Quick-opening system supercharging equipment for steel pipe rolling

By setting through holes and booster pumps in the cylinder body, combined with sensor and controller monitoring, the problem of insufficient force in quick-opening cylinders was solved, enabling precise control of the wall thickness at the head and tail of the steel pipe and improving the processing accuracy of steel pipe rolling.

CN223794393UActive Publication Date: 2026-01-13SHANDONG HAIXIN DA PETROLEUM MASCH CO LTD
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Patent Information

Application Number
CN202520725647.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-01-13
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

The existing quick-opening system has insufficient force in the quick-opening cylinder, resulting in a large deviation between the head and tail of the steel pipe, making it difficult to meet the requirements for the extension and rapid retraction of thin-walled pipes.

Method used

A through hole and a booster pump are installed inside the cylinder. The through hole enables uniform oil intake between the front and rear chambers of the cylinder. The status of the booster pump is monitored by sensors and controllers to ensure that the cylinder retracts and extends quickly. The booster pump also provides additional pressure to the quick-opening cylinder to control the wall thickness difference between the head and tail of the steel pipe.

Benefits of technology

Effectively control the wall thickness difference between the head and tail of the steel pipe to ensure production needs, realize the pressure boosting of the quick-opening cylinder of the rolling mill, reduce deviation, and improve processing accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses quick-opening system supercharging equipment for steel pipe rolling. The quick-opening system supercharging equipment comprises an oil cylinder body; the pressurizing assembly comprises a through hole, a pressurizing pump, a sensor, a controller and a warning lamp; the through hole is formed in the surface of an oil lever in the oil cylinder body, the booster pump is arranged outside the oil cylinder, the sensor is located in the center of one side outside the booster pump, the controller is fixed to one side of the top end of the booster pump, and the warning lamp is located above the controller. The pressurizing assembly is arranged, the through hole is formed in the oil cylinder rod in the oil cylinder body, oil can enter the front cavity and the rear cavity of the oil cylinder body, meanwhile, the pressurizing pump is arranged and used for supplementing pressure for a rolling mill quick-opening cylinder influencing the wall thickness of the head and the tail of a steel pipe, and the ideal pressure is achieved so that the production requirement can be met. It is ensured that the original system pressure is not changed, meanwhile, the rolling mill quick-opening cylinder is pressurized independently, then the wall thickness difference of the head and the tail of a steel pipe is effectively controlled, and a sensor and a flashing light can monitor and respond to the operation state of the booster pump.
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Description

Technical Field

[0001] This utility model relates to the field of steel pipe rolling technology, specifically to a quick-opening system pressurization device for steel pipe rolling. Background Technology

[0002] Steel pipe is a long strip of steel with a hollow cross-section and no seams around its perimeter. It is widely used as a pipeline for transporting fluids, structural parts, building components, etc. Steel pipes require a quick-opening system for processing during rolling.

[0003] The existing quick-opening system uses a unidirectional hydraulic cylinder. However, due to the low force of the quick-opening cylinder in the rolling mill, its internal structure is not suitable for the extension and rapid retraction operations when rolling thin-walled tubes, resulting in large deviations between the head and tail of the steel tube. Therefore, it is necessary to propose a pressure boosting device for the quick-opening system of steel tube rolling to prevent large deviations between the head and tail of the steel tube. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-opening system pressurization device for steel pipe rolling, so as to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a quick-opening system pressurization device for steel pipe rolling, comprising:

[0006] Hydraulic cylinder body;

[0007] A booster assembly includes a through hole, a booster pump, a sensor, a controller, and a warning light. The through hole is located on the surface of the oil lever inside the cylinder body. The booster pump is located outside the cylinder. The sensor is located in the center of one side of the booster pump. The controller is fixed to one side of the top of the booster pump. The warning light is located above the controller.

[0008] Furthermore, a connecting wire is fixedly connected between the sensor and the controller, and the booster pump is connected to the original hydraulic cylinder system through an installation wire.

[0009] Furthermore, a vertical rod is fixedly connected to the top of the controller, and the top of the vertical rod is fixedly connected to the bottom of the warning light.

[0010] Furthermore, a fixing block is fixedly connected to the center of one side of the booster pump, and an installation hole is opened in the center of the outer side of the fixing block.

[0011] Furthermore, a mounting rod is threadedly connected to the inside of the mounting hole, and the mounting rod is fixedly connected to one side of the sensor.

[0012] Furthermore, it also includes limiting components;

[0013] The limiting component includes a fixing plate, a connecting groove, and a connecting block; the fixing plate is a set, all fixed to the upper side of one side of the booster pump, the connecting groove is opened on the outer side of the fixing plate, and the connecting block is inserted into the inner side of the connecting groove.

[0014] Furthermore, a connecting plate is fixedly connected to the outer end of the connecting block, and a set of snap-fit ​​plates are fixedly connected to the outer side of the connecting plate. The opposite ends of the snap-fit ​​plates are snapped into the connecting line, and the connecting plate is attracted to the fixing plate.

