Roller cooling mechanism of twin rolling mill

Abstract

The utility model discloses a roller cooling mechanism of a duplex rolling mill, and relates to the technical field of rolling mill roller cooling. The roller comprises a base, two mounting plates are fixedly connected to the top end of the base, two roller bodies are rotationally connected between the two mounting plates, and mounting frames are arranged on the sides, close to the roller bodies, between the two mounting plates. Nozzles are arranged on the periphery of a roller body and can transversely move back and forth along the outer side of the roller body along with reciprocating movement of a mounting frame, meanwhile, a first gear is connected with a rack in a meshed mode, a second bevel gear is connected with a first bevel gear in a meshed mode, and the second gear is connected with a gear ring in a meshed mode; therefore, the cooling efficiency is further improved, and the problems that the coverage range and the impact angle of a fixed nozzle are difficult to dynamically adapt to the temperature rise difference of different areas of the roller, local insufficient cooling or excessive cooling is likely to occur, and the thermal stress of the roller surface is uneven are solved.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill roll cooling technology, specifically a rolling mill roll cooling mechanism for a double rolling mill. Background Technology

[0002] During the rolling process of a traditional twin-roll mill, the rolls generate a large amount of heat due to high-speed friction and plastic deformation. Insufficient cooling can easily lead to thermal fatigue, accelerated wear, and even surface cracks on the roll surface, affecting rolling accuracy and roll life. Currently, most common roll cooling mechanisms adopt direct current jet cooling technology, which involves directly spraying coolant (such as water or emulsion) onto the roll surface through fixed nozzles.

[0003] However, the coolant sprayed in a DC jet tends to form a flowing liquid film on the roll surface, which hinders the effective contact between the subsequent coolant and the roll surface, resulting in insufficient heat exchange. Furthermore, the coverage range and impact angle of the fixed nozzle are difficult to dynamically adapt to the temperature rise differences in different areas of the roll, which can easily lead to localized insufficient or excessive cooling, causing uneven thermal stress on the roll surface. In order to address the above problems, the inventors have proposed a roll cooling mechanism for a twin-roll mill to solve the above problems. Utility Model Content

[0004] In order to solve the problem of low cooling efficiency of the roll cooling mechanism of a twin-roll mill, the purpose of this utility model is to provide a roll cooling mechanism for a twin-roll mill.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: a double-roll cooling mechanism for a rolling mill, comprising a base, two mounting plates fixedly connected to the top of the base, two rolling mill roll bodies rotatably connected between the two mounting plates, a mounting frame provided on the side of each mounting plate near the rolling mill roll body, and several mounting grooves provided on the opposite side of each of the two mounting frames, with an arc-shaped rod slidably engaged inside each mounting groove, an arc-shaped tube fixedly installed at the bottom of each arc-shaped rod, the arc-shaped tubes being interconnected, and centrally symmetrically distributed nozzles fixedly installed at the bottom end of each arc-shaped tube, and a... The reciprocating assembly includes a swing component located inside the mounting frame near the arc-shaped rod. Two guide plates are fixedly connected to the opposite sides of the two mounting frames. Two guide rods are fixedly connected between the two mounting plates near the guide plates. The guide plates are slidably engaged between the two guide rods. One end of the roller body shaft extends to one side of the mounting plate and is fixedly connected to a bevel gear three. A bevel gear four is fixedly connected to the outer side of the rotating rod near the bevel gear three. The bevel gear three and bevel gear four are meshed together. A flexible hose communicating with the inside of the arc-shaped tube is fixedly connected to one end of the arc-shaped tube.

[0006] Preferably, the reciprocating assembly includes a rotating rod rotatably connected to one side of one of the mounting plates. A U-shaped connecting rod, corresponding to the number of mounting frames, is rotatably connected to the rotating rod. A connecting rod is rotatably connected to one end of each U-shaped connecting rod. The end of the connecting rod away from the U-shaped connecting rod is rotatably connected to one side of the mounting frame. A movable slot is provided on one side of the mounting plate, through which the connecting rod movably passes. A stepper motor is fixedly mounted on the top of the mounting plate, and the drive end of the stepper motor is fixedly connected to the rotating rod.

