Universal mill rolling line elevation adjusting device and adjusting method thereof

Abstract

The application provides a universal rolling mill rolling line elevation adjusting device and an adjusting method thereof. The elevation adjusting device is located between a horizontal roller assembly and a rack assembly of the universal rolling mill, and comprises two backing plates III, a lower adjusting block I, a lower adjusting block II, two upper adjusting blocks, two pin shafts, a connecting rod assembly, a support and an adjusting rod assembly. The left and right ends of the connecting rod assembly are connected with the lower adjusting block II and the lower adjusting block I respectively, so that the lower adjusting block I and the lower adjusting block II rotate synchronously by a certain angle during the elevation adjustment. One end of the support is fixed on the rack assembly, and the other end is connected with the adjusting rod assembly. The adjusting rod assembly comprises an adjusting rod, a flange sleeve I, a flange sleeve II, a pin shaft assembly II, a joint bearing and a nut III. The application can realize the same direction adjustment of the horizontal upper roller and the horizontal lower roller, and further adjust the elevation of the horizontal rolling line, so that the horizontal rolling line and the center line of the stand roll pass are at the same height, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal rolling, in particular, especially relates to a universal mill rolling line elevation adjusting device and an adjusting method thereof. BACKGROUND

[0002] In the production of steel rails, a short stress line universal mill (hereinafter referred to as a universal mill) is used for rolling. The roll system of the universal mill is composed of a pair of horizontal rollers and a pair of vertical rollers. The horizontal upper roller 6' and the horizontal lower roller 7' roll the waist of the steel rail. The vertical roller on one side has a pass, which is used to roll the head of the steel rail and is called the head roller 4'. The vertical roller on the other side is a flat roller, which is used to roll the bottom of the steel rail and is called the bottom roller 5'. As shown in the figure, when the universal mill rolls the steel rail, the center line of the pass of the head roller 4' should be at the same height as the center line of the roll gap of the horizontal upper roller 6' and the horizontal lower roller 7', i.e. the horizontal rolling line. Figure 1

[0003] However, in actual use of the equipment, the following problems often exist:

[0004] 1. After replacing the new rack, the horizontal rolling line will deviate from the center line of the pass of the head roller 4' due to factors such as the assembly gap of the horizontal rollers, the assembly gap of the vertical rollers, and the wear of the wear plates. As shown in the figure, the deviation is S. If the deviation S is not eliminated, it will cause the head of the rolled piece to exceed the pass of the head roller 4', making the profile of the head of the steel rail asymmetric, affecting the product quality, and even causing scrap steel in severe cases. Figure 2 2. As shown in the figures, the roll gap adjusting device of the prior art can only adjust the horizontal upper roller 6' and the horizontal lower roller 7' away from or towards each other (the direction shown by the arrows in the figure). After adjustment, only the opening size of the horizontal rollers can be changed, and the elevation of the horizontal rolling line cannot be changed, so the deviation S cannot be eliminated.

[0005] Figure 3 Figure 4 The present application provides a universal mill rolling line elevation adjusting device and an adjusting method thereof to solve the above technical problems, which can realize the same direction movement of the horizontal upper roller and the horizontal lower roller, thereby realizing the elevation adjustment of the horizontal rolling line, eliminating the deviation S, ensuring that the horizontal rolling line is at the same height as the center line of the pass of the head roller, reducing the scrap rate, and improving the product quality.

[0006] According to the above technical problems, a universal mill rolling line elevation adjusting device and an adjusting method thereof are provided, which can realize the same direction movement of the horizontal upper roller and the horizontal lower roller, thereby realizing the elevation adjustment of the horizontal rolling line, eliminating the deviation S, ensuring that the horizontal rolling line is at the same height as the center line of the pass of the head roller, reducing the scrap rate, and improving the product quality.

[0007] The technical means adopted by the present application are as follows:

[0008] A universal mill rolling line elevation adjusting device, the elevation adjusting device is located between the horizontal roller assembly and the rack assembly of the universal mill, wherein the horizontal roller assembly falls on the elevation adjusting device as a whole, and the elevation adjusting device falls on the lower bottom surface of the rack assembly window.

[0009] ​​​​The elevation adjustment device comprises two pad plates III, a lower adjustment block I, a lower adjustment block II, two upper adjustment blocks, two pin shafts, a connecting rod assembly, a support and an adjustment rod assembly. The two pad plates III are located on the rack assembly. The lower adjustment block I and the lower adjustment block II are located above the two pad plates III respectively. The two upper adjustment blocks are located above the lower adjustment block I and the lower adjustment block II respectively. The contact surfaces between the upper adjustment blocks and the lower adjustment block I and the lower adjustment block II are all helical surfaces. The two pull rods of the horizontal roller assembly fall on the two upper adjustment blocks respectively. When the roller gap is adjusted, the pull rods rotate on the upper adjustment blocks. One side pin shaft passes through the upper adjustment block, the lower adjustment block I and the pad plate III on the one side from top to bottom and is fixed on the rack assembly. The other side pin shaft passes through the upper adjustment block, the lower adjustment block II and the pad plate III on the other side from top to bottom and is fixed on the rack assembly.

