inlet head 5 is provided with a slow oil inlet 4.

[0035] A piston 9 is slidably installed inside the oil filling body 1 near the guide head. One end face of the piston 9 is provided with a guide rod 10, and the other end face is provided with a positioning rod 12. The guide rod 10 facilitates the installation of the piston 9 and ensures the direction of movement of the piston 9.

[0036] A sealing seat 7 is provided inside the oil injection body 1 near the oil injection head. A push rod 8 is slidably arranged inside the sealing seat 7 along the length of the oil injection body 1. A first oil delivery hole 801 is opened on the adjacent end face of the push rod 8 and the piston 9. A second oil delivery hole 802 connected to the first oil delivery hole 801 is also provided on the side wall. A third oil delivery hole 701 is provided on the side wall of the sealing seat 7. The third oil delivery hole 701 is positioned corresponding to the second oil delivery hole 802. The third oil delivery hole 701 on the sealing seat 7 is connected to the first oil delivery groove 101.

[0037] A compression spring 13 is provided between the push rod 8 and the positioning rod 12. One end of the compression spring 13 is sleeved on the push rod 8, and the other end is sleeved on the positioning rod 12, so that the compression spring 13 is positioned.

[0038] By connecting the quick oil inlet 2, lubricating oil enters the oil injection body 1 through the quick oil inlet 2, and then the lubricating oil flows directly out from the oil outlet 3 on the side wall of the oil injection body 1 and is delivered to the crystallizer. This can quickly fill the crystallizer with lubricating oil and meet the working requirements of the crystallizer in the early stage of use.

[0039] When the oil pressure at this end of the push rod 8 is greater than the elastic force of the compression spring 13, the oil pressure will push the push rod 8 to move relative to the inside of the oil body 1, causing the compression spring 13 to be compressed. When the push rod 8 moves to a certain position in the sealing seat 7, the third oil delivery hole 701 on the sealing seat 7 is connected to the slow oil inlet 4. At this time, the lubricating oil enters the sealing seat 7 from the slow oil inlet 4, and then flows into the first oil delivery groove 101 through the third oil delivery hole 701. Since the first oil delivery groove 101 and the second oil delivery groove 102 are connected through the connecting block, the lubricating oil flows into the second oil delivery groove 102. After the lubricating oil enters the second oil delivery groove 102, it will generate oil pressure on the end of the piston 9 provided with the guide rod 10, so that When the oil pressure on the push rod 8 is balanced with the oil pressure on the piston 9, the push rod 8 moves toward the slow oil inlet 4 under the elastic force of the compression spring 13. When it moves to the position where the second oil delivery hole 802 on the push rod 8 is connected to the third oil delivery hole 701 of the sealing seat 7, the oil in the first oil delivery groove 101 flows from the third oil delivery hole 701 into the second oil delivery hole 802, then into the first oil delivery hole 801, and finally into the oil filling body 1, and then flows out from the oil outlet 3 on the side wall of the oil filling body 1 and is delivered to the crystallizer; when the lubricating oil in the first oil delivery groove 101 is discharged to a certain extent, the oil pressure on the push rod 8 is greater than the oil pressure on the piston 9. When the oil pressure on the rod is greater than the oil pressure on the piston 9 plus the elastic force of the compression spring 13, the push rod 8 moves toward the piston 9. After the end of the push rod 8 moves to a certain position, the slow oil inlet 4 is connected to the third oil delivery hole 701, and the initial steps are repeated.

[0040] Pulsed oil supply is automatically achieved through hydraulic pressure and the elastic force of compression spring 13.

[0041] During the casting stage, the crystallizer is supplied with oil through a slow pulse oil supply system, which avoids the waste of lubricating oil and prevents continuous oil supply from affecting the surface quality of the casting.

[0042] The push rod 8 is provided with a limiting plate 803, and one end of the compression spring 13 is sleeved on the end of the push rod 8, and the end of the compression spring 13 abuts against the limiting plate 803.

[0043] The limiting plate 803 facilitates the installation of the compression spring 13, allowing the push rod 8 to move along with the spring when it moves. This ensures that when the oil pressure on the push rod 8 is the same as the oil pressure on the piston 9, the push rod 8 can move towards the slow oil inlet 4 under the elastic force of the compression spring 13. This ensures the normal operation of the slow oil supply system.

