A fast-changing horizontal two-roller mill

Abstract

The present invention relates to a fast-roll-changing horizontal two-roll rolling mill, comprising a frame and a rolling unit, wherein the rolling unit comprises a left rolling roller support assembly, a rolling roller assembly and a right rolling roller support assembly which are sequentially arranged in a horizontal direction, wherein the left rolling roller support assembly comprises a left rolling roller seat, a left bearing and a left shaft sleeve which are sequentially arranged from the outside to the inside, the left shaft sleeve is hollow inside, and a plug-in block is extended from the left shaft sleeve toward one end of the rolling roller assembly, and the left rolling roller seat is slidably embedded in a mounting groove; the right rolling roller support assembly comprises a right rolling roller seat, a right bearing and a right shaft sleeve which are sequentially arranged from the outside to the inside, the right shaft sleeve is hollow inside, and the right rolling roller seat is slidably embedded in the mounting groove, and the rolling roller assembly comprises two ends of the rolling roller assembly which are coaxially slidably plugged into the left shaft sleeve and the right shaft sleeve, and the rolling roller assembly is provided with a plug-in groove which cooperates with the plug-in block, so that the rolling roller assembly can be quickly disassembled and replaced.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mills, in particular to a fast-roller-changing horizontal two-roller rolling mill. Background Art

[0002] A rolling mill is a device that plastically deforms metal.

[0003] The existing patent with announcement number CN205587427U discloses a roll mechanism of a vertical rolling mill, including a machine base and a roll support arranged on the frame, wherein a motor is arranged at the upper end of the roll support, and a bevel gear box joint, a universal joint, a universal joint intermediate shaft, a spline joint, a spline sleeve and a roll assembly are arranged in sequence from top to bottom at the output end of the motor.

[0004] The above-mentioned prior art solutions have the following defects:

[0005] Combined with the disclosed drawings, it is obvious that the roller system assembly can be subdivided into a roller assembly used for roller processing and bearing seats arranged at both ends of the roller assembly. When the roller assembly needs to be disassembled and replaced, there is a large friction between the end of the roller assembly and the bearing. After multiple disassembly and assembly, problems such as bearing deformation and damage are caused. Summary of the invention

[0006] In view of the shortcomings of the prior art, one of the objects of the present invention is to provide a horizontal two-roll mill with quick roll change, in which the two ends of the roll assembly are plug-fitted with the left and right sleeves to achieve the purpose of rapid disassembly and replacement of the roll assembly.

[0007] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0008] A fast-roll-changing horizontal two-roll mill comprising

[0009] The rack includes a base, a pair of symmetrical mounting plates and a top cover arranged in sequence from bottom to top, wherein the mounting plates are provided with mounting grooves penetrating in the horizontal direction, and the mounting grooves are extended in the vertical direction;

[0010] Rolling unit: a pair of the rolling units are arranged on the frame and spaced apart in the vertical direction, and the rolling unit comprises a left roller support assembly, a roller assembly and a right roller support assembly which are arranged in sequence in the horizontal direction;

[0011] The left roller support assembly includes a left roller seat, a left bearing and a left shaft sleeve which are arranged in sequence from the outside to the inside. The left shaft sleeve is hollow inside, and the left roller seat is slidably embedded in the installation groove;

[0012] The right roller support assembly includes a right roller seat, a right bearing and a right shaft sleeve which are arranged in sequence from the outside to the inside. The right shaft sleeve is hollow inside, and the right roller seat is slidably embedded in the installation groove;

[0013] Roller assembly: The two ends of the roller assembly are coaxially slidably inserted into the left shaft sleeve and the right shaft sleeve, and the roller assembly and the left shaft sleeve are connected by inserting blocks and inserting grooves, and the inserting direction between the inserting blocks and the inserting grooves is parallel to the axis of the roller assembly;

[0014] Roll gap adjustment device: includes connecting seats respectively slidably embedded in the mounting grooves along the vertical direction, the connecting seats are detachably connected to the left roll seat assembly and the right roll seat assembly located in the upper rolling unit, and the upper end of the frame is provided with a power assembly for driving the two connecting seats to rise and fall simultaneously or driving a single connecting seat to rise and fall separately.

