Roll gap adjusting box, rolling system and using method

Abstract

The invention relates to the technical field of rolling mills, in particular to a roll gap adjusting box, a rolling system and a using method. A roller gap adjusting box comprises a box body, a roller gap adjusting mechanism, a roller gap adjusting mechanism and a roller gap adjusting mechanism, the first roller shaft and the second roller shaft are arranged in a meshed mode, the first roller shaft and the second roller shaft partially penetrate through the box body and stretch into the containing space, the end, stretching out of the box body, of the first roller shaft is arranged on the first roller ring in a sleeved mode, and the end, stretching out of the box body, of the second roller shaft is arranged on the second roller ring in a sleeved mode. A roll collar channel is formed between the first roll collar and the second roll collar, and rolled metal can penetrate through the roll collar channel; the first eccentric sleeve is arranged between the first roller shaft and the box body, and the second eccentric sleeve is arranged between the second roller shaft and the box body. The problems that in the roll gap adjusting process, the axis of a roll shaft on one side of a device is fixed, the axis of a roll shaft on the other side of the device is movable, the position of a rolling center line fluctuates, rods are stacked between rolling mills, and production is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mills, and in particular to a roll gap adjustment box, a rolling system and a use method thereof. Background Art

[0002] Roll gap adjustment refers to a technology that controls the rolling process by adjusting the gap between the rolls (i.e., roll gap) during the rolling process. The size of the roll gap directly affects the size and quality of the rolled product. The main purpose of roll gap adjustment is to ensure the smooth progress of the rolling process, to ensure that the rolled product has the correct size and shape, and that the reduction is evenly distributed. Roll gap adjustment plays an important role in steel rolling production, and it is directly related to product quality and production efficiency.

[0003] In the existing finishing rolling workstation of nonferrous metal continuous casting and rolling equipment, the axis of the roll shaft on one side is fixed and the axis of the roll shaft on the other side is movable. The roll gap can only be adjusted by unilaterally moving the movable roll shaft toward the fixed roll shaft. During the entire adjustment process, the rolling centerline position will fluctuate, resulting in rod accumulation between the rolling mills, affecting production. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that, during the adjustment process of the roll gap, the axis of the roll shaft on one side of the device is fixed and the axis of the roll shaft on the other side is movable, which will cause fluctuations in the position of the rolling center line, resulting in rod stacking between the rolling mills and affecting production, thereby providing a roll gap adjustment box, a rolling system and a method of use.

[0005] In order to solve the above problems, the present invention provides a roll gap adjustment box, comprising:

[0006] A box body, wherein a receiving space is provided in the box body;

[0007] A first rolling roller shaft and a second rolling roller shaft, the first rolling roller shaft and the second rolling roller shaft are meshed, the first rolling roller shaft and the second rolling roller shaft partially pass through the box body and extend into the accommodating space, the end of the first rolling roller shaft extending out of the box body is sleeved on the first rolling ring, the end of the second rolling roller shaft extending out of the box body is sleeved on the second rolling ring, a rolling ring channel is formed between the first rolling ring and the second rolling ring, and the rolling ring channel is suitable for passing the rolled material;

[0008] A first eccentric sleeve and a second eccentric sleeve, wherein the first eccentric sleeve is arranged between the first roller shaft and the box body, and the second eccentric sleeve is arranged between the second roller shaft and the box body, and the first eccentric sleeve and the second eccentric sleeve are rotated to change the center distance between the first roller shaft and the second roller shaft, so as to drive the roller ring channel to change.

[0009] Optionally, the central axis of the inner circumference of the first eccentric sleeve coincides with the central axis of the first rolling roller shaft, and the central axis of the inner circumference of the first eccentric sleeve does not coincide with the central axis of the outer circumference; the central axis of the inner circumference of the second eccentric sleeve coincides with the central axis of the second rolling roller shaft, and the central axis of the inner circumference of the second eccentric sleeve does not coincide with the central axis of the outer circumference.