[0010] The left and right ends of the connecting rod assembly are connected with the lower adjustment block II and the lower adjustment block I respectively, so as to realize the synchronous rotation of the lower adjustment block I and the lower adjustment block II by a certain angle during the elevation adjustment. One end of the support is fixed on the rack assembly. The other end is connected with the adjustment rod assembly and is used for supporting the adjustment rod assembly. The connecting rod assembly passes through the middle of the support.

[0011] The adjustment rod assembly comprises an adjustment rod, a flange sleeve I, a flange sleeve II, a pin shaft assembly II, a joint bearing and a nut III. The rod end of the adjustment rod is a square end head. The adjustment rod is rotated by clamping the square end head with a wrench. The rod head of the adjustment rod is inserted into the flange sleeve I and is fixed by a screw assembly. The flange sleeve I and the flange sleeve II are connected by bolts. The joint bearing is installed on the flange sleeve II by internal and external threads. The joint bearing is inserted into the hole III of the lower adjustment block II. The pin shaft assembly II passes through the hole III, so that the adjustment rod assembly and the lower adjustment block II are connected together. The rotation of the joint bearing can adjust the distance H2 between the pin shaft assembly II and the adjustment block. After the adjustment is completed, the nut III is tightened to prevent loosening.

[0012] Further, the upper surfaces of the lower adjustment block I and the lower adjustment block II and the lower surface of the upper adjustment block are respectively processed with a helical surface I, a helical surface II and a helical surface III. By the rotation of the lower adjustment block I and the lower adjustment block II, the relative positions of the lower adjustment block I and the lower adjustment block II and the upper adjustment block are changed. The relative thickness between the lower adjustment block I and the upper adjustment block and between the lower adjustment block II and the upper adjustment block is changed. The rolling line elevation adjustment is realized.

[0013] Further, the two pad plates III and the lower adjustment block I and the lower adjustment block II are respectively provided with a pad plate II. The positioning pin I passes through the pad plate III and the pad plate II and is inserted into the rack assembly. The material of the pad plate II is self-lubricating material. The pad plate II plays a lubricating role when the lower adjustment block I and the lower adjustment block II rotate.

[0014] The upper adjusting block is provided with a pad plate I, the pad plate I is made of self-lubricating material, the pull rod falls on the pad plate I, and the pull rod rotates on the pad plate I when the roll gap is adjusted; the pad plate I is positioned with the upper adjusting block through a positioning pin III, so that the pull rod does not rotate with the pad plate I; one side pin shaft passes through a side pad plate I, a side upper adjusting block, a lower adjusting block I and a side pad plate III from top to bottom and is fixed on the rack assembly, and the other side pin shaft passes through the other side pad plate I, the other side upper adjusting block, the lower adjusting block II and the other side pad plate III from top to bottom and is fixed on the rack assembly; a bushing is further arranged between the pin shafts and the parts through which the pin shafts pass, and the bushing is made of self-lubricating material and plays a lubricating role on the rotation of the lower adjusting block I and the lower adjusting block II and the lifting of the upper adjusting block.

[0015] The pad plate III is fixed with a positioning pin II, the hole IV of the upper adjusting block passes through the positioning pin II, and the positioning pin II is used for positioning the upper adjusting block, so that the upper adjusting block does not rotate but only moves up and down during the height adjustment, and the diameter of the hole IV is greater than the diameter of the positioning pin II.

[0016] Further, the connecting rod assembly comprises a connecting rod, a nut I, a nut II, a connecting block I, a connecting block II and two pin shaft assemblies I, the left and right ends of the connecting rod are provided with external threads with opposite rotation directions, the connecting block I and the connecting block II are internally provided with internal threads corresponding to the rotation directions of the left and right ends of the connecting rod, the connecting block I and the connecting block II are fixed on the left and right sides of the connecting rod through the internal and external thread connection, the connecting block I and the connecting block II are respectively inserted into the hole I of the lower adjusting block I and the hole II of the lower adjusting block II, the two pin shaft assemblies I pass through the hole I and the hole II respectively and fix the connecting block I and the connecting block II, the distance H1 between the two pin shaft assemblies I is adjusted by rotating the connecting rod with a wrench, so that H1 is the same as the center distance of the pull rod in the horizontal roller assembly, and the nuts I and II are tightened after the adjustment is completed.