[0015] By adopting the above technical scheme, when rolling begins, the raw material is located between the roll assemblies in the rolling unit, and the left roll seat and the right roll seat in the upper rolling unit are moved in the vertical direction, thereby changing the roll gap between the roll assemblies to achieve the purpose of rolling; and when the roll assembly needs to be replaced, the pressure plate is first removed, and then the left roll seat or the right roll seat is taken out from the mounting groove, so that one end of the roll assembly is detached from the left shaft sleeve or the right shaft sleeve, and then the roll assembly is taken out and replaced with a new roll assembly, thereby achieving the purpose of quickly replacing the roll assembly, while avoiding stress damage to the left bearing or the right bearing, thereby improving the service life and working efficiency of the two-roll mill.

[0016] In a preferred example, the present invention can be further configured as follows: the roller assembly includes a coaxial center shaft and a roller ring, a fixed ring and a sliding ring are coaxially arranged on the center shaft, the plug-in groove is opened on the fixed ring, a locking bolt is passed through the fixed ring, and the locking bolt is threadedly connected to the sliding ring, and the fixed ring and the sliding ring squeeze the roller ring.

[0017] By adopting the above technical solution, the roller ring on the central shaft can be detached, which further facilitates the targeted replacement of the roller ring for different products and reduces the cost of equipment replacement.

[0018] In a preferred example, the present invention can be further configured as follows: a pair of the left bearings are arranged in the left roller seat, and a left inner limit ring is arranged in abutment between the left bearings, left outer limit rings are coaxially fixed on both sides of the thickness direction of the left roller seat, and the left outer limit ring abuts against the left bearing; a pair of the right bearings are arranged in the right roller seat, and a right inner limit ring is arranged in abutment between the right bearings, and right outer limit rings are coaxially fixed on both sides of the thickness direction of the right roller seat, and the right outer limit ring abuts against the right bearing.

[0019] By adopting the above technical solution, the stability of the rotation axis of the left sleeve and the right sleeve is improved, thereby ensuring the stability of the roller and improving the accuracy and quality of the roller.

[0020] In a preferred example, the present invention can be further configured as follows: annular oil grooves aligned with the left inner limit ring or the right inner limit ring are coaxially opened on the inner wall of the left roller seat and the inner wall of the right roller seat respectively; connecting oil holes connected to the annular oil grooves are circumferentially spaced apart on the left inner limit ring or the right inner limit ring; and oil filling holes are provided on the left roller seat and the right roller seat, and the oil filling holes are connected to the annular oil grooves.

[0021] By adopting the above technical solution, lubricating oil is added from the oil filling hole, and the lubricating oil enters the left bearing or the right bearing through the annular oil groove and the connecting oil hole in turn, thereby achieving the purpose of lubricating the left bearing or the right bearing and improving the service life of the rolling unit.

[0022] In a preferred example, the present invention can be further configured as follows: a connecting oil pipe is arranged between the left roller seat and the right roller seat in the same rolling unit, the connecting oil pipe connects the two annular oil grooves, and a hose connecting the annular right groove is arranged between the two oil filling holes on the right roller seat, the two oil filling holes on the left roller seat are respectively used to connect the oil inlet pipe or the oil outlet pipe, and a sealing ring for sealing the oil is coaxially arranged on the inner side of the left outer limit ring and the right outer limit ring.

[0023] By adopting the above technical solution, lubricating oil is continuously injected from the oil inlet pipe, and the lubricating oil passes through the inside of all the left roller seats and the right roller seats through the connecting oil pipes and the hoses, so as to achieve the purpose of lubricating all the left bearings and the right bearings at the same time. The lubricating oil is finally discharged through the oil outlet pipe, and the flowing lubricating oil is formed inside the rolling unit without affecting the normal operation of the rolling rollers, thereby improving the lubrication effect of the rolling unit and making the rolling unit have a longer service life.

[0024] In a preferred example, the present invention can be further configured as follows: hollow grooves are provided at the middle of the left roller seat and the right roller seat toward the inner walls of the mounting groove on both sides, and a reference surface that slides with the inner wall of the mounting groove is formed on the left roller seat and the right roller seat located outside the hollow groove; an oiling hole is provided at the upper end of the left roller seat and the right roller seat located in the upper rolling unit, and oil passages connecting the oiling hole and the hollow groove are provided in the left roller seat and the right roller seat.