[0010] Optionally, the first eccentric sleeve is provided with a first large end and a first small end, the outer circumferential surface of the first large end is fitted with the inner hole of the first side plate of the box body, an oil film bearing is provided between the inner circumferential surface of the first large end and the outer circumferential surface of the first shoulder of the first rolling roller shaft, the outer circumferential surface of the first small end is fitted with the inner hole of the second side plate of the box body, and an oil film bearing is provided between the inner circumferential surface of the first small end and the outer circumferential surface of the second shoulder of the first rolling roller shaft; the second eccentric sleeve is provided with a second large end and a second small end, the outer circumferential surface of the second large end is fitted with the inner hole of the first side plate of the box body, an oil film bearing is provided between the inner circumferential surface of the second large end and the outer circumferential surface of the third shoulder of the second rolling roller shaft, the outer circumferential surface of the second small end is fitted with the inner hole of the second side plate of the box body, and an oil film bearing is provided between the inner circumferential surface of the second small end and the outer circumferential surface of the fourth shoulder of the second rolling roller shaft.

[0011] Optionally, the first eccentric sleeve also includes a first intermediate sleeve, which is fixedly connected to the first large end and the first small end respectively, and the cross-section of the first intermediate sleeve is arc-shaped; the second eccentric sleeve also includes a second intermediate sleeve, which is fixedly connected to the second large end and the second small end respectively, and the cross-section of the second intermediate sleeve is arc-shaped.

[0012] Optionally, the first intermediate sleeve is provided with a first connecting end, the first connecting end is connected to a first connecting piece, the first connecting piece is internally sleeved in the first connecting rod, and the first connecting piece is threadedly connected to the first connecting rod; the second intermediate sleeve is provided with a second connecting end, the second connecting end is connected to a second connecting piece, the second connecting piece is internally sleeved in the second connecting rod, and the second connecting piece is threadedly connected to the second connecting rod, the end of one end of the first connecting rod and the end of one end of the second connecting rod are correspondingly arranged, the rotation direction of the external thread of the first connecting rod is opposite to the rotation direction of the external thread of the second connecting rod, and the first connecting rod and the second connecting rod rotate synchronously and at the same speed.

[0013] Optionally, it also includes a support seat, a connecting sleeve is rotatably provided in the inner hole of the support seat, one end of the first connecting rod is rotatably connected to the box body, the other end of the first connecting rod is arranged in the connecting sleeve, one end of the second connecting rod is rotatably connected to the box body, the other end of the second connecting rod is arranged in the connecting sleeve, the first connecting rod and the second connecting rod are respectively rotatably connected to the connecting sleeve, and the central axis of the first connecting rod coincides with the central axis of the second connecting rod.

[0014] Optionally, it further includes a driving shaft, wherein the driving shaft portion is disposed in the accommodating space, and the driving shaft is meshed with the first rolling roller shaft.

[0015] Optionally, the number of teeth of the cylindrical gear of the driving shaft, the number of teeth of the cylindrical gear of the first roller shaft, and the number of teeth of the cylindrical gear of the second roller shaft are all equal.

[0016] A rolling system comprises the above-mentioned roll gap adjustment box.

[0017] A method for using a roll gap adjustment box, rotating a first eccentric sleeve and a second eccentric sleeve to change the center distance of a first roller shaft and a second roller shaft, the first eccentric sleeve and the second eccentric sleeve have the same rotation speed and opposite rotation direction, the first roller shaft drives the first roller ring to rotate, the second roller shaft drives the second roller ring to rotate, the first roller shaft and the second roller shaft have the same rotation speed to drive the roller ring channel to change.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. The roll gap adjustment box provided by the present invention comprises: a box body, which is arranged in the accommodating space; a first rolling roller shaft and a second rolling roller shaft are meshedly arranged, the first rolling roller shaft and the second rolling roller shaft partially pass through the box body and extend into the accommodating space, the end of the first rolling roller shaft extending out of the box body is sleeved on the first roller ring, and the end of the second rolling roller shaft extending out of the box body is sleeved on the second roller ring, a roller ring channel is formed between the first roller ring and the second roller ring, and the roller ring channel is suitable for passing the rolled material; a first eccentric sleeve and a second eccentric sleeve, the first eccentric sleeve is arranged between the first rolling roller shaft and the box body, and the second eccentric sleeve is arranged between the second rolling roller shaft and the box body, the first eccentric sleeve and the second eccentric sleeve are rotated to change the center distance of the first rolling roller shaft and the second rolling roller shaft, so as to drive the roller ring channel to change.