[0007] Preferably, the swing assembly includes a crossbar rotatably connected inside the mounting frame. A bevel gear one is fixedly connected to the middle of the crossbar. A bevel gear two is rotatably connected to the inner wall of the mounting frame near the bevel gear one, and the bevel gear two meshes with the bevel gear one. A gear one is fixedly connected to the end of the bevel gear two away from the bevel gear one. A rack is fixedly connected between the two mounting plates near the gear one, and the gear one meshes with the rack. A gear two is fixedly connected to the outer side of the crossbar and inside the corresponding mounting groove. A toothed ring is fixedly connected to the outer side of the arc-shaped rod, and the gear two meshes with the toothed ring.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] By installing nozzles around the roll body, and having the nozzles move laterally back and forth along the outer side of the roll body as the mounting frame reciprocates, and by using gear one meshing with a rack and pinion, bevel gear two meshing with bevel gear one, and gear two meshing with a gear ring, the nozzles are driven to reciprocate along the roll body, further improving cooling efficiency. This avoids the problem that the coverage area and impact angle of fixed nozzles are difficult to dynamically adapt to the temperature rise differences in different areas of the roll, which can easily lead to insufficient or excessive cooling in some areas, causing uneven thermal stress on the roll surface. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the back structure of this utility model.

[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0014] Figure 4 This is a partial structural diagram of the present invention.

[0015] In the diagram: 1. Base; 2. Mounting plate; 3. Roller body; 4. Mounting frame; 5. Arc-shaped tube; 6. Nozzle; 7. Reciprocating assembly; 71. Rotating rod; 72. U-shaped connecting rod; 73. Connecting rod; 74. Movable groove; 8. Swing assembly; 81. Crossbar; 82. Bevel gear one; 83. Bevel gear two; 84. Gear one; 85. Rack; 86. Gear two; 87. Gear ring; 9. Arc-shaped rod; 10. Mounting groove; 11. Guide plate; 12. Guide rod; 13. Stepper motor; 14. Bevel gear three; 15. Bevel gear four; 16. Hose. Detailed Implementation

[0016] 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.

[0017] Example: Figure 1-4 As shown, this utility model provides a cooling mechanism for a double-roll mill, including a base 1. Two mounting plates 2 are fixedly connected to the top of the base 1. Two roll bodies 3 are rotatably connected between the two mounting plates 2. A mounting frame 4 is provided on the side of each mounting plate 2 near the roll body 3. Several mounting grooves 10 are provided on the opposite side of each mounting frame 4. Arc rods 9 are slidably engaged inside each mounting groove 10. Arc tubes 5 are fixedly installed at the bottom of each arc rod 9. The arc tubes 5 are connected to each other. Spray nozzles 6 are centrally symmetrically distributed at the bottom of the arc tubes 5. A reciprocating assembly 7 is provided on one side of the mounting plate 2. A swing assembly 8 is provided inside the mounting frame 4 on the side near the arc rod 9.

[0018] The reciprocating assembly 7 includes a rotating rod 71, which is rotatably connected to one side of one of the mounting plates 2. A U-shaped connecting rod 72 corresponding to the number of mounting frames 4 is rotatably connected to the rotating rod 71. A connecting rod 73 is rotatably connected to one end of each U-shaped connecting rod 72. The end of the connecting rod 73 away from the U-shaped connecting rod 72 is rotatably connected to one side of the mounting frame 4. A movable groove 74 is provided on one side of the mounting plate 2. The connecting rod 73 moves through the movable groove 74. A stepper motor 13 is fixedly installed at the top of the mounting plate 2. The drive end of the stepper motor 13 is fixedly connected to the rotating rod 71.