[0017] Further, the adjusting rod assembly further comprises an adjusting block, the adjusting rod is provided with an external thread, the adjusting block is provided with an internal thread, the adjusting rod passes through the adjusting block and is in threaded connection with the adjusting block; the external thread of the adjusting rod is further provided with a dust cover assembly I and a dust cover assembly II, the dust cover assembly I and the dust cover assembly II are located on the two sides of the adjusting block; a bushing III made of self-lubricating material is arranged between the adjusting rod and the flange sleeve I, and is used for lubricating the rotation of the adjusting rod.

[0018] Further, the adjusting block is provided with an oil cup, dry oil is injected into the adjusting block through the oil cup, and the threaded connection between the adjusting rod and the adjusting block is lubricated.

[0019] Further, the other end of the support is supported by bearing seats arranged on both sides to support an adjusting rod assembly, the adjusting rod assembly is fixed on the support by cooperation between the trunnions of the adjusting block and the bearing seats on both sides, and a bushing II made of self-lubricating material is arranged at the cooperation position, and the bushing II is used for lubricating the rotation of the adjusting block during height adjustment.

[0020] Further, the lower adjusting block I is provided with a scale disc, and the upper adjusting block is provided with a pointer, during height adjustment, the scale disc rotates with the lower adjusting block I, and the pointer remains stationary, and the height of the height adjustment is recorded by reading the corresponding value of the pointer.

[0021] The application also provides an adjusting method of the universal rolling mill rolling line height adjustment device, including downward height adjustment and upward height adjustment.

[0022] The specific steps of the downward height adjustment are as follows:

[0023] S1, the square end of the adjusting rod in the adjusting rod assembly is clamped by a wrench, and the adjusting rod is rotated in the X direction, since the adjusting rod is inserted into the flange sleeve I and a bushing III is arranged between the adjusting rod and the flange sleeve I, the adjusting rod only rotates in the flange sleeve I and does not rotate the flange sleeve I.

[0024] S2, when the adjusting rod is rotated, the adjusting rod moves to the left side due to the threaded pair cooperation between the adjusting rod and the adjusting block, and then drives the lower adjusting block II to rotate counterclockwise around the pin shaft, the connecting rod assembly connects the lower adjusting block I and the lower adjusting block II, and then the lower adjusting block I rotates counterclockwise synchronously with the lower adjusting block II.

[0025] S3, when the lower adjusting block I and the lower adjusting block II rotate counterclockwise, the height of the helical surface I and the helical surface II gradually decreases, with the rotation of the lower adjusting block I and the lower adjusting block II, the upper adjusting block gradually descends under the action of the gravity of the horizontal roller assembly, and then the horizontal roller assembly also descends, and finally the center line of the roll gap of the horizontal upper roller and the horizontal lower roller, i.e. the horizontal rolling line height, is adjusted downward.

[0026] The specific steps of the upward height adjustment are as follows:

[0027] S01, the adjusting rod is rotated in the opposite direction of X by a wrench, and the adjusting rod moves to the right side, and then drives the lower adjusting block II to rotate clockwise around the pin shaft, and then the lower adjusting block I rotates clockwise synchronously with the lower adjusting block II, and the height of the helical surface I and the helical surface II gradually increases.

[0028] S02, through the interaction between the helical surface I, the helical surface II and the helical surface III, the upper adjusting block is subjected to an upward force, and then drives the horizontal roller assembly to move upward, and the horizontal rolling line height is adjusted upward.

[0029] Further, the spiral surface I, the spiral surface II and the lower spiral surface III are ground during processing, the contact rate is not less than 70%, and the appropriate lubricating grease is smeared on the spiral contact surface during assembly;

[0030] The rotation range of the lower adjusting block I and the lower adjusting block II is ±30°, the value on the dial corresponding to the pointer is ±3mm, that is, the elevation adjustment distance range is ±3mm, and the minimum unit of the dial is 0.5mm, that is, the elevation adjustment accuracy is 0.5mm; when the elevation is adjusted, the value on the dial corresponding to the pointer is observed to master the control adjustment distance.

[0031] Compared with the prior art, the present application has the following advantages:

[0032] 1. The universal mill rolling line elevation adjustment device provided by the present application can realize the same-direction adjustment of the horizontal upper roll and the horizontal lower roll, and then adjust the elevation of the horizontal rolling line, so that the horizontal rolling line and the center line of the head roll pass are at the same height, and the product quality is improved.

[0033] 2. The universal mill rolling line elevation adjustment device provided by the present application realizes the rolling line elevation adjustment through the spiral combination surface of the upper adjusting block and the lower adjusting block, and the structure is easy to process and convenient to operate.

[0034] 3. The adjustment method provided by the present application is simple, and the rolling line elevation adjustment can be realized only by rotating the adjusting rod with a wrench, and the adjustment amount can be obtained by reading the value corresponding to the pointer after adjustment.