[0025] By adopting the above technical scheme, the size of the matching surface between the left roller seat, the right roller seat and the inner wall of the installation groove is reduced, thereby improving the processing efficiency of the left roller seat and the right roller seat, reducing the cost of the rolling unit, and improving the stability of the movement of the rolling unit; and lubricating oil can be injected from the refueling hole, and the lubricating oil enters the hollow groove through the oil channel to form lubrication between the left roller seat, the right roller seat and the inner wall of the installation groove, which is convenient for lifting and disassembling the rolling unit.

[0026] In a preferred example, the present invention can be further configured as: a limiting assembly: including pressure plates that are detachably arranged on both sides of the mounting plate in the thickness direction and on both sides of the mounting groove in the width direction, the pressure plates are extended along the vertical direction, and the pressure plates are slidably abutted against the left roller seat assembly or the right roller seat assembly.

[0027] By adopting the above technical solution, the pressure plate in the limiting assembly effectively blocks the horizontal movement of the rolling unit, so that the rolling unit can be stably raised and lowered, and the stability during rolling is improved.

[0028] In a preferred example, the present invention can be further configured as follows:

[0029] When the two groups of the power component assemblies drive the two connecting seats to rise and fall respectively, the power assembly includes:

[0030] Lead screw: a lead screw is rotatably arranged in the frame and above the rolling unit, the axis of the lead screw is arranged in the vertical direction, and the connecting seat is threadedly sleeved on the lead screw;

[0031] Worm gear: coaxially fixed to the upper end of the screw;

[0032] Worm: rotatably arranged on the top cover, and meshingly arranged between the worm and the worm wheel;

[0033] Driving motor: fixed on the top cover and used to control the rotation of the worm.

[0034] By adopting the above technical solution, the driving motor controls the rotation of the worm, and then controls the worm wheel to drive the rotation of the lead screw, so as to achieve the purpose of driving the connecting seat to lift the rolling unit to adjust the roll gap, and the left roll support assembly or the right roll support assembly can be lifted and lowered separately, so as to adjust the horizontality of the roll assembly and improve the roll quality.

[0035] In a preferred example, the present invention can be further configured as follows: an elastic support component is provided at the upper end of the left roller seat and the right roller seat in the rolling unit located below, and the elastic support component has a tendency to push the left roller seat and the right roller seat in the rolling unit located above to move upward.

[0036] By adopting the above technical solution, since there is a gap in the threaded fit between the lead screw and the connecting seat, the movement deviation of the connecting seat caused by the gap is reduced through the support of the elastic support component, thereby ensuring the stability of the roller gap and improving the accuracy of the roller.

[0037] In a preferred example, the present invention can be further configured as follows:

[0038] The horizontal adjustment unit includes a bearing seat and a screw actively arranged in the bearing seat, the axis of the screw is parallel to the axis of the roller assembly, and the screw thread is arranged in the mounting plate;

[0039] Horizontal adjustment motor: used to control the rotation of the screw;

[0040] Limit fixing seat: The limit fixing seat is slidably abutted against the upper end of the base.

[0041] By adopting the above technical solution, when the horizontal adjustment motor is started, the horizontal adjustment motor controls the rotation of the screw, and the screw drives the frame to move in the horizontal plane, calibrating the relative position between the roller assembly and the raw material, thereby improving the accuracy and quality of the roller.

[0042] In summary, the present invention includes at least one of the following beneficial technical effects:

[0043] 1. The two ends of the roller assembly are plugged into the left and right sleeves to achieve the purpose of quick disassembly and replacement of the roller assembly;

[0044] 2. The roller ring on the central axis is detachable, which further facilitates the targeted replacement of roller rings for different products and reduces the cost of equipment replacement;

[0045] 3. A complete oil circuit is formed in the rolling unit to achieve stable lubrication of all bearings and extend the service life of the rolling mill;

[0046] 4. Both ends of the rolling unit axis direction can be adjusted separately or simultaneously, which is convenient for adjusting the roll gap and controlling the horizontality of the roll assembly, thus improving the quality and precision of the rolls;

[0047] 5. The elastic support assembly effectively removes the gap between the screw and the connecting seat, ensures the stability of the roll gap size, and improves the quality and precision of the roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the general assembly of a horizontal two-roll mill with quick roll change;

[0049] Figure 2 It is a schematic diagram for reflecting the connection structure between two rolling units;

[0050] Figure 3 It is an exploded schematic diagram for showing the structure of the left roller support assembly;

[0051] Figure 4 It is an exploded schematic diagram used to illustrate the structure of the roll assembly;

[0052] Figure 5 It is an exploded schematic diagram for showing the structure of the right roll support assembly;

[0053] Figure 6 It is a half-section view used to reflect the internal structure of a single roll unit;

[0054] Figure 7 It is a half-section schematic diagram used to illustrate the structure of the roll gap adjustment device.