[0019] By adopting the above technical solution, the stepper motor 13 drives the rotating rod 71 to rotate, and at the same time drives the U-shaped connecting rod 72 to rotate. Utilizing the connecting rod 73, the end of the movable groove 74 away from the U-shaped connecting rod 72 is driven to perform a transverse reciprocating linear motion, thereby driving the mounting frame 4 and the components on the mounting frame 4 to reciprocate, and further driving the arc-shaped tube 5 and the nozzle 6 to move laterally reciprocating along the outer side of the roll body 3, thereby achieving a cooling operation on one surface area of ​​the roll body 3.

[0020] The swing assembly 8 includes a crossbar 81, which is rotatably connected inside the mounting frame 4. A bevel gear 82 is fixedly connected to the middle of the crossbar 81. A bevel gear 83 is rotatably connected to the inner wall of the mounting frame 4 near the bevel gear 82. The bevel gear 83 meshes with the bevel gear 82. A gear 84 is fixedly connected to the end of the bevel gear 83 away from the bevel gear 82. A rack 85 is fixedly connected between the two mounting plates 2 near the gear 84. The gear 84 meshes with the rack 85. A gear 86 is fixedly connected to the outer side of the crossbar 81 and inside the corresponding mounting groove 10. A toothed ring 87 is fixedly connected to the outer side of the arc-shaped rod 9. The gear 86 meshes with the toothed ring 87.

[0021] By adopting the above technical solution, when the mounting frame 4 moves laterally back and forth, the gear 84 meshes with the rack 85, and drives the gear 84 to roll along the top of the rack 85, and drives the bevel gear 83 to rotate. The bevel gear 83 meshes with the bevel gear 82, and drives the bevel gear 82, the crossbar 81 and the gear 86 to rotate. The gear 86 meshes with the gear ring 87, and drives the arc rod 9 to slide along the inside of the mounting groove 10, and drives the nozzle 6 to move back and forth around the roll body 3, thereby achieving cooling of the outer periphery of the roll body 3.

[0022] Two guide plates 11 are fixedly connected to the two mounting frames 4 on the side away from each other, and two guide rods 12 are fixedly connected to the side of the two mounting plates 2 near the guide plates 11. The guide plates 11 are slidably engaged between the two guide rods 12.

[0023] By adopting the above technical solution, the cooperation between the guide plate 11 and the guide rod 12 facilitates the lateral movement of the mounting frame 4, thereby improving the stability of the mounting frame 4 during movement.

[0024] One end of the rotating shaft of the roll body 3 extends to one side of the mounting plate 2 and is fixedly connected to a bevel gear 3 14. The outer side of the rotating rod 71 near the bevel gear 3 14 is fixedly connected to a bevel gear 4 15, and the bevel gear 3 14 and the bevel gear 4 15 are meshed together.

[0025] By adopting the above technical solution, when the rotating rod 71 rotates, it drives the bevel gear 4 15 to rotate. The meshing connection between the bevel gear 3 14 and the bevel gear 4 15 drives the two roll bodies 3 to rotate, realizing the pressing operation of metal. At the same time, the U-shaped connecting rod 72 rotates synchronously with the bevel gear 4 15. When the rotation speed of the roll body 3 increases, the oscillation frequency of the nozzle 6 also increases, ensuring that the coolant effectively adheres to the roll surface.

[0026] A flexible tube 16, which communicates with the interior of the arc-shaped tube 5, is fixedly connected to one end of the arc-shaped tube 5.

[0027] By adopting the above technical solution and setting the hose 16, it is convenient to deliver coolant into the interior of the arc-shaped pipe 5 without affecting the movement of the arc-shaped pipe 5.

[0028] Working principle: When cooling the double rolls, the stepper motor 13 drives the rotating rod 71 to rotate, which in turn drives the U-shaped connecting rod 72 to rotate. Utilizing the connecting rod 73, the movable groove 74 is driven to move laterally and reciprocally at the end away from the U-shaped connecting rod 72. This causes the mounting frame 4 and the components on the mounting frame 4 to move back and forth, which in turn causes the arc-shaped tube 5 and the nozzle 6 to move laterally and reciprocally along the outer side of the roll body 3, thereby achieving the cooling operation of one area of ​​the roll body 3.

