A quick opening device for the joint of the down cylinder of the roll box of a descaling and straightening machine

Abstract

A kind of quick opening device for the joint of oil cylinder of roll box on scale breaking and straightening machine, mainly used for scale breaking and straightening machine.The upper part of the joint is screwed to the lower part of the oil cylinder, the screw rod of the upper part of the joint is screwed to the central screw hole of the upper part of the joint, the round nut connects the lower part of the joint to the lower end of the upper part of the joint through the screw rod of the upper part of the joint, and the supporting plate is installed on the lower part of the joint.The utility model can effectively improve the maintenance efficiency and operation safety of the scale breaking and straightening machine of the hot rolled steel coil pickling / acid pickling unit, has the advantages of quick connection and separation of the oil cylinder, convenient installation and disassembly, stable and reliable connection, convenient and efficient operation, strong adaptability, etc., solves the problems of complicated operation, long time-consuming and other problems existing in the traditional oil cylinder joint connection and disassembly mode, can meet the demand of fast and efficient production, and prolongs the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology in the metallurgical industry, specifically a quick-opening device for the upper roller box lower pressure cylinder joint of a scale breaking and straightening machine. Background Technology

[0002] Scaling and straightening machines are widely used in metal sheet processing and other fields. During their operation, the connection and separation of the upper roller box's lower pressure cylinder and the connector are frequent. In the existing structure of scaling and straightening machines, the upper roller box's lower pressure cylinder and the connector are usually connected by threads and secured with bolts. The traditional connection and disassembly of the upper roller box's lower pressure cylinder connector has many drawbacks. When maintenance, repair, or replacement of related parts of the lower pressure cylinder is required, operators need to spend a lot of time disassembling the connector. Furthermore, after prolonged use, the threaded connection between the lower pressure cylinder and the connector often experiences rust, damage, or seizing, significantly increasing the difficulty of disassembly. Often, additional tools and considerable external force are needed to complete the disassembly, which not only prolongs downtime but also causes significant damage to the equipment. Simultaneously, the traditional installation of the connector and lower pressure cylinder also requires operators to spend considerable time on precise alignment and tightening, making it difficult to meet the demands of fast and efficient production. Therefore, researching a quick-opening device for the upper roller box's lower pressure cylinder connector in scaling and straightening machines is particularly important. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this invention is to provide a quick-opening device for the lower pressure cylinder joint of the upper roller box of a scale breaking and straightening machine, so as to achieve the purpose of conveniently and quickly connecting and separating the joint from the lower pressure cylinder.

[0004] To achieve the above-mentioned objectives, this utility model provides a quick-opening device for the lower pressure cylinder connector of the upper roller box of a scale breaking and straightening machine, which includes a lower pressure cylinder, an upper part of the connector threadedly connected to the lower part of the lower pressure cylinder, a round nut connecting the lower part of the connector to the lower end of the upper part of the connector via a screw on the upper part of the connector, and a support plate mounted on the lower part of the connector.

[0005] Furthermore, the tray has symmetrical stepped holes on both sides, and the lower part of the connector has a stepped shaft structure. The stepped holes on both sides of the tray are hooked onto the boss of the stepped shaft at the lower part of the connector.

[0006] Furthermore, a roller is rotatably connected to the upper surface of the pallet, and the upper roller box is hung on the pallet via the roller. The roller is rotatably connected to the upper roller box. A roller box deflector block is installed on one side of the upper roller box. The cylindrical boss at the lower part of the roller box deflector block is adapted to the positioning holes of two V-shaped positioning blocks mounted on the roller changing trolley. The V-shaped surface of the V-shaped positioning block is adapted to the V-shaped surface of the cylindrical boss.

[0007] Furthermore, the roller changing trolley consists of a V-shaped positioning block, a ground rail, a push-pull cylinder, a push rod, a safety pin, and two rollers. The V-shaped positioning block is slidably connected to the hole in the roller changing trolley bracket. The push rod is connected to the V-shaped positioning block through a connecting plate. The safety pin is inserted into the hole in the bracket. The ground rail is fixed to the ground. Two rollers are rotatably connected to the ground rail. The rollers are rotatably connected to the roller changing trolley. The cylinder end of the push-pull cylinder is fixed to the ground, and the piston rod end is fixedly connected to the bottom of the roller changing trolley.