[0055] In the figure, A1, frame; A2, base; A3, mounting plate; A31, mounting slot; A4, top cover;

[0056] B1, rolling unit; B2, left roller support assembly; B21, left roller seat; B22, left bearing; B23, left bushing; B24, plug-in block; B25, left inner limit ring; B26, left outer limit ring; B3, right roller support assembly; B31, right roller seat; B32, right bearing; B33, right bushing; B34, right inner limit ring; B35, right outer limit ring; B4, roller Components; B41, center shaft; B42, plug-in slot; B43, fixed ring; B44, sliding ring; B45, roller ring; B51, pressure plate; B6, annular oil groove; B7, connecting oil hole; B8, oil filling hole; B9, connecting oil pipe; B10, hose; B11, sealing ring; B12, hollow groove; B13, oil filling hole; B14, oil channel; B15, reference surface; B16, handle;

[0057] C1, roller gap adjustment device; C2, connecting seat; C3, lead screw; C4, worm gear; C5, driving motor; C6, worm; C7, elastic support assembly;

[0058] D1, horizontal adjustment unit; D2, bearing seat; D3, screw rod; D5, limit fixing seat. DETAILED DESCRIPTION

[0059] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0060] like Figure 1 As shown, a fast roll-changing horizontal two-roller rolling mill comprises a frame A1, the frame A1 comprises a base A2, a pair of symmetrical mounting plates A3 and a top cover A4 arranged in sequence from bottom to top, fixed columns are connected at the four corners between the mounting plates A3, and mounting grooves A31 are penetrated through the mounting plates A3 along the thickness direction thereof, the mounting grooves A31 are extended in the vertical direction, and a pair of rolling units B1 are arranged between the mounting plates A3, the two rolling units B1 are spaced apart in the vertical direction, the rolling unit B1 comprises a left rolling support assembly B2, a rolling assembly B4 and a right rolling support assembly B3 arranged in sequence in the horizontal direction, wherein the left rolling support assembly B2 and the right rolling support assembly B3 are respectively embedded in the mounting grooves A31, the rolling unit B1 located at the bottom is fixed between the mounting plates A3, and the rolling unit B1 located at the top is slidably arranged in the vertical direction;

[0061] When rolling begins, the raw material is located between the roll assemblies B4 in the rolling unit B1, and the roll gap between the roll assemblies B4 is changed by moving the left roll stand B21 and the right roll stand B31 located in the upper rolling unit B1 in the vertical direction to achieve the purpose of rolling.

[0062] like Figure 2-6 As shown, the left roller support assembly B2 includes a left roller seat B21, a left bearing B22 and a left sleeve B23 which are arranged in sequence from the outside to the inside, the outer portion of the left sleeve B23 is interference fit with the left bearing B22, the inner portion of the left sleeve B23 is coaxially hollow, and a plug-in block B24 extends from the radial end of the left sleeve B23 toward the roller assembly B4; the right roller support assembly B3 includes a right roller seat B31, a right bearing B32 and a right sleeve B33 which are arranged in sequence from the outside to the inside, the outer portion of the right sleeve B33 is interference fit with the right bearing B32, the inner portion of the right sleeve B33 is coaxially hollow; the roller assembly B4 includes a center axis B41, a fixed ring B43 and a sliding ring B44 are coaxially arranged on the central shaft B41, the fixed ring B43 is integrally arranged with the central shaft B41, and a plug-in groove B42 is opened on the side of the fixed ring B43 facing the left roller support assembly B2, the plug-in block B24 on the left shaft sleeve B23 is embedded and matched with the plug-in groove B42, the sliding ring B44 is movably sleeved on the central shaft B41, a locking bolt is passed through the fixed ring B43, and the locking bolt is threadedly connected with the sliding ring B44, and a roller ring B45 is coaxially sleeved on the central shaft B41, and the roller ring B45 is squeezed and fixed by the fixed ring B43 and the sliding ring B44;

[0063] At the same time, one end of the left sleeve B23 away from the roll assembly B4 extends out of the left roll seat B21, and a flange is coaxially fixed on the end. A universal joint is installed on the flange and connected to the output end of the roll motor. When the roll motor is started, the left sleeve B23 is driven to rotate in the left roll seat B21. At the same time, the center shaft B41 rotates stably around its axis under the support of the right sleeve B33, thereby achieving the purpose of roll operation.