[0035] Based on the above reasons, the present application can be widely popularized in the field of metal rolling. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0037] Figure 1 A schematic view of the positions of the horizontal roll and the vertical roll when rolling a steel rail.

[0038] Figure 2 A schematic view of the deviation of the horizontal rolling line and the center line of the head roll pass.

[0039] Figure 3 A schematic view of the roll gap adjustment device for increasing the roll gap.

[0040] Figure 4 A schematic view of the roll gap adjustment device for reducing the roll gap.

[0041] Figure 5 This is a schematic diagram of the upward adjustment of the rolling line elevation adjustment device of the present invention.

[0042] Figure 6 This is a front view of the rolling line elevation adjustment device of the present invention.

[0043] Figure 7 This is a top view of the rolling line elevation adjustment device of the present invention.

[0044] Figure 8 This is a three-dimensional view of the rolling line elevation adjustment device of the present invention.

[0045] Figure 9 for Figure 7 AA sectional view.

[0046] Figure 10 for Figure 7 BB cross-sectional view.

[0047] Figure 11 for Figure 7 CC section view.

[0048] Figure 12 for Figure 8 A magnified Y-view.

[0049] Figure 13 This is a 3D view of the lower adjustment block II.

[0050] Figure 14 This is a 3D view of the lower adjustment block I.

[0051] Figure 15 This is a 3D view of the upper adjustment block.

[0052] In the diagram: 1′, horizontal roller assembly; 2′, tie rod; 3′, frame assembly; 4′, head roller; 5′, bottom roller; 6′, upper horizontal roller; 7′, lower horizontal roller;

[0053] 1. Connecting rod assembly; 2. Adjusting rod assembly; 3. Lower adjusting block I; 4. Lower adjusting block II; 5. Bracket; 6. Bearing seat; 7. Upper adjusting block; 8. Pad I; 9. Pad II; 10. Pin; 11. Bushing; 12. Pad III; 13. Locating pin I; 14. Pointer; 15. Dial; 16. Locating pin II; 17. Locating pin III; 18. Bushing II;

[0054] 101. Connecting rod; 102. Nut I; 103. Nut II; 104. Connecting block I; 105. Connecting block II; 106. Pin assembly I;

[0055] 201, adjustment lever; 202, adjustment block; 203, oil cup; 204, flange sleeve I; 205, flange sleeve II; 206, pin shaft assembly II; 207, knuckle bearing; 208, nut III; 209, screw assembly; 210, bushing III; 211, dust cover assembly I; 212, dust cover assembly II; 2021, trunnion;

[0056] 301, helical surface I; 302, hole I;

[0057] 401, helical surface II; 402, hole II; 403, hole III;

[0058] 701, helical surface III; 702, hole IV. DETAILED DESCRIPTION

[0059] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0060] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0061] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0062] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0063] In the description of the present application, it is to be understood that the orientation terms such as "front", "back", "up", "down", "left", "right", "transverse", "vertical", "horizontal", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, which are merely for the convenience of describing and simplifying the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the parts themselves.

[0064] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", etc. can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0065] In addition, it should be noted that the use of the terms "first", "second", etc. to define parts only facilitates the distinction of the corresponding parts, and the above terms have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0066] As Figures 5-15The present application provides a universal mill rolling line elevation adjustment device, namely a short stress line universal mill horizontal rolling center line elevation adjustment device.

[0067] The present application universal mill rolling line elevation adjustment device (hereinafter referred to as the elevation adjustment device) comprises the following parts: connecting rod assembly 1, adjustment rod assembly 2, lower adjustment block I 3, lower adjustment block II 4, bracket 5, bearing seat 6, upper adjustment block 7, pad plate I 8, pad plate II 9, pin shaft 10, bushing 11, pad plate III 12, positioning pin I 13, pointer 14, dial 15, positioning pin II 16, positioning pin III 17, bushing II 18.

[0068] The present application elevation adjustment device is located between the universal mill horizontal roller assembly 1' and the rack assembly 3', and the horizontal roller assembly 1' falls on the present application elevation adjustment device as a whole, and the present application elevation adjustment device falls on the lower bottom surface of the window of the rack assembly 3'.