[0020] The device is arranged so that the central axes of the two roller shafts can be offset. The central axes of the two roller shafts are offset at the same time by rotating the first eccentric sleeve and the second eccentric sleeve at the same time. The first eccentric sleeve and the second eccentric sleeve have the same rotation speed and opposite rotation direction, so that the first eccentric sleeve and the second eccentric sleeve are deflected symmetrically at the same time, thereby causing the central axes of the first roller shaft and the second roller shaft to be offset at the same time, ensuring that the rolling center line between the two remains unchanged, so as to avoid the fluctuation of the rolling center line position, which may cause the problem of rod piling between the rolling mills and affect production.

[0021] 2. In the roller gap adjustment box provided by the present invention, the central axis of the inner circumference of the first eccentric sleeve coincides with the central axis of the first rolling roller shaft, while the central axis of the inner circumference of the first eccentric sleeve does not coincide with the central axis of the outer circumference; the central axis of the inner circumference of the second eccentric sleeve coincides with the central axis of the second rolling roller shaft, while the central axis of the inner circumference of the second eccentric sleeve does not coincide with the central axis of the outer circumference, thereby realizing the eccentric setting of the inner and outer surfaces of the eccentric sleeve, so that when the outer surface rotates relative to the box body, the central axis of the rolling roller shaft is driven to deviate.

[0022] 3. The roller gap adjustment box provided by the present invention comprises a first eccentric sleeve with a first large end and a first small end, the outer circumference of the first large end is fitted with the inner hole of the first side plate of the box body, an oil film bearing is provided between the inner circumference of the first large end and the outer circumference of the first shoulder of the first roller shaft, the outer circumference of the first small end is fitted with the inner hole of the second side plate of the box body, and an oil film bearing is provided between the inner circumference of the first small end and the outer circumference of the second shoulder of the first roller shaft; the second eccentric sleeve comprises a second large end and a second small end, the outer circumference of the second large end is fitted with the inner hole of the first side plate of the box body, an oil film bearing is provided between the inner circumference of the second large end and the outer circumference of the third shoulder of the second roller shaft, the outer circumference of the second small end is fitted with the inner hole of the second side plate of the box body, and an oil film bearing is provided between the inner circumference of the second small end and the outer circumference of the fourth shoulder of the second roller shaft. The end of the roller shaft is supported by the arrangement of the large end and the small end. The oil film bearing bears the load between the big end and the shaft shoulder, or the small end and the shaft shoulder.

[0023] 4. The roller gap adjustment box provided by the present invention, the first eccentric sleeve also includes a first intermediate sleeve, the first intermediate sleeve is fixedly connected to the first large end and the first small end respectively, and the cross-section of the first intermediate sleeve is arc-shaped; the second eccentric sleeve also includes a second intermediate sleeve, the second intermediate sleeve is fixedly connected to the second large end and the second small end respectively, and the cross-section of the second intermediate sleeve is arc-shaped, and the fixed connection between the large end and the small end is achieved by the intermediate sleeve.