[0064] In addition, limit assemblies for limiting the moving direction of the rolling unit B1 are installed on both sides of the mounting plate A3 in the thickness direction. The limit assemblies include a pair of pressing plates B51 along the vertical direction. The pressing plates B51 are detachably fixed to the mounting plate A3 by screws. Two pairs of limit assemblies are installed on each side of the mounting plate A3, wherein the pressing plates B51 are partially aligned with the mounting grooves A31, so that the pressing plates B51 are in contact with the left rolling seat B21 or the right rolling seat B31, thereby limiting the moving directions of the left rolling seat B21 and the right rolling seat B31, and realizing the stable lifting and lowering of the rolling unit B1 in the vertical direction;

[0065] When the roller assembly B4 needs to be replaced, the pressing plate B51 is first removed, and then the left roller seat B21 or the right roller seat B31 is taken out from the installation groove A31, so that one end of the roller assembly B4 is separated from the left shaft sleeve B23 or the right shaft sleeve B33, and then the roller assembly B4 is taken out and replaced with a new roller assembly B4, so as to achieve the purpose of quickly replacing the roller assembly B4, and at the same time avoid the left bearing B22 or the right bearing B32 from being damaged by force, thereby improving the service life and working efficiency of the two-roller mill. A pair of handles B16 are fixed on the opposite sides of the left roller seat B21 and the right roller seat B31, and the handles B16 are located on the opposite sides of the left roller seat B21 and the right roller seat B31 in the horizontal direction, and the handles B16 are U-shaped, and the two ends of the handles B16 are fixedly connected to the left roller seat B21 and the right roller seat B31, so as to further facilitate the disassembly and assembly of the left roller seat B21 and the right roller seat B31.

[0066] like Figure 7 As shown, a roll gap adjusting device C1 for controlling the lifting and lowering of the upper rolling unit B1 is also installed at the upper end of the frame A1. The roll gap adjusting device C1 includes a connecting seat C2 embedded in the mounting groove A31. The connecting seat C2 is detachably connected to the left roll seat B21 or the right roll seat B31 in the upper rolling unit B1 by bolts. That is, when disassembling and assembling the upper rolling unit B1, after removing the pressure plate B51, the fixation between the left roll seat B21 or the right roll seat B31 and the connecting seat C2 is removed. The roll gap adjustment device C1 also includes a power assembly for controlling the lifting and lowering of the connecting seat C2. The power assembly includes a lead screw C3 rotatably installed on the upper end of the frame A1. The lower end of the lead screw C3 extends into the installation groove A31 and is threadedly connected to the connecting seat C2. The upper end of the lead screw C3 passes through the top cover A4 and is coaxially fixed with a worm gear C4. At the same time, a driving motor C5 is fixed on the top cover A4. A worm C6 is fixed at the output end of the driving motor C5. The worm C6 is meshed with the worm gear C4. The rotation of the worm C6 is controlled by the driving motor C5, and then the worm gear C4 is controlled to drive the lead screw C3 to rotate, so that the connecting seat C2 drives the rolling unit B1 to lift and lower to adjust the roll gap.

[0067] The above-mentioned roller gap adjustment device C1 may adopt a single worm C6 and a driving motor C5, wherein the worm C6 is rotatably arranged between the two worm wheels C4, and the worm C5 is simultaneously meshed with the two worm wheels C4, and the threads between the two sets of lead screws C3 and the connecting seat C2 are arranged with opposite spiral structures; when the driving motor C6 is started, the single worm C5 actively drives the two worm wheels C4 at the same time, so that the two lead screws C3 rotate at the same time, and drive the two connecting seats C3 to rise and fall synchronously, so as to realize the adjustment of the roller gap.

[0068] like Figure 2As shown, an elastic support component C7 is fixed to the upper ends of the left roller seat B21 and the right roller seat B31 in the lower rolling unit B1. In this embodiment, the elastic support component C7 adopts a nitrogen spring, and the telescopic end of the nitrogen spring abuts and supports the lower ends of the left roller seat B21 and the right roller seat B31 in the upper rolling unit B1; due to the gap between the threaded fit of the lead screw C3 and the connecting seat C2, the movement deviation of the connecting seat C2 caused by the gap is reduced through the support of the nitrogen spring, thereby ensuring the stability of the roller gap and improving the accuracy of the roller.