[0069] In the present application, two pad plates III 12 are located on the rack assembly 3', and two pad plates II 9 are respectively located on the pad plates III 12; each is inserted into the rack assembly 3' through the pad plate III 12 and the pad plate II 9 by the positioning pin I 13, and plays a positioning role for the pad plate III 12 and the pad plate II 9. The lower adjustment block I 3 and the lower adjustment block II 4 are respectively located above the two pad plates II 9, and the material of the pad plate II 9 is self-lubricating material, which can play a lubricating role when the lower adjustment block I 3 and the lower adjustment block II 4 rotate. The two upper adjustment blocks 7 are respectively located above the lower adjustment block I 3 and the lower adjustment block II 4, and the contact surfaces between the upper adjustment block 7 and the lower adjustment block I 3 and between the upper adjustment block 7 and the lower adjustment block II 4 are both helical surfaces. The two pad plates I 8 are respectively located above the two upper adjustment blocks 7, and the pad plate I 8 is a self-lubricating material. The two pull rods 2' of the horizontal roller assembly 1' fall on the two pad plates I 8 respectively, and the pull rod 2' rotates on the pad plate I 8 when the roll gap is adjusted. The pad plate I 8 and the upper adjustment block 7 are positioned by the positioning pin III 17, so as to ensure that the pull rod 2' does not rotate together with the pad plate I 8 when the pull rod 2' rotates. The pin shaft 10 passes through the pad plate I 8, the upper adjustment block 7, the lower adjustment block I 3 (the lower adjustment block II 4), the pad plate II 9 and the pad plate III 12, and is fixed on the rack assembly 3'. The pin shaft 10 and the parts mentioned above are also provided with the bushing 11. The material of the bushing 11 is self-lubricating material, which plays a lubricating role for the rotation of the lower adjustment block I 3 and the lower adjustment block II 4 and the lifting of the upper adjustment block 7. The positioning pin II 16 is fixed below the pad plate III 12, the hole IV 7 02 of the upper adjustment block 7 passes through the positioning pin II 16, and the positioning pin II 16 plays a positioning role for the upper adjustment block 7, so as to ensure that the upper adjustment block 7 does not rotate but only moves up and down during the elevation adjustment. The diameter of the hole IV 7 02 of the upper adjustment block 7 is greater than the diameter of the positioning pin II 16.

[0070] The left and right ends of the connecting rod assembly 1 are connected with the lower adjusting block II 4 and the lower adjusting block I 3 respectively, so that the lower adjusting block I 3 and the lower adjusting block II 4 can rotate by a certain angle synchronously during height adjustment.

[0071] The left and right ends of the connecting rod 101 are provided with external threads in opposite directions, the connecting block I 104 and the connecting block II 105 are provided with internal threads corresponding to the external threads of the left and right ends of the connecting rod 101, the connecting block I 104 and the connecting block II 105 are fixed on the left and right sides of the connecting rod 101 through the internal and external thread connection, the connecting block I 104 and the connecting block II 105 are inserted into the hole I 302 and the hole II 402 of the lower adjusting block I 3 and the lower adjusting block II 4 respectively, the pin shaft assembly I 106 passes through the hole I 302 and the hole II 402 and fixes the connecting block I 104 and the connecting block II 105. The distance H1 between the two pin shaft assemblies I 106 can be adjusted by rotating the connecting rod 101 with a wrench, so that H1 is the same as the center distance of the pull rod 2' in the horizontal roller assembly 1', and the nuts I 102 and the nuts II 103 are tightened after adjustment to prevent loosening.

[0072] One end of the support 5 is fixed on the rack assembly 3' through a bolt, and the other end is supported by the bearing seat 6 on the adjusting rod assembly 2. The support 5 needs to be provided with sufficient space in the middle to ensure that the connecting rod assembly 1 can pass through the space.

[0073] The adjusting rod assembly 2 is fixed on the support 5 through the cooperation between the trunnion 2021 of the adjusting block 202 and the bearing seat 6 on both sides, and the cooperation place is provided with a bushing II 18 made of self-lubricating material, which can lubricate the rotation of the adjusting block 202 during height adjustment.

[0074] The joint bearing 207 on the adjusting rod assembly 2 is inserted into the hole III 403 of the lower adjusting block II 4, the pin shaft assembly II 206 passes through the hole III 403, and the adjusting rod assembly 2 and the lower adjusting block II 4 are connected together.

[0075] The adjusting rod 201 is provided with external threads, the adjusting block 202 is provided with internal threads, and the adjusting rod 201 passes through the adjusting block 202 and is threadedly connected with the adjusting block 202. The external threads of the adjusting rod 201 are provided with a dust cover assembly I 211 and a dust cover assembly II 212, so as to prevent dust and other impurities from entering and affecting the thread connection precision. The rod end of the adjusting rod 201 is a square end, and the adjusting rod 201 can be rotated by clamping the square end with a wrench. The rod head of the adjusting rod 201 is inserted into the flange sleeve I 204, and the two are fixed by the screw assembly 209. The adjusting rod 201 and the flange sleeve I 204 are provided with a bushing III 210 made of self-lubricating material, which lubricates the rotation of the adjusting rod 201. The flange sleeve I 204 and the flange sleeve II 205 are connected by bolts. The knuckle bearing 207 is installed on the flange sleeve II 205 by internal and external threads, and the rotation of the knuckle bearing 207 can adjust the distance H2 between the pin shaft assembly II 206 and the adjusting block 202. After adjustment, the nut III 208 is tightened to prevent loosening.