[0024] 5. The roller gap adjustment box provided by the present invention has a first intermediate sleeve provided with a first connection end, the first connection end is connected with a first connection piece, the first connection piece is sleeved inside the first connection rod, and the first connection piece is threadedly connected to the first connection rod; the second intermediate sleeve is provided with a second connection end, the second connection end is connected with a second connection piece, the second connection piece is sleeved inside the second connection rod, and the second connection piece is threadedly connected to the second connection rod, the end of one end of the first connection rod and the end of one end of the second connection rod are correspondingly arranged, the rotation direction of the external thread of the first connection rod is opposite to the rotation direction of the external thread of the second connection rod, and the first connection rod and the second connection rod rotate synchronously and at the same speed. By adjusting the setting of the connection piece and the opposite rotation directions of the first connection rod and the second connection rod, the connection piece and the connection rod are threadedly connected, and the first connection rod and the second connection rod rotate synchronously and at the same speed, so that the swing angle of the connection end of the first intermediate sleeve driven by the first connection rod and the swing angle of the connection end of the second intermediate sleeve driven by the second connection rod are the same, so as to ensure that the center line of the roller ring channel formed by the first roller ring and the second roller ring remains unchanged.

[0025] 6. The roller gap adjustment box provided by the present invention also includes a support seat, a connecting sleeve is rotatably provided in the inner hole of the support seat, one end of the first connecting rod is rotatably connected to the box body, the other end of the first connecting rod is arranged in the connecting sleeve, one end of the second connecting rod is rotatably connected to the box body, the other end of the second connecting rod is arranged in the connecting sleeve, the first connecting rod and the second connecting rod are rotatably connected to the connecting sleeve respectively, and the central axis of the first connecting rod coincides with the central axis of the second connecting rod. By rotating the connecting rod on one side, the connecting sleeve will make the connecting rod on the other side rotate synchronously, driving the first intermediate sleeve and the second intermediate sleeve to move symmetrically inward or outward by the same distance.

[0026] 7. In the roller gap adjustment box provided by the present invention, the driving shaft part is arranged in the accommodating space, the driving shaft is meshed with the first roller shaft, the driving shaft drives the first roller shaft to rotate, and then the first roller shaft drives the second roller shaft to rotate.

[0027] 8. In the roller gap adjustment box provided by the present invention, the number of teeth of the cylindrical gear of the driving shaft, the number of teeth of the cylindrical gear of the first roller shaft, and the number of teeth of the cylindrical gear of the second roller shaft are all equal, so that the driving shaft and the first roller shaft, and the first roller shaft and the second roller shaft can rotate at the same speed.

[0028] 9. The rolling system provided by the present invention has the advantages described in any one of the above items because it adopts the roll gap adjustment box described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A top view of a roll gap adjustment box provided in an embodiment of the present invention;

[0031] Figure 2 for Figure 1 The cross-sectional view along the A-A direction is shown;

[0032] Figure 3 for Figure 2 The cross-sectional view along the B-B direction is shown;

[0033] Figure 4 for Figure 1 The cross-sectional view along the C-C direction is shown;

[0034] Figure 5 It is a schematic diagram of a roll gap adjustment box provided in an embodiment of the present invention when the roll gap of the roll ring channel is at a minimum;

[0035] Figure 6 It is a schematic diagram of the roll gap of the roll ring channel of the roll gap adjustment box provided in an embodiment of the present invention when the roll gap is maximum.

[0036] Explanation of the reference numerals: 1. box body; 101. first side plate; 102. second side plate; 2. rolling direction; 3. first roller shaft; 4. second roller shaft; 5. first eccentric sleeve; 501. first large end; 502. first small end; 503. first intermediate sleeve; 504. first connecting end; 6. second eccentric sleeve; 601. second large end; 602. second small end; 603. second connecting end; 7. first roller ring; 701. roller ring channel; 8. second roller ring; 9. bearing; 10. top cover; 11. first connecting rod; 12. second connecting rod; 13. driving shaft; 14. second connecting piece; 15. support seat; 16. end cover; 17. first connecting piece; 18. connecting sleeve. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] like Figure 1 A specific embodiment of the roll gap adjustment box shown in -6 includes: a box body 1, and a first rolling roller shaft 3 and a second rolling roller shaft 4 that are meshed and arranged, and a rolling direction 2 is the movement direction of the rolled material, wherein the first rolling roller shaft 3 and the second rolling roller shaft 4 partially extend into the accommodating space of the box body 1, and the size and specification parameters of the first rolling roller shaft 3 and the second rolling roller shaft 4 are exactly the same, that is, the number of teeth of the cylindrical gear of the first rolling roller shaft 3 and the number of teeth of the cylindrical gear of the second rolling roller shaft 4 are equal.