[0069] like Figure 2-6 As shown, a pair of left bearings B22 are arranged in the left roller seat B21, and a left inner limit ring B25 is abutted between the left bearings B22, and left outer limit rings B26 are coaxially fixed on both sides of the thickness direction of the left roller seat B21, and the left outer limit ring B26 abuts against the side opposite to the left bearings B22; similarly, a pair of right bearings B32 are arranged in the right roller seat B31, and a right inner limit ring B34 is abutted between the right bearings B32, and right outer limit rings B35 are coaxially fixed on both sides of the thickness direction of the right roller seat B31, and the right outer limit ring B35 abuts against the side opposite to the right bearings B32, thereby improving the stability of the rotation axis of the left sleeve B23 and the right sleeve B33, thereby ensuring the stability of the rollers and improving the accuracy and quality of the rollers.

[0070] An annular oil groove B6 is coaxially provided on the inner wall of the left roller seat B21 and the inner wall of the right roller seat B31. The annular oil groove B6 is aligned with the left inner limit ring B25 or the right inner limit ring B34. Connecting oil holes B7 are circumferentially spaced through the left inner limit ring B25 or the right inner limit ring B34. The connecting oil holes B7 are connected to the annular oil groove B6. At the same time, oil filling holes B8 are provided on the left roller seat B21 and the right roller seat B31. The oil filling holes B8 are connected to the annular oil groove B6. Lubricating oil is added through the oil filling holes B8, and the lubricating oil enters the left bearing B22 or the right bearing B32 through the annular oil groove B6 and the connecting oil holes B7 in turn, so as to achieve the purpose of lubricating the left bearing B22 or the right bearing B32 and improve the service life of the rolling unit B1.

[0071] In addition, a connecting oil pipe B9 is connected between the left roller seat B21 and the right roller seat B31 in the same rolling unit B1, and the connecting oil pipe connects the two annular right grooves. A hose B10 is provided between the oil filling holes B8 of the right roller seats B31 in different rolling units B1, and the hose B10 enables the annular oil grooves B6 in the two right roller seats B31 to communicate. The oil filling holes B8 of the left roller seat B21 in different rolling units B1 are connected with an oil inlet pipe and an oil outlet pipe, and a sealing ring B11 for sealing oil is coaxially provided on the inner side of the left outer limit ring B26 and the right outer limit ring B35;

[0072] Lubricating oil is continuously injected through the oil inlet pipe, and the lubricating oil passes through the inside of all the left roller seats B21 and the right roller seats B31 through the connecting oil pipe and the hose B10, so as to achieve the purpose of lubricating all the left bearings B22 and the right bearings B32 at the same time. The lubricating oil is finally discharged through the oil outlet pipe, and the flowing lubricating oil is formed inside the rolling unit B1 without affecting the normal operation of the rolling rollers, thereby improving the lubrication effect of the rolling unit B1 and making the rolling unit B1 have a longer service life.

[0073] A hollow groove B12 is opened in the middle of the left roller seat B21 and the right roller seat B31 on both sides of the inner wall of the installation groove A31, and a reference surface B15 that slides with the inner wall of the installation groove A31 is formed on the left roller seat B21 and the right roller seat B31 located outside the hollow groove B12, thereby reducing the size of the matching surface between the left roller seat B21 and the right roller seat B31 and the inner wall of the installation groove A31, thereby improving the processing efficiency of the left roller seat B21 and the right roller seat B31 and reducing the cost of the rolling unit B1.

[0074] In addition, a refueling hole B13 is opened at the upper end of the left roller seat B21 and the right roller seat B31 in the upper rolling unit B1, and an oil plug is arranged in the refueling hole B13. At the same time, an oil passage B14 is opened in the left roller seat B21 and the right roller seat B31, and the oil passage B14 connects the refueling hole B13 and the hollow groove B12; lubricating oil is injected through the refueling hole B13, and the lubricating oil enters the hollow groove B12 through the oil passage B14, forming lubrication between the left roller seat B21, the right roller seat B31 and the inner wall of the mounting groove A31, so as to facilitate the lifting and disassembly of the rolling unit B1.