[0015] This utility model has the following beneficial effects:

[0016] This invention, by setting up a pressure boosting component and opening a through hole on the cylinder rod inside the cylinder body, allows oil to enter both the front and rear chambers of the cylinder body. The oil inlet is located in the rear chamber of the cylinder body. When the cylinder body needs to retract, the oil in the rear chamber quickly returns to the oil pipeline, while the oil in the front chamber slowly releases oil pressure through the through hole, thereby driving the cylinder body to retract quickly. When the oil inlet pipe in the rear chamber supplies oil, the quick-opening cylinder quickly extends and presses against the rolling mill rolls. At the same time, a pressure boosting pump is set up to supplement the pressure of the quick-opening cylinder of the rolling mill, which affects the wall thickness of the head and tail of the steel pipe, so that it reaches the ideal pressure to meet production needs. This ensures that the pressure of the original system remains unchanged while the pressure of the quick-opening cylinder of the rolling mill is boosted separately, thereby effectively controlling the wall thickness difference between the head and tail of the steel pipe. Furthermore, sensors and flashing lights can monitor and respond to the operating status of the pressure boosting pump. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the internal structure of the hydraulic cylinder of this utility model;

[0019] Figure 2 This is a schematic diagram of the booster pump of this utility model and the original system structure;

[0020] Figure 3 This is a schematic diagram of the booster pump structure of this utility model;

[0021] Figure 4 This is an exploded view of the sensor and the fixing block of this utility model;

[0022] Figure 5 This is an exploded structural diagram of the fixing plate and connecting plate of this utility model;

[0023] Figure 6 This is a schematic diagram of the bottom structure of the connecting plate of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 11. Cylinder body; 21. Through hole; 22. Booster pump; 23. Sensor; 24. Controller; 25. Vertical rod; 26. Warning light; 27. Connecting wire; 28. Fixing block; 29. ​​Mounting hole; 291. Mounting rod; 31. Fixing plate; 32. Connecting groove; 33. Connecting block; 34. Connecting plate; 35. Snap-fit ​​plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Please see Figures 1-4 As shown, this utility model is a quick-opening system pressurization device for steel pipe rolling, comprising:

[0029] Cylinder body 11;

[0030] The booster assembly includes a through hole 21, a booster pump 22, a sensor 23, a controller 24, and a warning light 26. The through hole 21 is opened on the surface of the oil lever inside the cylinder body 11. The booster pump 22 is externally located outside the cylinder. The sensor 23 is located in the center of one side of the booster pump 22. The controller 24 is fixed to one side of the top of the booster pump 22. The warning light 26 is located above the controller 24.

[0031] Through hole 21 allows oil to enter both the front and rear chambers of the cylinder. Through hole 21 is 6mm in diameter. Booster pump 22 provides pressure replenishment to the quick-opening cylinder of the rolling mill. Sensor 23 monitors the operation of booster pump 22. Sensor 23 is a Zhongge VT177230SH-04-02-00-0-0 pressure vibration transmitter sensor. Controller 24 controls the activation of warning light 26. Warning light 26 flashes to warn of any malfunction in booster pump 22. When booster pump 22 malfunctions, sensor 23 and warning light 26 work together to prompt staff to promptly inspect the booster pump 22.

[0032] A connecting wire 27 is fixedly connected between sensor 23 and controller 24, and booster pump 22 is connected to the original system of hydraulic cylinder through an installation wire;

[0033] A vertical rod 25 is fixedly connected to the top of the controller 24, and the top of the vertical rod 25 is fixedly connected to the bottom of the warning light 26.

[0034] The connecting cable 27 is used for the connection between the sensor 23 and the controller 24. The sensor 23 transmits information to the controller 24 through the connecting cable 27, and then the controller 24 controls the warning light 26 to flash. The vertical rod 25 is used for the connection between the controller 24 and the warning light 26.

[0035] A fixing block 28 is fixedly connected to the center of one side of the booster pump 22, and a mounting hole 29 is opened in the center of the outer side of the fixing block 28;

[0036] A mounting rod 291 is threaded inside the mounting hole 29, and the mounting rod 291 is fixedly connected to one side of the sensor 23.

[0037] The fixing block 28 is used to open the mounting hole 29. The mounting hole 29 is used to insert and connect the mounting rod 291. When the sensor 23 is installed, the mounting rod 291 is inserted into the mounting hole 29 and the sensor 23 is rotated, so that the sensor 23 drives the mounting rod 291 to rotate, causing the mounting rod 291 to be connected to the inner thread of the mounting hole 29 through the thread.

[0038] Working principle: When the component is not in use, the booster pump 22 is not in operation. When the component is in use, because the through hole 21 is opened on the cylinder rod inside the cylinder body 11, oil can enter both the front and rear chambers of the cylinder body 11. The oil inlet is located in the rear chamber of the cylinder body 11. When the cylinder body 11 needs to retract, the oil in the rear chamber quickly returns to the oil pipeline, and the oil in the front chamber slowly releases oil pressure through the through hole 21, thereby driving the cylinder body 11 to retract quickly. When the oil inlet pipe of the rear chamber supplies oil, the quick-opening cylinder quickly extends and presses against the rolling mill roll. Then the booster pump 22 provides pressure to the quick-opening cylinder of the rolling mill that affects the wall thickness of the head and tail of the steel pipe, so that it reaches the ideal pressure to meet the production requirements. This ensures that the pressure of the original system remains unchanged while the pressure of the quick-opening cylinder of the rolling mill is increased separately, thereby effectively controlling the wall thickness difference between the head and tail of the steel pipe.