[0076] In the present application, dry oil can be injected into the adjusting block 202 through the oil cup 203 to lubricate the thread connection between the adjusting rod 201 and the adjusting block 202.

[0077] In the present application, the lower adjusting block I 3 is provided with a scale disc 15, and the upper adjusting block 7 is provided with a pointer 14. During height adjustment, the scale disc 15 rotates with the lower adjusting block I 3, and the pointer 14 remains stationary. By reading the corresponding numerical value of the pointer, the height of the height adjustment can be recorded.

[0078] Specific implementation and adjustment method:

[0079] Implementation:

[0080] The rolling line height adjustment device of the present application can realize the overall upward or downward movement of the horizontal roller assembly 1', which in turn drives the horizontal upper roller 6' and the horizontal lower roller 7' to move in the same direction. As shown in the figure, when the horizontal upper roller 6' and the horizontal lower roller 7' are adjusted upward, the horizontal rolling line will be adjusted upward accordingly. Since the two vertical rollers are fixed on the rack assembly 3', the center line of the vertical roller pass will not change. After the horizontal upper roller 6' and the horizontal lower roller 7' are adjusted by a distance S, the horizontal rolling line and the center line of the vertical roller pass reach the same height. Figure 5

[0081] In the present application, the upper surface of the lower adjusting block I 3, the upper surface of the lower adjusting block II 4 and the lower surface of the upper adjusting block 7 are respectively provided with helical surfaces I 301, helical surfaces II 401 and helical surfaces III 701. By rotating the lower adjusting block I 3 and the lower adjusting block II 4, the relative position of the lower adjusting block I 3 and the lower adjusting block II 4 to the upper adjusting block 7 is changed, the relative thickness of the two adjusting blocks is changed, and the rolling line height adjustment is realized.

[0082] The specific adjustment method is as follows:​

[0083] Adjust the elevation downwards:

[0084] like Figure 8 As shown, clamp the square end of the adjusting rod 201 in the adjusting rod assembly 2 with a wrench, and rotate the adjusting rod 201 in the X direction. Since the adjusting rod 201 is inserted into the flange sleeve I 204 and there is a bushing III 210 between them, the adjusting rod 201 will only rotate inside the flange sleeve I 204 and will not drive the flange sleeve I 204 to rotate together.

[0085] When the adjusting rod 201 is rotated, because the adjusting rod 201 and the adjusting block 202 are threaded, the adjusting rod 201 will move to the left, which will cause the lower adjusting block II4 to rotate counterclockwise around the pin 10. The connecting rod assembly 1 connects the lower adjusting block I3 and the lower adjusting block II4 together, so the lower adjusting block I3 will rotate counterclockwise synchronously with the lower adjusting block II4.

[0086] like Figure 9 As shown, when the lower adjusting block I3 and the lower adjusting block II4 rotate counterclockwise, the heights of the spiral surfaces I301 and II401 will gradually decrease. As the lower adjusting block I3 and the lower adjusting block II4 rotate, the upper adjusting block 7 will gradually decrease under the gravity of the horizontal roll assembly 1′, and then the horizontal roll assembly 1′ will also decrease. Finally, the center line of the roll gap of the upper horizontal roll and the lower horizontal roll, that is, the elevation of the horizontal rolling line, will be adjusted downward.

[0087] Adjust the elevation upwards:

[0088] like Figure 8 As shown, by rotating the adjusting rod 201 in the opposite direction of X with a wrench, similar to the principle of adjusting the elevation downwards, the lower adjusting blocks I3 and II4 will rotate clockwise, and the heights of the spiral surfaces I301 and II401 will gradually increase. Through the interaction between the spiral surfaces I301, II401, and III701, the upper adjusting block 7 will be subjected to an upward force, which will in turn drive the horizontal roll assembly 1' to move upwards, thereby achieving the upward adjustment of the horizontal rolling line elevation.

[0089] In this invention, the spiral surface I301 of the lower adjusting block I3, the spiral surface II401 of the lower adjusting block II4, and the lower spiral surface III701 of the upper adjusting block 7 need to be ground during processing, with a contact rate of not less than 70%. During assembly, an appropriate amount of lubricating grease is applied to the spiral contact surfaces.

[0090] The rotation range of the lower adjusting block I 3 and the lower adjusting block II 4 is ±30°, corresponding to the value of ±3mm on the dial 15, that is, the elevation adjustment distance range is ±3mm, and the minimum unit of the dial 15 is 0.5mm, that is, the elevation adjustment accuracy is 0.5mm. When the elevation adjustment is performed, the value on the dial 15 corresponding to the pointer 14 is observed, so as to achieve the purpose of controlling the adjustment distance.