[0075] like Figure 1 and 7 As shown, the base A2 of the frame A1 is slidably arranged on the ground, and a horizontal adjustment unit D1 for pushing the base A2 to move is installed on the ground, the horizontal adjustment unit D1 includes a bearing seat D2 and a screw D3 arranged in the bearing seat D2, the axis of the screw D3 is parallel to the axis of the roller assembly B4, and the screw D3 is threadedly penetrated through the lower end of the mounting plate A3, and a horizontal adjustment motor is also fixed on the ground, the output end of the horizontal adjustment motor is coaxially fixed with the screw D3, and at the same time, a limit fixing seat D5 fixed on the ground is arranged on two opposite sides of the base A2 in the horizontal direction, the limit fixing seat D5 is a strip structure with an L-shaped cross section, and the limit fixing seat D5 abuts against the upper end of the base A2 and two opposite sides thereof in the horizontal direction;

[0076] When the horizontal adjustment motor is started, the horizontal adjustment motor controls the screw D3 to rotate, and the screw D3 drives the frame A1 to move in the horizontal plane, calibrating the relative position between the roller assembly B4 and the raw material, thereby improving the accuracy and quality of the roller.

[0077] The implementation principle of this embodiment is:

[0078] When replacing the roller assembly B4, first remove the pressure plate B51 on the mounting plate A3 of the right roller support assembly B3, then fix the right roller support assembly B3 by the handle B16, and then disassemble the connecting seat C2 and the right roller seat B31, pull the right roller support assembly B3 and the roller assembly B4 out of the frame A1 in turn, and then install the new roller assembly B4 in the frame A1, and then reinstall the right roller support assembly B3 in the frame A1 to complete the quick replacement of the roller assembly B4.

[0079] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A horizontal two-roll mill with rapid roll change, characterized in that: include The frame (A1) comprises a base (A2), a pair of symmetrical mounting plates (A3) and a top cover (A4) which are arranged in sequence from bottom to top, wherein a mounting groove (A31) is arranged on the mounting plate (A3) and penetrates in the horizontal direction, and the mounting groove (A31) is extended in the vertical direction; Rolling unit (B1): a pair of the rolling units (B1) are arranged on the frame (A1) and spaced apart in the vertical direction, and the rolling unit (B1) comprises a left roller support assembly (B2), a roller assembly (B4) and a right roller support assembly (B3) which are arranged in sequence in the horizontal direction; The left rolling roller support assembly (B2) comprises a left rolling roller seat (B21), a left bearing (B22) and a left shaft sleeve (B23) which are arranged in sequence from the outside to the inside, wherein the left shaft sleeve (B23) is hollow, and the left rolling roller seat (B21) is slidably embedded in the mounting groove (A31); The right rolling roller support assembly (B3) comprises a right rolling roller seat (B31), a right bearing (B32) and a right shaft sleeve (B33) which are arranged in sequence from the outside to the inside, wherein the right shaft sleeve (B33) is hollow, and the right rolling roller seat (B31) is slidably embedded in the mounting groove (A31); Roller assembly (B4): The two ends of the roller assembly (B4) are coaxially slidably inserted into the left shaft sleeve (B23) and the right shaft sleeve (B33), and the roller assembly (B4) and the left shaft sleeve (B23) are connected by inserting a plug-in block (B24) and an inserting groove (B42), and the inserting direction between the inserting block (B24) and the inserting groove (B42) is parallel to the axis of the roller assembly (B4); The roller gap adjustment device (C1) comprises connecting seats (C2) respectively slidably embedded in the installation groove (A31) along the vertical direction, the connecting seats (C2) are respectively detachably connected to the left roller seat (B21) component and the right roller seat (B31) component located in the upper rolling unit (B1), and the upper end of the frame (A1) is provided with a single power component for driving the two connecting seats (C2) to rise and fall at the same time or two groups of power components for driving the single connecting seats (C2) to rise and fall respectively; A pair of left bearings (B22) are arranged in the left rolling roller seat (B21), and a left inner limit ring (B25) is arranged in contact with the left bearings (B22). Left outer limit rings (B26) are coaxially fixed on both sides of the left rolling roller seat (B21) in the thickness direction, and the left outer limit ring (B26) is in contact with the left bearing (B22); a pair of right bearings (B32) are arranged in the right rolling roller seat (B31), and a right inner limit ring (B34) is arranged in contact with the right bearings (B32). Right outer limit rings (B35) are coaxially fixed on both sides of the right rolling roller seat (B31) in the thickness direction, and the right outer limit ring (B35) is in contact with the right bearing (B32); The inner wall of the left roller seat (B21) and the inner wall of the right roller seat (B31) are coaxially provided with an annular oil groove (B6) aligned with the left inner limit ring (B25) or the right inner limit ring, respectively; the left inner limit ring (B25) or the right inner limit ring (B34) is provided with connecting oil holes (B7) connected with the annular oil groove (B6) at intervals in the circumferential direction; and the left roller seat (B21) and the right roller seat (B31) are provided with oil injection holes (B8), and the oil injection holes (B8) are connected with the annular oil groove (B6); The left roller seat (B21) and the right roller seat (B31) are provided with hollow grooves (B12) in the middle of the inner walls of the mounting groove (A31) on both sides, and a reference surface (B15) for slidingly matching with the inner wall of the mounting groove (A31) is formed on the left roller seat (B21) and the right roller seat (B31) located outside the hollow groove (B12); an oiling hole (B13) is provided at the upper end of the left roller seat (B21) and the right roller seat (B31) located in the upper rolling unit (B1), and an oil passage (B14) connecting the oiling hole (B13) and the hollow groove (B12) is provided in the left roller seat (B21) and the right roller seat (B31); It also includes a horizontal adjustment unit (D1), which includes a bearing seat (D2) and a screw (D3) actively arranged in the bearing seat (D2), wherein the axis of the screw (D3) is parallel to the axis of the roller assembly (B4), and the screw (D3) is threadedly arranged in the mounting plate (A3); Horizontal adjustment motor: used to control the rotation of the screw (D3); Limit fixing seat (D5): The limit fixing seat (D5) is slidably abutted against the upper end of the base (A2).

