Replacing device for oil-gas lubrication quick connector of rolling mill

Abstract

The invention discloses a replacing device for an oil-gas lubrication quick connector of a rolling mill. The replacing device comprises a first torsion arm used for clamping and twisting a contact angle and a second torsion arm used for clamping and twisting a fixed clamping plate. A first clamping end is arranged at the end of one side of the first torsion arm, a jaw type clamping groove is formed in the first clamping end, the clamping groove is defined by a first blocking arm, a second blocking arm and a connecting portion, the first blocking arm and the second blocking arm are symmetrical on the two sides, the connecting portion is connected with the two blocking arms, and the inner side face of the connecting portion is an arc face. The radian and the arc length of the cambered surface are matched with the radian and the arc length of the outer arc of one section of sector-shaped body forming the contact angle; the first torsion arm is provided with a first clamping end, the second torsion arm is provided with a second clamping end, the second clamping end comprises a first clamping arm and a second clamping arm which are oppositely arranged, and part or all of the fixed clamping plate is suitable for being clamped and embedded into a clamping jaw formed between the first clamping arm and the second clamping arm.

Description

Technical Field

[0001] The present invention relates to a replacement device for a rolling mill oil-gas lubrication quick connector, which is suitable for the installation and adjustment of rolling mill oil-gas lubrication quick connectors in the continuous metal production process of steel enterprises, especially in acid continuous rolling mill groups, and plays a key role in ensuring the shape control of strip steel produced by the rolling mill. Background Art

[0002] The oil-gas lubricated quick-connect couplings used in pickling cold rolling mills are crucial equipment. The stability of these couplings is crucial for the proper operation of the mill's intermediate and work rolls, and a crucial factor in achieving the mill's full production capacity. Due to the increasing demand for high-strength and ultra-high-strength steel production, and the increasing demands for material quality, the stability of the mill's equipment has become even more critical. As the most crucial component of a pickling cold rolling mill, the operating condition of these couplings has become a primary factor impacting the mill's full production capacity. Manufacturers domestic and international using these quick-connect couplings typically only have the manufacturer's installation instructions, lacking effective adjustment methods for addressing installation accuracy issues and resolving them. Furthermore, due to the varying operating conditions across manufacturers, no single, proven technology can be fully adopted.

[0003] Chinese patent application number 201821847714.6 discloses a lubricating oil system pipe joint connection device, comprising a connecting pipe with a 30-degree slope on the inner wall of each end of the connecting pipe. External threads are provided on the outer peripheral walls of each end of the connecting pipe. The left end of the connecting pipe is connected to a left locking nut with an O-ring via external threads, while the right end of the connecting pipe is connected to a right locking nut with an O-ring via external threads. A lubricating oil injection channel is vertically provided on the outer side of the right locking nut, arranged radially along the locking nut. The O-ring is a nitrile rubber seal. This utility model has a simple structure and can solve the problem of clamp fatigue, eliminating safety accidents.

[0004] Chinese patent application number 201711220824.X discloses an adjustable oil-air lubrication nozzle kit comprising a tubular nozzle body and a nozzle bracket for supporting the nozzle body. The nozzle bracket comprises a nozzle lower seat and an upper nozzle seat that is horizontally rotatably mounted on the nozzle lower seat. The nozzle body is movably mounted in the middle of the upper nozzle seat and rotates synchronously with the upper nozzle seat. The upper nozzle seat is also provided with an adjustment and fixing device for axially moving the nozzle body, and the lower nozzle seat is provided with a locking device for locking the upper nozzle seat. The present invention provides an adjustable oil-air lubrication nozzle and nozzle bracket that can quickly adjust the spray distance and spray angle of oil-air lubrication for bearings, thereby quickly determining the optimal spray distance and spray angle of the oil-air lubrication nozzle. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the problem of deformation of the spring inside the joint and damage and breakage of the contact head that are difficult to replace when the existing oil-gas lubricated quick joint of the pickling cold rolling mill is used, and to provide a replacement device for the oil-gas lubricated quick joint of the rolling mill that can effectively avoid the problem of poor lubrication caused by poor contact between the quick joint and the rolling mill support roll / working roll due to factors such as cracks in the contact angle, and the problem of difficulty in removing the built-in joint due to small working space.