[0008] Furthermore, the middle part of the push rod is hinged to the bracket via a connecting shaft one, one end of the push rod is hinged to one end of the connecting plate via a connecting shaft two, and the other end of the connecting plate is hinged to a connecting shaft three mounted on the lower part of the V-shaped positioning block.

[0009] Furthermore, the safety pin is slidably connected to the hole in the bracket, the handle is fixed to the tail of the pin, and the front end of the pin is adapted to the positioning hole on the side of the V-shaped positioning block.

[0010] Compared with the prior art, when the pressing cylinder needs maintenance, repair, or replacement of related parts, this utility model only requires the use of common tools and a small amount of external force to disassemble the round nut, and then remove the lower part of the connector and the support plate in sequence, thereby disassembling the pressing cylinder for maintenance, repair, or replacement of related parts. After the pressing cylinder has been maintained, repaired, or its related parts replaced, simply align the installation position, install the lower part of the connector and the support plate in sequence, and tighten the round nut to complete the assembly. This can effectively improve the maintenance efficiency and operational safety of the hot-rolled steel coil pickling / sweeping unit's scaling and straightening machine. It has the advantages of quick connection and separation of the pressing cylinder, convenient installation and disassembly, stable and reliable connection, convenient and efficient operation, and strong adaptability. It solves the problems of cumbersome operation and long time consumption in the traditional cylinder connector connection and disassembly methods, and can meet the needs of fast and efficient production, extending the service life of the equipment. Attached Figure Description

[0011] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 yes Figure 1 The left view in the image.

[0013] Figure 3 yes Figure 1 A partial schematic diagram of the quick-opening device.

[0014] Figure 4 yes Figure 1 Enlarged view of I.

[0015] Figure 5 yes Figure 1 A simplified diagram of the connection structure between the V-shaped positioning block and the push rod.

[0016] In the diagram: 1. Lowering cylinder; 2. Upper part of the connector; 3. Lower part of the connector; 4. Round nut; 5. Support plate; 6. Quick-opening device; 7. Upper roller box; 8. Roller one; 9. Roller box steering block; 10. Roller changing trolley; 11. V-shaped positioning block; 12. Ground rail; 13. Push-pull cylinder; 14. Push rod; 15. Safety pin; 16. Roller two; 17. Screw; 18. Cylindrical boss; 19. V-shaped surface; 20. Bracket; 21. Connecting shaft one; 22. Connecting plate; 23. Connecting shaft two; 24. Connecting shaft three; 25. Pin; 26. Handle; 27. Side positioning hole. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the quick-opening device 6 for the lower pressure cylinder joint of the upper roller box of the scale breaking and straightening machine of this utility model includes two lower pressure cylinders 1. The upper part 2 of the joint is threadedly connected to the lower part of the lower pressure cylinder 1. The screw 17 of the upper part 2 of the joint is threadedly connected to the center screw hole of the upper part 2 of the joint. The round nut 4 connects the lower part 3 of the joint to the lower end of the upper part 2 of the joint through the screw 17 of the upper part 2 of the joint. The support plate 5 is mounted on the lower part 3 of the joint.

[0020] Preferably, the tray 5 has stepped holes symmetrically arranged on both sides, and the lower part 3 of the connector has a stepped shaft structure. The stepped holes on both sides of the tray 5 are hooked onto the boss of the stepped shaft of the lower part 3 of the connector. The round nut 4 is tightened, and the tray 5 and the lower part 3 of the connector are firmly connected together through the upper part 2 and the lower part 3 of the connector.