[0039] When booster pump 22 malfunctions, sensor 23 detects the fault and transmits the information to controller 24 via connection line 27. Then, controller 24 controls warning light 26 to flash, enabling staff to promptly check booster pump 22 that is malfunctioning.

[0040] Please see Figure 3 , Figures 5-6 As shown, this embodiment, based on the above embodiment, further includes:

[0041] Limiting components;

[0042] The limiting assembly includes a fixing plate 31, a connecting groove 32, and a connecting block 33; the fixing plates 31 are a set, all fixed to the upper side of one side of the front of the booster pump 22, the connecting groove 32 is opened on the outer side of the fixing plate 31, and the connecting block 33 is inserted into the inner side of the connecting groove 32.

[0043] The fixing plate 31 is used to open the connecting groove 32, the connecting groove 32 is used to insert the connecting block 33, and the connecting block 33 is used to connect the connecting plate 34 and the fixing plate 31.

[0044] A connecting plate 34 is fixedly connected to the outer end of the connecting block 33. A set of snap-fit ​​plates 35 is fixedly connected to the outer side of the connecting plate 34. The opposite ends of the snap-fit ​​plates 35 snap-fit ​​with the connecting line 27. The connecting plate 34 is attracted to the fixing plate 31.

[0045] The connecting plate 34 is used to connect the snap-fit ​​plate 35. The snap-fit ​​plate 35 is a PVC plate with toughness, which can limit the connection line 27. The opposite ends of the connecting plate 34 have magnetic force. When the connecting block 33 is inserted into the connecting groove 32, the opposite ends of the connecting plate 34 are attracted to the fixing plate 31 by magnetic force, thereby assisting in limiting the connection plate 34 after insertion.

[0046] Working principle: When the component is not in use, the sensor 23 is connected to the fixed block 28. When the sensor 23 is connected to the fixed block 28, the connecting wire 27 is inserted between the snap-fit ​​plates 35. Since the snap-fit ​​plate 35 is made of PVC board, it is flexible and snaps the snap-fit ​​plate 35 with the connecting wire 27, so that the snap-fit ​​plate 35 limits the connecting wire 27 and prevents the connecting wire 27 from falling on the surface of the booster pump 22. When the snap-fit ​​plate 35 is damaged, the connecting plate 34 is pulled out by hand, so that the connecting plate 34 drives the connecting block 33 to move out of the connecting groove 32, so that the connecting plate 34 is separated from the fixed plate 31, thereby facilitating the replacement of a new snap-fit ​​plate 35 and connecting plate 34.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-opening system pressurization device for steel pipe rolling, characterized in that, include: Cylinder body (11); The booster assembly includes a through hole (21), a booster pump (22), a sensor (23), a controller (24), and a warning light (26). The through hole (21) is opened on the surface of the oil lever inside the cylinder body (11). The booster pump (22) is located outside the cylinder. The sensor (23) is located in the center of one side of the booster pump (22). The controller (24) is fixed to one side of the top of the booster pump (22). The warning light (26) is located above the controller (24).

2. The quick-opening system pressurization device for steel pipe rolling according to claim 1, characterized in that: The sensor (23) and the controller (24) are fixedly connected by a connecting line (27), and the booster pump (22) is connected to the original system of the oil cylinder through the installation line.

3. The quick-opening system pressurization device for steel pipe rolling according to claim 1, characterized in that: The top of the controller (24) is fixedly connected to a vertical rod (25), and the top of the vertical rod (25) is fixedly connected to the bottom of the warning light (26).

4. The quick-opening system pressurization device for steel pipe rolling according to claim 1, characterized in that: The booster pump (22) has a fixed block (28) fixedly connected to the center of one side of the outside, and a mounting hole (29) is opened in the center of the outer side of the fixed block (28).

5. The quick-opening system pressurization device for steel pipe rolling according to claim 4, characterized in that: The mounting hole (29) is threaded with a mounting rod (291) inside, and the mounting rod (291) is fixedly connected to one side of the sensor (23).

6. The quick-opening system pressurization device for steel pipe rolling according to claim 1, characterized in that: It also includes limit components; The limiting component includes a fixing plate (31), a connecting groove (32), and a connecting block (33); the fixing plate (31) is a set, and is fixed on the upper side of the front of the booster pump (22), the connecting groove (32) is opened on the outer side of the fixing plate (31), and the connecting block (33) is inserted into the inner side of the connecting groove (32).

7. The quick-opening system pressurization device for steel pipe rolling according to claim 6, characterized in that: The outer end of the connecting block (33) is fixedly connected to a connecting plate (34), and a set of snap-fit ​​plates (35) are fixedly connected to the outer side of the connecting plate (34). The opposite ends of the snap-fit ​​plates (35) are snapped into the connecting line (27), and the connecting plate (34) is attracted to the fixing plate (31).