[0006] The technical problem to be solved can be implemented through the following technical solutions.

[0007] A replacement device for oil-gas lubrication quick connector of a rolling mill, which is characterized by:

[0008] It comprises a first torsion arm for clamping or twisting the contact angle (01) and a second torsion arm for clamping or twisting the fixed clamping plate (03);

[0009] A first clamping end (10) is provided at one end of the first torsion arm, and the first clamping end (10) is provided with a jaw-type slot (09), which is formed by a first blocking arm (07) and a second blocking arm (11) symmetrically arranged on both sides and a connecting portion (12) connecting the two blocking arms, and the inner side surface of the connecting portion (12) is an arc surface (13), and the arc and arc length of the arc surface (13) are adapted to the arc and arc length of the outer arc of one section of the sector-shaped body constituting the contact angle (01);

[0010] The second torsion arm has a second clamping end, which includes a first clamping arm and a second clamping arm arranged opposite to each other, and part or all of the fixed clamping plate (3) is suitable for being clamped and embedded in the clamping jaw formed between the first clamping arm and the second clamping arm.

[0011] Furthermore, the first torsion arm includes a first handle (08) for facilitating twisting and applying force, and the second torsion arm includes a second handle (06) for facilitating twisting and applying force.

[0012] Furthermore, the included angle between the directions of the first barrier arm (07) and the second barrier arm (11) or the included angle of their extended lines is not less than the central angle of the sector corresponding to one section of the sector-shaped body of the contact angle (01).

[0013] Preferably, the included angle between the directions of the first barrier arm (07) and the second barrier arm (11) or the included angle of their extended lines is 46°-50°, preferably 48°.

[0014] Furthermore, the first clamping arm and the second clamping arm are provided with threaded holes for screwing in a tightening screw, and the front end of the tightening screw abuts against the fixed clamping plate (3).

[0015] Preferably, the second clamping end is a "U"-shaped clamp or a "C"-shaped clamp.

[0016] Preferably, the second torsion arm is in an "F"-shaped structure as a whole, the vertical portion of the "F"-shaped structure forms its force application handle, and the two horizontal portions of the "F"-shaped structure form the first clamping arm and the second clamping arm.

[0017] The replacement device using the above technical solution first utilizes an oil-gas lubricated quick-connector contact angle removal tool to remove and install the quick-connector's front contact angle online. This tracks the degradation of the quick-connector's front contact angle during online use, preventing poor lubrication caused by factors such as cracks in the contact angle, which can lead to poor contact between the quick-connector and the mill's support and work rolls. Secondly, the system utilizes an oil-gas lubricated internal joint removal tool to remove the oil-gas lubricated internal joint from the equipment, thus resolving the difficulty of accessing the internal joint due to limited working space. This provides strong support for on-site replacement operations. Using specialized tools for replacement inspection and processing improves replacement efficiency, stabilizes the unit's operating status, and ensures the production strip pattern. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 For oil and gas lubrication quick connector diagram;

[0019] Figure 2 This is a cross-sectional diagram of the contact angle of an oil-gas lubricated quick connector;

[0020] Figure 3 This is a cross-sectional view of the oil and gas lubrication fixed card plate;

[0021] Figure 4 Built-in joint removal tool for oil and gas lubrication;

[0022] Figure 5 Contact angle removal tool for oil and gas lubricated quick connectors;

[0023] Figure 6 This is the matching diagram of the contact angle removal tool and the fixed clamping plate of the oil and gas lubrication quick connector;

[0024] Figure 7 for Figure 5 Left view of;

[0025] In the figure: 01 - contact angle; 02 - built-in connector; 03 - fixing clamp; 04 - "U"-shaped clamp; 05 - fixing screw hole; 06 - second handle; 07 - first stop arm; 08 - first handle; 09 - slot; 10 - first clamping end; 11 - second stop arm; 12 - connecting part; 13 - arc surface; 14 - slot wall; 15 - slot wall. DETAILED DESCRIPTION

[0026] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1 to 7 The present invention provides a special device for replacing the oil-gas lubrication quick connector of a rolling mill, which mainly includes a contact angle removal tool for the oil-gas lubrication quick connector and a removal tool for the oil-gas lubrication built-in connector.