[0091] The application is suitable for the elevation adjustment of the horizontal rolling line in the universal mode of the profile rolling mill, and is also suitable for the elevation adjustment of the horizontal rolling line in the two-roll mode of the profile rolling mill.

[0092] The horizontal rolling line elevation adjustment device of the application is suitable for the "universal and two-roll" two modes of the profile rolling mill. When the elevation adjustment is performed, the adjusting rod is rotated by using a wrench, and moves along the axial direction under the action of the threaded pair, drives the screw joint surface of the lower adjusting block I and the lower adjusting block II to rotate. By changing the relative position of the joint surface, the relative thickness is changed, and then the rolling line elevation adjustment is realized. When the adjustment is performed, the value on the dial corresponding to the pointer is read to control the adjustment amount. The horizontal rolling line elevation adjustment device of the application has the advantages of simple structure, convenient design and operability.

[0093] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A universal mill rolling line elevation adjusting device, characterized by, The elevation adjusting device is located between the horizontal roller assembly (1') and the frame assembly (3'), wherein the horizontal roller assembly (1') is located on the elevation adjusting device, and the elevation adjusting device is located on the lower bottom surface of the frame assembly (3') window; The elevation adjusting device comprises two pad plates III (12), a lower adjusting block I (3), a lower adjusting block II (4), two upper adjusting blocks (7), two pin shafts (10), a connecting rod assembly (1), a support (5) and an adjusting rod assembly (2), the two pad plates III (12) are located on the frame assembly (3'), the lower adjusting block I (3) and the lower adjusting block II (4) are located above the two pad plates III (12) respectively, the two upper adjusting blocks (7) are located above the lower adjusting block I (3) and the lower adjusting block II (4) respectively, and the contact surfaces between the upper adjusting blocks (7) and the lower adjusting block I (3) and the lower adjusting block II (4) are all helical surfaces; the two pull rods (2') of the horizontal roller assembly (1') are located on the two upper adjusting blocks (7) respectively, and the pull rods (2') rotate on the upper adjusting blocks (7) when the roll gap is adjusted; one side pin shaft (10) passes through the upper adjusting block (7) on one side, the lower adjusting block I (3) and the pad plate III (12) on one side from top to bottom in sequence and is fixed on the frame assembly (3'), and the other side pin shaft (10) passes through the upper adjusting block (7) on the other side, the lower adjusting block II (4) and the pad plate III (12) on the other side from top to bottom in sequence and is fixed on the frame assembly (3'); The left and right ends of the connecting rod assembly (1) are connected with the lower adjusting block II (4) and the lower adjusting block I (3) respectively, and are used for realizing the synchronous rotation of the lower adjusting block I (3) and the lower adjusting block II (4) by a certain angle when the elevation is adjusted; one end of the support (5) is fixed on the frame assembly (3'), and the other end is connected with the adjusting rod assembly (2) and is used for supporting the adjusting rod assembly (2), and the connecting rod assembly (1) passes through the middle of the support (5); The adjusting rod assembly (2) comprises an adjusting rod (201), an adjusting block (202), a flange sleeve I (204), a flange sleeve II (205), a pin shaft assembly II (206), a joint bearing (207) and a nut III (208), the adjusting rod (201) is provided with external threads, the adjusting block (202) is provided with internal threads, the adjusting rod (201) passes through the adjusting block (202) and is threadedly connected with the adjusting block (202); the rod end of the adjusting rod (201) is a square end head, the square end head is clamped by a wrench to rotate the adjusting rod (201), the rod head of the adjusting rod (201) is inserted into the flange sleeve I (204) and is fixed by a screw assembly (209); the flange sleeve I (204) and the flange sleeve II (205) are connected by bolts, the joint bearing (207) is installed on the flange sleeve II (205) by internal and external threads, the joint bearing (207) is inserted into a hole III (403) formed on the lower adjusting block II (4), the pin shaft assembly II (206) passes through the hole III (403), so that the adjusting rod assembly (2) and the lower adjusting block II (4) are connected together, the joint bearing (207) is rotated to adjust the distance H2 between the pin shaft assembly II (206) and the adjusting block (202), and after the adjustment is completed, the nut III (208) is tightened to prevent loosening; The upper surface of the lower adjusting block I (3), the upper surface of the lower adjusting block II (4) and the lower surface of the upper adjusting block (7) are respectively provided with helical surfaces I (301), helical surfaces II (401) and helical surfaces III (701), by rotating the lower adjusting block I (3) and the lower adjusting block II (4), the relative positions of the combination surfaces of the lower adjusting block I (3), the lower adjusting block II (4) and the upper adjusting block (7) are changed, and then the relative thicknesses between the lower adjusting block I (3) and the upper adjusting block (7) and between the lower adjusting block II (4) and the upper adjusting block (7) are changed, so that the rolling line elevation adjustment is realized.