2. A fast roll-changing horizontal two-roll mill according to claim 1, characterized in that: The roller assembly (B4) includes a coaxial central shaft (B41) and a roller ring (B45); a fixed ring (B43) and a sliding ring (B44) are coaxially arranged on the central shaft (B41); the fixed ring (B43) is provided with the plug-in groove (B42); a locking bolt is passed through the fixed ring (B43), and the locking bolt is threadedly connected to the sliding ring (B44); the fixed ring (B43) and the sliding ring (B44) squeeze the roller ring (B45).

3. A fast roll-changing horizontal two-roll mill according to claim 2, characterized in that: A connecting oil pipe (B9) is provided between the left rolling seat (B21) and the right rolling seat (B31) in the same rolling unit (B1), the connecting oil pipe (B9) is connected to two annular oil grooves (B6), and a hose (B10) connected to the annular right groove is provided between the two oil filling holes (B8) on the right rolling seat (B31), the two oil filling holes (B8) on the left rolling seat (B21) are respectively used to connect the oil inlet pipe or the oil outlet pipe, and a sealing ring (B11) for sealing oil is coaxially provided on the inner side of the left outer limiting ring (B26) and the right outer limiting ring (B35).

4. A fast roll-changing horizontal two-roll mill according to claim 1, characterized in that: Also includes a limiter assembly; The limiting assembly comprises a pressure plate (B51) which is detachably arranged on both sides of the mounting plate (A3) in the thickness direction and on both sides of the mounting groove (A31) in the width direction, wherein the pressure plate (B51) is extended in the vertical direction and the pressure plate (B51) is in sliding contact with the left rolling roller seat (B21) assembly or the right rolling roller seat (B31) assembly.

5. A fast roll-changing horizontal two-roll mill according to claim 1, characterized in that: When the power assembly drives the connection seat (C2) respectively, the power assembly comprises: Lead screw (C3): a lead screw (C3) is rotatably arranged in the frame (A1) and above the rolling unit (B1), the axis of the lead screw (C3) is arranged in the vertical direction, and the connecting seat (C2) is threadedly sleeved on the lead screw (C3); a worm gear (C4): coaxially fixed to the upper end of the lead screw (C3); A worm (C6) is rotatably arranged on the top cover (A4), and the worm (C6) is meshed with the worm wheel (C4); a driving motor (C5) is fixed on the top cover (A4) and is used to control the rotation of the worm (C6).

6. A fast roll-changing horizontal two-roll mill according to claim 1, characterized in that: An elastic support component (C7) is arranged at the upper ends of the left rolling seat (B21) and the right rolling seat (B31) in the rolling unit (B1) located at the bottom, and the elastic support component (C7) has a tendency to push the left rolling seat (B21) and the right rolling seat (B31) in the rolling unit (B1) located at the top to move upward.

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