[0028] Oil and gas lubrication quick connector structure Figure 1 As shown: The quick connector is used for lubrication of the intermediate roll and work roll bearings of the rolling mill. Through the principle of continuous air supply and intermittent oil supply, the oil and gas are transported from the built-in connector 02 to the roller bearing seat from right to left in the figure; the built-in connector 02 has a contact angle 01 on the outside, and is composed of 4 semi-arcs of the same size (which can also be understood as the fan shape of a folding fan) that are sheathed outside the built-in connector to wrap the connector inside. The cross-sectional view is shown as follows Figure 2 As shown, the contact angle 01 is used to connect and fix the mechanical position of the roller bearing seat; the fixing plate 03 is used to fix the quick connector base and the spring. The cross-sectional view is as shown Figure 3 shown.

[0029] The oil and gas lubrication built-in joint removal tools mainly include: a "hollow 1 / 4 arc" tool with a handle, such as Figure 4 The front end of the first handle 08 is a first clamping end 10, which is provided with a jaw-like slot 09. This slot 09 is formed by a first and second symmetrical blocking arm 07 and 11, and a connecting portion 12 connecting the two blocking arms. The inner side of the connecting portion 12 is a curved surface 13, and the side opposite the curved surface 13 is the opening of the slot 09.

[0030] in, Figure 2 The center angle of the contact angle arc of the medium quick connector is 45° (the center angle of the sector corresponding to a single sector is 45°), the maximum length (the length of the outer arc of the sector) is 20mm, and the width (the distance between the inner and outer arcs of the sector) is 3mm; the center angle of the "hollow 1 / 4 arc" handle tool produced (referring to Figure 4 The angle between the two arms or their extension lines is 46-50 degrees, preferably 48 degrees, and the maximum length of the inner diameter (referring to Figure 4 The arc length of the middle arc surface 13 is 22 mm and the width is 4 mm (here refers to the shortest length of each barrier arm).

[0031] The contact angle removal tools for oil and gas lubrication quick connectors mainly include: Figure 5As shown, a clamping end (second clamping end) with a handle is similar to a tool in the shape of the letter "U" (the overall structure can be understood as an "F" shape). The working principle of this removal tool is as follows: the "U"-shaped clamp (or "C"-shaped clamp) 04 at the front end of the second handle 06 is clamped on the top of the fixed clamping plate 03. When in use, the tool clamps both sides of the fixed clamping plate 03 from top to bottom (that is, the fixed clamping plate 03 falls into the U-shaped clamping groove of the "U"-shaped clamp 04 and is limited and fixed). The tool is further used to tighten the screw holes 14 and 15 on the groove walls 14 and 15 on both sides of the "U"-shaped clamp 04 (see Figure 7 ) and screw in the locking screw to secure it. Figure 6 As shown, Figure 4 The tool is placed on the contact angle 01, and the two tools (respectively Figure 4 and Figure 5 The two tools shown in the figure) are used to fix the quick connector and Figure 4 The tool drives the thread to rotate, slowly loosens the contact angle until it is completely removed, and subsequently reinstalls and fixes the front contact angle of the quick connector.

[0032] That is, use a "hollow 1 / 4 arc" tool with a handle to cover the contact angle ( Figure 1 01), and then use oil and gas to lubricate the quick connector contact angle removal tool and clamp it on the quick connector fixing plate 03 to prevent the quick connector from rotating as a whole during the removal process. The two tools work together to fix the quick connector. Use a common socket wrench to remove the built-in connector ( Figure 1 No. 02) can be dismantled to eliminate the occurrence of the quick connector rotating during conventional dismantling, thereby improving the effectiveness and efficiency of the work, and then checking and judging the use of the built-in connector of the quick connector.

[0033] When using, first use oil and gas to lubricate the quick connector contact angle removal tool ( Figure 5 ) for the front contact angle of the quick connector ( Figure 1 01) for online disassembly and installation; according to the oil and gas lubrication built-in joint removal tool ( Figure 4 ) is used to lubricate the oil and gas built-in connector ( Figure 1 02) for dismantling, thereby completely solving the problem of the quick connector guide tube rotating during the dismantling operation, overcoming the shortcomings of the existing technology, and providing strong support for on-site replacement operations.