[0044] One end of the sealing seat 7 is locked in the inner wall of the oil injection body 1, and the other end is locked in the oil inlet head 5.

[0045] To facilitate the installation of the sealing seat 7, the sealing seat 7 is placed on the side wall of the oil injection body 1, and then the sealing seat 7 is pressed by the oil inlet head 5, thus completing the installation of the sealing seat 7 and improving the installation efficiency.

[0046] The sealing seat 7 has a cylindrical structure, and a third oil delivery hole 701 is provided on the side wall of the sealing seat 7. The third oil delivery hole 701 is connected to the interior of the sealing seat 7.

[0047] After the push rod 8 moves to a certain position in the sealing seat 7, the third oil supply hole 701 can be connected with the second oil supply hole 802, thereby transporting the lubricating oil in the first oil supply groove 101 to the second oil supply hole, and then into the oil injection body 1.

[0048] Threaded mounting grooves are provided at both ends of the oil filling body 1, and the oil inlet seal 5 and the guide seal 6 are installed in the threaded mounting grooves.

[0049] The oil inlet seal 5 and the guide seal 6 are threadedly connected to the oil filling body 1 , which can ensure the stability of the connection structure on the one hand and facilitate the installation operation on the other hand.

[0050] The first oil delivery groove 101 and the second oil delivery groove 102 are located at the bottom of the threaded mounting grooves at both ends of the oil injection body 1, respectively.

[0051] When the oil inlet seal 5 and the wire seal are installed, the first oil delivery groove 101 is located between the oil inlet seal 5 and the end face of the oil filling body 1, and the second oil delivery groove 102 is located between the wire seal and the end face of the oil filling body 1, so that the lubricating oil input into the first oil delivery groove 101 through the third oil delivery hole 701 can flow from the first oil delivery groove 101 into the connecting hole 103, and then flow into the second oil delivery groove 102, and the lubricating oil in the second oil delivery groove 102 can exert oil pressure on the end face of the piston 9 movably arranged in the oil filling body 1, thereby ensuring the normal use of the slow pulse oil supply system.

[0052] The guide rod 10 passes through the guide end cap 6 and is connected to the adjusting bolt 11.

[0053] Rotating the adjusting bolt 11 moves the guide rod 10, thereby adjusting the position of the piston 9, which in turn adjusts the spring force of the compression spring 13 and the moving distance of the piston 9, thus adjusting the amount of lubricating oil output by the slow pulse oil supply system each time. The closer the piston 9 is to the push rod 8, the smaller the oil supply amount per cycle; conversely, the farther the piston 9 is from the push rod 8, the larger the oil supply amount. The oil delivery rate can be adjusted according to the casting conditions of different castings, improving the adaptability of the oil supply device.

[0054] During assembly, first place the piston 9 inside one end of the oil injection body 1, then install the wire end cap on that part of the oil injection body 1, and then connect the adjusting bolt 11 to the guide rod 10. Next, put the compression spring 13 on the positioning rod 12, and then set the push rod 8 on the other end of the compression spring 13. At the same time, put the sealing seat 7 on the push rod 8, and then snap the sealing seat 7 into place at the end of the oil injection body 1. Then, install the oil inlet end cap 5 on that end of the oil injection body 1, and then press and fix the sealing seat 7 to the end of the oil injection body 1, thus completing the entire oil supply device.