[0021] Preferably, the roller changing trolley 10 comprises a V-shaped positioning block 11, a ground rail 12, a push-pull cylinder 13, a push rod 14, a safety pin 15, and rollers 16. The V-shaped positioning block 11 is slidably connected to the hole in the bracket 20 of the roller changing trolley 10. The push rod 14 is connected to the V-shaped positioning block 11 through a connecting plate 2. The safety pin 15 is inserted into the hole in the bracket 20. The ground rail 12 is fixed to the ground, and rollers 16 are rotatably connected to the ground rail 12. The rollers 16 are rotatably connected to the roller changing trolley 10. The cylinder end of the push-pull cylinder 13 is fixed to the ground, and the piston rod end is fixedly connected to the bottom of the roller changing trolley 10. Driving the push-pull cylinder 13 causes the piston rod to push the roller changing trolley 10, causing the rollers 16 to roll on the ground rail 12, thus moving the roller changing trolley 10 to the working position.

[0022] Preferably, a roller 8 is rotatably connected to the upper surface of the pallet 5. The upper roller box 7 is hung on the pallet 5 via the roller 8 mounted thereon. The roller 8 is rotatably connected to the upper roller box 7. Two roller box deflecting blocks 9 are mounted on one side of the upper roller box 7. The cylindrical bosses 18 at the lower part of the two roller box deflecting blocks 9 are respectively adapted to the positioning holes of two V-shaped positioning blocks 11 mounted on the roller changing trolley 10. The V-shaped surface 19 of the V-shaped positioning block 11 and the V-shaped surface of the cylindrical boss 18 are respectively matched. The push rod 14 is hinged to the bracket 20 via a connecting shaft 21 at its middle part, and one end of the push rod 14 is hinged to one end of the connecting plate 22 via a connecting shaft 23 at its other end. The connecting plate 22 is hinged to a connecting shaft 24 mounted on the lower part of the V-shaped positioning block 11. The safety pin 15 has its pin 25 slidably connected to the hole in the bracket 20. The handle 26 is fixed to the tail of the pin 25, and the front end of the pin 25 is adapted to the positioning hole 27 on the side of the V-shaped positioning block 11. When the roller changing trolley 10 moves to the working position, the V-shaped positioning block 11 is pushed up by pressing down the push rod 14, so that the cylindrical boss 18 of the roller box turning block 9 is inserted into the positioning hole in the V-shaped positioning block 11. Then, the handle 26 is pushed to insert the pin 25 into the positioning hole 27 on the side of the V-shaped positioning block 11, so that the position of the V-shaped positioning block 11 is fixed, thereby ensuring that the roller changing trolley 10 and the upper roller box 7 are fixed and stable.

[0023] When the hydraulic cylinder 1 needs maintenance, repair, or replacement of related parts, the procedure for disassembling the quick-opening device 6 is as follows: 1. Drive the push-pull hydraulic cylinder 13 to push the roller changing trolley 10, so that the second roller 16 rolls on the ground rail 12; 2. When the roller changing trolley 10 moves to the working position, the push rod 14 is pressed down and the V-shaped positioning block 11 is pushed up, so that the cylindrical boss 18 of the roller box turning block 9 is inserted into the positioning hole in the V-shaped positioning block 11. 3. Insert the safety pin 15 into the positioning hole 27 on the side of the V-shaped positioning block 11 to position the V-shaped positioning block 11 and ensure that the roller changing trolley 10 and the upper roller box 7 are fixed and stable. 4. Drive the push-pull cylinder 13 to pull the roller changing trolley 10, which in turn pulls the upper roller box 7, so that the second roller 16 rolls on the ground rail 12, and at the same time, the first roller 8 rolls on the pallet 5. 5. After moving the upper roller box 7 to the roller changing position, hoist the upper roller box 7. 6. Use common tools and minimal external force to remove the round nuts 4 on both sides, remove the lower part 3 of the connector, and then remove the support plate 5; 7. Disassemble the lowering cylinder 1 and the upper part 2 of the connector to complete the disassembly of the quick-opening device 6.