[0042] like Figure 1 , Figure 2 As shown, a containing space is provided in the box body 1, and the box body 1 has a first side plate 101 and a second side plate 102 which are arranged in parallel.

[0043] like Figure 1 , Figure 2 As shown, the end of the first roller shaft 3 extending out of the box body 1 is provided with a first roller ring 7, and the end of the second roller shaft 4 extending out of the box body 1 is provided with a second roller ring 8. A circular roller ring channel 701 is formed between the first roller ring 7 and the second roller ring 8. The roller ring channel 701 is suitable for passing the rolled material. Specifically, the rolled material is a wire or a bar. Figure 2 As shown, the ends of the first roller shaft 3 and the second roller shaft 4 extending out of the box body 1 are also provided with a top cover 10, which abuts against the side of the first roller ring 7 or the second roller ring 8, and is fixedly connected to the first roller shaft 3 and the second roller shaft 4 by bolts.

[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it also includes a first eccentric sleeve 5 and a second eccentric sleeve 6, and the sizes and specifications of the first eccentric sleeve 5 and the second eccentric sleeve 6 are exactly the same. It should be noted that the central axis of the inner circumference of the first eccentric sleeve 5 coincides with the central axis of the first roller shaft 3, and the central axis of the inner circumference of the first eccentric sleeve 5 does not coincide with the central axis of the outer circumference; the central axis of the inner circumference of the second eccentric sleeve 6 coincides with the central axis of the second roller shaft 4, and the central axis of the inner circumference of the second eccentric sleeve 6 does not coincide with the central axis of the outer circumference. Figure 2 , Figure 4 As shown, the first eccentric sleeve 5 is provided with a first large end 501 and a first small end 502, the outer circumference of the first large end 501 is fitted with the inner hole of the first side plate 101 of the box body 1, an oil film bearing is provided between the inner circumference of the first large end 501 and the outer circumference of the first shoulder of the first roller shaft 3, the outer circumference of the first small end 502 is fitted with the inner hole of the second side plate 102 of the box body 1, and an oil film bearing is provided between the inner circumference of the first small end 502 and the outer circumference of the second shoulder of the first roller shaft 3 The second eccentric sleeve 6 is provided with a second large end 601 and a second small end 602. The outer circumference of the second large end 601 is fitted with the inner hole of the first side plate 101 of the box body 1. An oil film bearing is provided between the inner circumference of the second large end 601 and the outer circumference of the third shoulder of the second roller shaft 4. The outer circumference of the second small end 602 is fitted with the inner hole of the second side plate 102 of the box body 1. An oil film bearing is provided between the inner circumference of the second small end 602 and the outer circumference of the fourth shoulder of the second roller shaft 4. To achieve the connection between the large end and the small end, as shown in FIG. Figure 4 As shown, the first eccentric sleeve 5 also includes a first intermediate sleeve 503, which is fixedly connected to the first large end 501 and the first small end 502, respectively, and has an arc-shaped cross section; the second eccentric sleeve 6 also includes a second intermediate sleeve, which is fixedly connected to the second large end 601 and the second small end 602, respectively, and has an arc-shaped cross section. Figure 2 As shown, two end covers 16 are also included, one end cover 16 is fixedly connected to the first small end 502, and the other end cover 16 is fixedly connected to the second small end 602, and the ends of the first roller shaft 3 and the second roller shaft 4 extending into the accommodating space are respectively sleeved with bearings 9.