[0034] The present invention provides a dedicated device for replacing oil-gas lubricated quick connectors for rolling mills. The system utilizes an oil-gas lubricated quick connector contact angle removal tool to perform online removal and installation of the quick connector's front contact angle, tracks the deterioration of the quick connector's front contact angle when used online, and avoids poor lubrication caused by factors such as cracks in the contact angle, which can lead to poor contact between the quick connector and the mill's support rolls and work rolls. The system utilizes an oil-gas lubricated built-in connector removal tool to remove the oil-gas lubricated built-in connector from the equipment, thereby resolving the difficulty of removing the built-in connector due to limited working space. This solves the shortcomings of the existing technology, provides strong support for on-site replacement operations, stabilizes the equipment's operating status, and ensures the accuracy of the equipment's commissioning.

[0035] This invention utilizes a contact angle removal tool for oil-gas lubrication quick connectors to secure the oil-gas lubrication connector body, rather than simply using threads to secure it, thus avoiding operational malfunctions caused by thread damage. This improved technology utilizes a built-in oil-gas lubrication connector removal tool, allowing direct replacement of the oil-gas lubrication body, rather than requiring online adjustments. It also optimizes the assembly and disassembly of the oil-gas lubrication system, and its technical and structural features are completely different from existing technologies.

Claims

1. A replacement device for oil-gas lubrication quick connector of a rolling mill, characterized in that: It comprises a first torsion arm for clamping and twisting the contact angle (01) and a second torsion arm for clamping and twisting the fixed clamping plate (03); A first clamping end (10) is provided at one end of the first torsion arm, and the first clamping end (10) is provided with a jaw-type slot (09), which is formed by a first blocking arm (07) and a second blocking arm (11) symmetrically arranged on both sides and a connecting portion (12) connecting the two blocking arms, and the inner side surface of the connecting portion (12) is an arc surface (13), and the arc and arc length of the arc surface (13) are adapted to the arc and arc length of the outer arc of one section of the sector-shaped body constituting the contact angle (01); The second torsion arm has a second clamping end, which includes a first clamping arm and a second clamping arm arranged opposite to each other, and part or all of the fixed clamping plate (3) is suitable for being clamped and embedded in the clamping jaw formed between the first clamping arm and the second clamping arm.

2. The replacement device for the oil-gas lubrication quick connector of a rolling mill according to claim 1, characterized in that: The first torsion arm includes a first handle (08) for convenient twisting and applying force, and the second torsion arm includes a second handle (06) for convenient twisting and applying force.

3. The replacement device for the oil-gas lubrication quick connector of a rolling mill according to claim 1, characterized in that: The included angle between the directions of the first barrier arm (07) and the second barrier arm (11) or the included angle of their extended lines is not less than the central angle of the sector corresponding to one section of the sector-shaped body of the contact angle (01).

4. The replacement device for the oil-gas lubrication quick connector of a rolling mill according to claim 3, characterized in that: The included angle between the directions of the first barrier arm (07) and the second barrier arm (11) or the included angle between their extended lines is 46°-50°.

5. The replacement device for the oil-gas lubrication quick connector of a rolling mill according to claim 4, characterized in that: The included angle between the directions of the first barrier arm (07) and the second barrier arm (11) or the included angle between their extended lines is 48°.

6. The replacement device for the oil-gas lubrication quick connector of a rolling mill according to claim 1, characterized in that: The first clamping arm and the second clamping arm are provided with threaded holes for screwing in a tightening screw, and the front end of the tightening screw abuts against the fixed clamping plate (3).

7. The replacement device for the oil-gas lubrication quick connector of a rolling mill according to claim 1 or 6, characterized in that: The second clamping end is a "U"-shaped clamp or a "C"-shaped clamp.

8. The replacement device for the oil-gas lubrication quick connector of a rolling mill according to claim 1 or 7, characterized in that: The second torsion arm is in an "F"-shaped structure as a whole, wherein the vertical portion of the "F"-shaped structure forms its force application handle, and the two horizontal portions of the "F"-shaped structure form the first clamping arm and the second clamping arm.

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