[0055] Reference Figure 2 and Figure 3As shown, in preparation for casting, the first step is to fill the crystallizer and its oil supply with lubricating oil. First, connect the oil cylinder to the fast oil inlet 2, then connect the oil inlet of the crystallizer to the oil outlet 3 of the oil supply. This allows the lubricating oil output from the oil cylinder to enter the oil injection body 1 through the fast oil inlet 2 and then be discharged directly from the oil outlet 3, before being transported to the crystallizer. This ensures that the crystallizer and oil supply are filled with lubricating oil. During the casting stage, adjust the adjusting bolt 11 according to the oil consumption of the casting to determine the position of the piston 9, ensuring that the oil supply is just sufficient for the casting. Connect the oil cylinder to the slow oil inlet 4, while closing the fast oil inlet 2. The oil pressure at the slow oil inlet 4 acts on the push rod 8. When the oil pressure exceeds the spring force of the compression spring 13, the push rod 8 moves towards the piston 9. When the push rod 8 reaches the moved position, the slow oil inlet 4 connects to the first oil delivery groove 101, allowing lubricating oil to enter the first... The oil enters the first oil channel 101 through the connecting hole 103 into the second oil channel 102. The oil pressure in the second oil channel 102 acts on the piston 9. When the oil pressure on the piston 9 is the same as the oil pressure on the push rod 8, the push rod 8 moves towards the slow oil inlet 4 under the elastic force of the compression spring 13. After moving a certain distance, the third oil inlet 701 on the sealing seat 7 connects with the second oil inlet 802 on the push rod 8, allowing the lubricating oil in the first oil channel 101 to flow from the third oil channel. The oil enters through the second oil supply hole 802 through the first oil supply hole 801, then enters the oil injection body 1 through the first oil supply hole 801, and is discharged from the oil outlet 3 to supply oil to the crystallizer. When the amount of lubricating oil in the first oil supply tank 101 reaches a certain level, the oil pressure received by the piston 9 decreases. When the sum of the oil pressure on the piston 9 and the elastic force of the compression spring 13 is less than the oil pressure received by the push rod 8, the push rod 8 moves towards the piston 9 to complete one pulse oil supply. The push rod 8 repeats the above operation to perform continuous pulse oil supply.

[0056] The oil supply can be precisely adjusted according to demand, reducing the waste of lubricating oil and preventing excessive oil supply from affecting the surface quality of castings.

[0057] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A crystallizer fast and slow pulse oil supply device, characterized in that: It comprises an oil filling body, on which a fast oil supply system, a slow pulse oil supply system and an oil outlet are arranged; The rapid oil supply system comprises a rapid oil inlet, the rapid oil inlet is arranged on the side wall of the oil filling body, and the oil outlet is arranged on the side wall of the oil filling body; The slow pulse oil supply system comprises an oil inlet seal provided at one end of the oil filling body and a guide seal provided at the other end of the oil filling body, a first oil delivery groove is left between the oil inlet seal and the end face of the oil filling body, a second oil delivery groove is left between the guide seal and the end face of the oil filling body, and a connecting hole for connecting the first oil delivery groove and the second oil delivery groove is provided on the side wall of the oil filling body, and a slow oil inlet port is provided on the oil inlet seal; A piston is slidably arranged inside one end of the oil filling body close to the guide head, a guide rod is arranged on one end surface of the piston, and a positioning rod is arranged on the other end surface; A sealing seat is provided inside the oil filling body near the oil filling head, a push rod is slidably provided inside the sealing seat along the length direction of the oil filling body, a first oil delivery hole is opened on the adjacent end surface of the push rod and the piston, a second oil delivery hole connected to the first oil delivery hole is also provided on the side wall, a third oil delivery hole is provided on the side wall of the sealing seat, the third oil delivery hole corresponds to the position of the second oil delivery hole, and the third oil delivery hole on the sealing seat is connected to the first oil delivery groove; A compression spring is arranged between the push rod and the positioning rod.

2. A crystallizer fast and slow pulse oil supply according to claim 1, characterized in that: A limiting plate is arranged on the push rod, one end of the compression spring is sleeved on the end of the push rod, and the end of the compression spring abuts against the limiting plate.

3. A crystallizer fast and slow pulse oil supply device according to claim 2, characterized in that: One end of the sealing seat is clamped on the inner wall of the oil filling body, and the other end is clamped in the oil inlet sealing head.

4. A crystallizer fast and slow pulse oil supply device according to claim 3, characterized in that: The sealing seat is a cylindrical structure, and a third oil delivery hole is arranged on the side wall of the sealing seat, and the third oil delivery hole is communicated with the interior of the sealing seat.

5. A crystallizer fast and slow pulse oil supply device according to claim 4, characterized in that: Both ends of the oil filling body are provided with threaded mounting grooves, and the oil inlet sealing head and the guide sealing head are installed in the threaded mounting grooves.

6. A crystallizer fast and slow pulse oil supply device according to claim 5, characterized in that: The first oil delivery groove and the second oil delivery groove are respectively located at the bottom of the threaded mounting grooves at both ends of the oil filling body.

7. A crystallizer fast and slow pulse oil supply device according to claim 6, characterized in that: The guide rod is connected with an adjusting bolt after passing through the guide head.

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