[0045] like Figure 3 , Figure 4As shown, the first intermediate sleeve 503 is provided with a first connecting end 504, the first connecting end 504 is connected to the first connecting member 17, the first connecting member 17 is sleeved in the first connecting rod 11, and the first connecting member 17 is threadedly connected to the first connecting rod 11; the second intermediate sleeve is provided with a second connecting end 603, the second connecting end 603 is connected to the second connecting member 14, the second connecting member 14 is sleeved in the second connecting rod 12, the second connecting member 14 is threadedly connected to the second connecting rod 12, and the first connecting rod 11 and the second connecting rod 12 are correspondingly arranged. Specifically, the first connecting member 17 and the second connecting member 14 are nuts with opposite rotation directions, the first connecting rod 11 and the second connecting rod 12 are screws with opposite rotation directions, the central axis of the first connecting rod 11 and the central axis of the second connecting rod 12 coincide, and the first connecting rod 11 and the second connecting rod 12 are the same except for the rotation direction, so as to realize the synchronous and same-speed rotation of the first connecting rod 11 and the second connecting rod 12. In order to realize the fixation of the first connecting rod 11 and the second connecting rod 12, as Figure 3 , Figure 5 and Figure 6 As shown, it also includes a support seat 15, and a connecting sleeve 18 is rotatably provided in the inner hole of the support seat 15. One end of the first connecting rod 11 is rotatably connected to the box body 1, and the other end of the first connecting rod 11 is arranged in the connecting sleeve 18; one end of the second connecting rod 12 is rotatably connected to the box body 1, and the other end of the second connecting rod 12 is arranged in the connecting sleeve 18. The first connecting rod 11 and the second connecting rod 12 are rotatably connected to the connecting sleeve 18 respectively. It should be noted that the connecting sleeve 18 is a screw connecting sleeve 18. When one connecting rod rotates, the connecting sleeve 18 will drive the other connecting rod to rotate. It should be noted that the end of the first connecting rod 11 away from the connecting sleeve 18 extends out of the box body 1, and the end of the second connecting rod 12 away from the connecting sleeve 18 extends out of the box body 1.

[0046] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a driving shaft 13, which is meshed with the first roller shaft 3, and the number of teeth of the cylindrical gear of the driving shaft 13 is equal to the number of teeth of the cylindrical gear of the first roller shaft 3.

[0047] A rolling system includes the above-mentioned roll gap adjustment box and a gearbox, wherein the gearbox is connected to the rotating end of the driving shaft 13.

[0048] A method for using a roll gap adjustment box comprises the following two steps:

[0049] (1) When the roller ring channel 701 does not need to be adjusted, the gearbox drives the driving shaft 13 to rotate, the driving shaft 13 drives the first roller shaft 3, and the first roller shaft 3 drives the second roller shaft 4 to rotate at the same speed, and the roller ring channel 701 between the first roller ring 7 and the second roller ring 8 remains stationary, so that the rolled material passes through the roller ring channel 701;

[0050] (2) When the roller ring channel 701 needs to be adjusted, the driving shaft 13 remains stationary, the first roller shaft 3 and the second roller shaft 4 remain stationary, and the first connecting rod 11 is rotated by rotating the end portion of the first connecting rod 11 extending outside the box body 1 with the help of a wrench or other tool, and the first connecting rod 11 drives the connecting sleeve 18, and the connecting sleeve 18 drives the second connecting rod 12 to rotate, and the first connecting member 17 moves along the axial direction of the first connecting rod 11, and the first connecting member 17 drives the first intermediate sleeve 503 to rotate, so as to drive the outer peripheral surface of the first eccentric sleeve 5 to rotate, so as to move the central axis of the first roller shaft 3, and the second connecting member 14 moves along the axial direction of the second connecting rod 12, and the second connecting member 14 drives the second intermediate sleeve to rotate, so as to drive the outer peripheral surface of the second eccentric sleeve 6 The second connecting rod 12 is rotated to move the central axis of the second rolling roller shaft 4; or, the second connecting rod 12 is rotated by rotating the end of the second connecting rod 12 extending outside the box body 1 with the help of a wrench or other tools, and the second connecting rod 12 drives the connecting sleeve 18, and the connecting sleeve 18 drives the first connecting rod 11 to rotate, and the first connecting member 17 moves along the axial direction of the first connecting rod 11, and the first connecting member 17 drives the first intermediate sleeve 503 to rotate, so as to drive the outer peripheral surface of the first eccentric sleeve 5 to rotate, so as to move the central axis of the first rolling roller shaft 3, and the second connecting member 14 moves along the axial direction of the second connecting rod 12, and the second connecting member 14 drives the second intermediate sleeve to rotate, so as to drive the outer peripheral surface of the second eccentric sleeve 6 to rotate, so as to move the central axis of the second rolling roller shaft 4. It should be noted that, Figure 5 , Figure 6 As shown, the offset distance between the central axes of the first roller shaft 3 and the second roller shaft 4 in the present application is very small, and the two are deflected at the same speed.