[0024] After the hydraulic cylinder 1 has undergone maintenance, repair, or replacement of relevant parts, the operation procedure for installing the quick-opening device 6 is as follows: 1. After tightening the upper part 2 of the connector onto the lower pressure cylinder 1, install the lower pressure cylinder 1; 2. Place the pallet 5 on the boss of the lower 3-step shaft of the connector; 3. Align the lower part 3 of the two side connectors with the screw 17 of the upper part 2 of the connector, tighten the round nut 4, and complete the assembly of the quick-opening device 6; 4. Place the roller 8 on one side of the upper roller box 7 on the upper surface of the pallet 5, and place the roller box deflector block 9 on the other side on the V-shaped positioning block 11. 5. Drive the push-pull hydraulic cylinder 13 to push the roller changing trolley 10, so that the roller 16 rolls on the ground rail 12; 6. After moving the roller changing trolley 10 to the working position, pull out the safety pin 15, pull up the push rod 14, and push down the V-shaped positioning block 11 to disengage the roller box deflector block 9 from the V-shaped positioning block 11. 7. The upper roller box 7 is pushed onto the tray 5 to the working position by the roller changing trolley 10 to complete the assembly of the upper roller box 7.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A quick-opening device for the lower pressure cylinder joint of the upper roller box of a scale breaking and straightening machine, characterized in that: The quick-opening device (6) includes a pressing cylinder (1), an upper part (2) of the connector is threaded to the lower part of the pressing cylinder (1), a round nut (4) connects the lower part (3) of the connector to the lower end of the upper part (2) of the connector through the screw (17) of the upper part (2), and a support plate (5) is mounted on the lower part (3) of the connector.

2. A quick opening device for the joint of the down press cylinder of the roll box of the descaling and straightening machine according to claim 1, characterized in that: The tray (5) has stepped holes symmetrically arranged on both sides, and the lower part (3) of the connector is a stepped shaft structure. The stepped holes on both sides of the tray (5) are hooked onto the boss of the stepped shaft of the lower part (3) of the connector.

3. A quick opening device for the joint of the down press cylinder of the roll box of the descaling and straightening machine according to claim 1, characterized in that: Roller 1 (8) is rotatably connected to the upper surface of the pallet (5). The upper roller box (7) is hung on the pallet (5) by the roller 1 (8) mounted on it. The roller 1 (8) is rotatably connected to the upper roller box (7). A roller box deflector block (9) is mounted on one side of the upper roller box (7). The cylindrical boss (18) at the lower part of the roller box deflector block (9) is adapted to the positioning holes of two V-shaped positioning blocks (11) mounted on the roller changing trolley (10). The V-shaped surface (19) of the V-shaped positioning block (11) is adapted to the V-shaped surface of the cylindrical boss (18).

4. A quick opening device for the joint of the down press cylinder of the scale breaker and straightener upper roll box according to claim 3, characterized in that: The roller changing trolley (10) consists of a V-shaped positioning block (11), a ground rail (12), a push-pull cylinder (13), a push rod (14), a safety pin (15), and a second roller (16). The V-shaped positioning block (11) is slidably connected in the hole of the bracket (20) of the roller changing trolley (10). The push rod (14) is connected to the V-shaped positioning block (11) through a connecting plate. The safety pin (15) is inserted into the hole of the bracket (20). The ground rail (12) is fixed on the ground. The second roller (16) is rotatably connected on the ground rail (12). The second roller (16) is rotatably connected to the roller changing trolley (10). The cylinder end of the push-pull cylinder (13) is fixed on the ground, and the piston rod end is fixedly connected to the bottom of the roller changing trolley (10).

5. A quick-opening device for the lower pressure cylinder joint of the upper roller box of a scale breaking and straightening machine according to claim 4, characterized in that: The middle part of the push rod (14) is hinged to the bracket (20) through the first connecting shaft (21), one end of the push rod (14) is hinged to one end of the connecting plate (22) through the second connecting shaft (23), and the other end of the connecting plate (22) is hinged to the third connecting shaft (24) installed at the lower part of the V-shaped positioning block (11).

6. A quick opening device for the joint of the down cylinder of the roll box of the descaling and straightening machine according to claim 4, characterized in that: The pin (25) of the safety pin (15) is slidably connected to the hole of the bracket (20), the handle (26) is fixed at the tail of the pin (25), and the front end of the pin (25) is adapted to the side positioning hole (27) of the V-shaped positioning block (11).

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