[0029] Simultaneously, as the mounting frame 4 moves laterally back and forth, gear 84 meshes with rack 85, causing gear 84 to roll along the top of rack 85 and rotate bevel gear 83. Bevel gear 83 meshes with bevel gear 82, causing bevel gear 82, crossbar 81, and gear 86 to rotate. Gear 86 meshes with gear ring 87, causing arc rod 9 to slide along the inside of mounting groove 10 and causing nozzle 6 to reciprocate around the roll body 3, thereby cooling the outer periphery of the roll body 3 and further improving cooling efficiency.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A double-continuous-rolling mill roll cooling mechanism comprising a base (1), characterized in that: Two mounting plates (2) are fixedly connected to the top of the base (1). Two roller bodies (3) are rotatably connected between the two mounting plates (2). A mounting frame (4) is provided on the side of the two mounting plates (2) near the roller body (3). Several mounting grooves (10) are provided on the opposite side of the two mounting frames (4). An arc rod (9) is slidably engaged inside the mounting groove (10). An arc tube (5) is fixedly installed at the bottom of the arc rod (9). The arc tubes (5) are connected to each other. A nozzle (6) is fixedly installed at the bottom of the arc tube (5). A reciprocating component (7) is provided on one side of the mounting plate (2). A swing component (8) is provided inside the mounting frame (4) on the side near the arc rod (9).

2. A roll cooling mechanism for a double continuous mill as set forth in claim 1, characterized by The reciprocating assembly (7) includes a rotating rod (71), which is rotatably connected to one side of one of the mounting plates (2). A U-shaped connecting rod (72) corresponding to the number of mounting frames (4) is rotatably connected to the rotating rod (71). A connecting rod (73) is rotatably connected to one end of each U-shaped connecting rod (72). The end of the connecting rod (73) away from the U-shaped connecting rod (72) is rotatably connected to one side of the mounting frame (4). A movable groove (74) is provided on one side of the mounting plate (2), and the connecting rod (73) moves through the movable groove (74).

3. The roll cooling mechanism for a twin-roll mill as described in claim 1, characterized in that, The swing assembly (8) includes a crossbar (81) which is rotatably connected to the inside of the mounting frame (4). A bevel gear (82) is fixedly connected to the middle of the crossbar (81). A bevel gear (83) is rotatably connected to the inner wall of the mounting frame (4) near the bevel gear (82). The bevel gear (83) meshes with the bevel gear (82). A gear (84) is fixedly connected to the end of the bevel gear (83) away from the bevel gear (82). A rack (85) is fixedly connected to the side of the two mounting plates (2) near the gear (84). The gear (84) meshes with the rack (85). A gear (86) is fixedly connected to the outside of the crossbar (81) and inside the corresponding mounting groove (10). A toothed ring (87) is fixedly connected to the outside of the arc rod (9). The gear (86) meshes with the toothed ring (87).

4. A roll cooling mechanism for a double continuous mill as set forth in claim 1, characterized by Two guide plates (11) are fixedly connected to the two mounting frames (4) on the side away from each other, and two guide rods (12) are fixedly connected to the side of the two mounting plates (2) near the guide plates (11), and the guide plates (11) are slidably engaged between the two guide rods (12).

5. A roll cooling mechanism for a double continuous mill as set forth in claim 2, wherein One end of the rotating shaft of the roll body (3) extends to one side of the mounting plate (2) and is fixedly connected to a bevel gear three (14). The outer side of the rotating rod (71) near the bevel gear three (14) is fixedly connected to a bevel gear four (15), and the bevel gear three (14) and the bevel gear four (15) are meshed together.

6. A double-stand tandem rolling mill roll cooling mechanism according to claim 1, wherein A flexible tube (16) communicating with the inside of the arc-shaped tube (5) is fixedly connected to one end of the arc-shaped tube (5).

7. A double continuous rolling mill roll cooling mechanism according to claim 2, wherein A stepper motor (13) is fixedly installed on the top of the mounting plate (2), and the driving end of the stepper motor (13) is fixedly connected to the rotating rod (71).

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