[0051] The roll gap adjustment box provided by the present invention has the following advantages: (1) during the whole process, the central axis of the roll ring channel 701 will remain stationary, so that the position of the rolling center line will not change; (2) the threads of the first connecting rod 11 and the second connecting rod 12 have the same pitch and opposite rotation directions, and the first connecting rod 11 and the second connecting rod 12 can rotate synchronously through the connecting sleeve 18, thereby achieving the symmetrical rotation angles of the first eccentric sleeve 5 and the second eccentric sleeve 6 being the same and opposite, thereby achieving the function of symmetrically adjusting the roll gap of the roll ring channel 701.

[0052] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A roll gap adjustment box, characterized in that: include: A box body (1), wherein a receiving space is provided in the box body (1); A first rolling roller shaft (3) and a second rolling roller shaft (4), the first rolling roller shaft (3) and the second rolling roller shaft (4) are meshedly arranged, the first rolling roller shaft (3) and the second rolling roller shaft (4) partially pass through the box body (1) and extend into the accommodating space, the end of the first rolling roller shaft (3) extending out of the box body (1) is sleeved on the first rolling ring (7), and the end of the second rolling roller shaft (4) extending out of the box body (1) is sleeved on the second rolling ring (8), a rolling ring channel (701) is formed between the first rolling ring (7) and the second rolling ring (8), and the rolling ring channel (701) is suitable for passing the rolled material; A first eccentric sleeve (5) and a second eccentric sleeve (6), wherein the first eccentric sleeve (5) is arranged between the first roller shaft (3) and the housing (1), and the second eccentric sleeve (6) is arranged between the second roller shaft (4) and the housing (1), and the first eccentric sleeve (5) and the second eccentric sleeve (6) are rotated to change the center distance between the first roller shaft (3) and the second roller shaft (4), thereby driving the roller ring channel (701) to change.

2. The roll gap adjustment box according to claim 1, characterized in that: The central axis of the inner circumference of the first eccentric sleeve (5) coincides with the central axis of the first roller shaft (3), while the central axis of the inner circumference of the first eccentric sleeve (5) does not coincide with the central axis of the outer circumference; the central axis of the inner circumference of the second eccentric sleeve (6) coincides with the central axis of the second roller shaft (4), while the central axis of the inner circumference of the second eccentric sleeve (6) does not coincide with the central axis of the outer circumference.

3. The roller gap adjustment box according to claim 2, characterized in that: The first eccentric sleeve (5) is provided with a first large end (501) and a first small end (502); the outer circumferential surface of the first large end (501) is fitted with the inner hole of the first side plate (101) of the box body (1); an oil film bearing is provided between the inner circumferential surface of the first large end (501) and the outer circumferential surface of the first shoulder of the first roller shaft (3); the outer circumferential surface of the first small end (502) is fitted with the inner hole of the second side plate (102) of the box body (1); an oil film bearing is provided between the inner circumferential surface of the first small end (502) and the outer circumferential surface of the second shoulder of the first roller shaft (3); The second eccentric sleeve (6) is provided with a second large end (601) and a second small end (602); the outer circumferential surface of the second large end (601) is fitted with the inner hole of the first side plate (101) of the housing (1); an oil film bearing is provided between the inner circumferential surface of the second large end (601) and the outer circumferential surface of the third shoulder of the second roller shaft (4); the outer circumferential surface of the second small end (602) is fitted with the inner hole of the second side plate (102) of the housing (1); and an oil film bearing is provided between the inner circumferential surface of the second small end (602) and the outer circumferential surface of the fourth shoulder of the second roller shaft (4).

4. The roller gap adjustment box according to claim 3, characterized in that: The first eccentric sleeve (5) further comprises a first intermediate sleeve (503), the first intermediate sleeve (503) being fixedly connected to the first large end (501) and the first small end (502), respectively, and the cross section of the first intermediate sleeve (503) is arc-shaped; the second eccentric sleeve (6) further comprises a second intermediate sleeve, the second intermediate sleeve being fixedly connected to the second large end (601) and the second small end (602), respectively, and the cross section of the second intermediate sleeve is arc-shaped.

5. The roller gap adjustment box according to claim 4, characterized in that: The first intermediate sleeve (503) is provided with a first connecting end (504), the first connecting end (504) is connected to a first connecting piece (17), the first connecting piece (17) is sleeved inside the first connecting rod (11), and the first connecting piece (17) is threadedly connected to the first connecting rod (11); the second intermediate sleeve is provided with a second connecting end (603), the second connecting end (603) is connected to a second connecting piece (14), the second connecting piece (14) is sleeved inside the second connecting rod (12), and the second connecting piece (14) is threadedly connected to the second connecting rod (12), an end of one end of the first connecting rod (11) and an end of one end of the second connecting rod (12) are correspondingly arranged, the rotation direction of the external thread of the first connecting rod (11) is opposite to the rotation direction of the external thread of the second connecting rod (12), and the first connecting rod (11) and the second connecting rod (12) rotate synchronously and at the same speed.

6. The roller gap adjustment box according to claim 5, characterized in that: It also includes a support seat (15), a connecting sleeve (18) is rotatably provided in the inner hole of the support seat (15), one end of the first connecting rod (11) is rotatably connected to the box body (1), the other end of the first connecting rod (11) is arranged in the connecting sleeve (18), one end of the second connecting rod (12) is rotatably connected to the box body (1), the other end of the second connecting rod (12) is arranged in the connecting sleeve (18), the first connecting rod (11) and the second connecting rod (12) are respectively rotatably connected to the connecting sleeve (18), and the central axis of the first connecting rod (11) coincides with the central axis of the second connecting rod (12).

7. The roller gap adjustment box according to claim 1, characterized in that: It also comprises a driving shaft (13), wherein the driving shaft (13) is partially arranged in the accommodating space, and the driving shaft (13) is meshed with the first roller shaft (3).

8. The roller gap adjustment box according to claim 7, characterized in that: The number of teeth of the cylindrical gear of the driving shaft (13), the number of teeth of the cylindrical gear of the first rolling roller shaft (3), and the number of teeth of the cylindrical gear of the second rolling roller shaft (4) are all equal.

9. A rolling system, characterized in that: It comprises the roller gap adjustment box as described in any one of claims 1 to 8.

10. A method of using a roll gap adjustment box, used for using the roll gap adjustment box according to claim 1, characterized in that: The first eccentric sleeve (5) and the second eccentric sleeve (6) are rotated to change the center distance between the first roller shaft (3) and the second roller shaft (4); the first eccentric sleeve (5) and the second eccentric sleeve (6) have the same rotation speed and opposite rotation direction; the first roller shaft (3) drives the first roller ring (7) to rotate, and the second roller shaft (4) drives the second roller ring (8) to rotate; the first roller shaft (3) and the second roller shaft (4) have the same rotation speed to drive the roller ring channel (701) to change.

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