2. The universal mill rolling line elevation adjustment device according to claim 1, characterized in that, The two pad plates III (12) and the lower adjusting block I (3) and the lower adjusting block II (4) are respectively provided with pad plates II (9), the positioning pins I (13) pass through the pad plates III (12) and the pad plates II (9) and are inserted into the rack assembly (3'), the pad plates II (9) are made of self-lubricating materials and play a lubricating role when the lower adjusting block I (3) and the lower adjusting block II (4) are rotated. The upper adjusting block (7) is provided with a pad I (8) above, the pad I (8) is of self-lubricating material, the pull rod (2') falls on the pad I (8), and the pull rod (2') rotates on the pad I (8) when the roll gap is adjusted; the pad I (8) is positioned with the upper adjusting block (7) through a positioning pin III (17), so that the pull rod (2') does not rotate with the pad I (8) when rotating; a side pin shaft (10) passes through a side pad I (8), a side upper adjusting block (7), a lower adjusting block I (3) and a side pad III (12) from top to bottom and is fixed on the rack assembly (3'), and the other side pin shaft (10) passes through the other side pad I (8), the other side upper adjusting block (7), the lower adjusting block II (4) and the other side pad III (12) from top to bottom and is fixed on the rack assembly (3'); the bushing (11) is further provided between the pin shaft (10) and the parts through which the pin shaft (10) passes, and the bushing (11) is of self-lubricating material and plays a lubricating role on the rotation of the lower adjusting block I (3) and the lower adjusting block II (4) and the lifting of the upper adjusting block (7); The pad III (12) is fixed with a positioning pin II (16), a hole IV (702) of the upper adjusting block (7) passes through the positioning pin II (16), and the positioning pin II (16) is used for positioning the upper adjusting block (7) and ensuring that the upper adjusting block (7) does not rotate but only moves up and down during the height adjustment; the diameter of the hole IV (702) is greater than the diameter of the positioning pin II (16).

3. The universal mill gauge adjustment device of claim 1, wherein, The connecting rod assembly (1) comprises a connecting rod (101), a nut I (102), a nut II (103), a connecting block I (104), a connecting block II (105) and two pin shaft assemblies I (106), the left and right ends of the connecting rod (101) are provided with external threads with opposite rotation directions, the connecting block I (104) and the connecting block II (105) are provided with internal threads corresponding to the rotation directions of the left and right ends of the connecting rod (101), and the connecting block I (104) and the connecting block II (105) are fixed on the left and right sides of the connecting rod (101) through the internal and external thread connection; the connecting block I (104) and the connecting block II (105) are inserted into the hole I (302) of the lower adjusting block I (3) and the hole II (402) of the lower adjusting block II (4) respectively, the two pin shaft assemblies I (106) pass through the hole I (302) and the hole II (402) respectively and fix the connecting block I (104) and the connecting block II (105); the distance H1 between the two pin shaft assemblies I (106) is adjusted by rotating the connecting rod (101) with a wrench, so that H1 is the same as the center distance of the pull rod (2') in the horizontal roller assembly (1'), and the nuts I (102) and II (103) are tightened after the adjustment is completed.

4. The universal mill gauge adjustment device of claim 1, wherein, The outer thread of the adjusting rod (201) is also provided with a dust cover assembly I (211) and a dust cover assembly II (212), and the dust cover assembly I (211) and the dust cover assembly II (212) are located on both sides of the adjusting block (202); a bushing III (210) made of self-lubricating material is arranged between the adjusting rod (201) and the flange sleeve I (204) to lubricate the rotation of the adjusting rod (201).

5. The universal mill rolling line elevation adjustment device according to claim 4, characterized in that, The adjusting block (202) is provided with an oil cup (203), and dry oil is injected into the adjusting block (202) through the oil cup (203) to lubricate the threaded connection between the adjusting rod (201) and the adjusting block (202).

6. The universal mill gauge adjustment device of claim 4, wherein, The other end of the support (5) supports the adjusting rod assembly (2) through the bearing seats (6) arranged on both sides, and the adjusting rod assembly (2) is fixed on the support (5) through the cooperation between the trunnions (2021) of the adjusting block (202) and the bearing seats (6) on both sides, and a bushing II (18) made of self-lubricating material is arranged at the cooperation position, and the bushing II (18) is used for lubricating the rotation of the adjusting block (202) during height adjustment.

7. The universal mill gauge adjustment device of claim 1, wherein, The lower adjusting block I (3) is provided with a scale disc (15), and the upper adjusting block (7) is provided with a pointer (14), and during height adjustment, the scale disc (15) rotates with the lower adjusting block I (3), and the pointer (14) remains stationary, and the height of the height adjustment is recorded by reading the corresponding value of the pointer.

8. A method of adjusting the elevation of a rolling line of a universal rolling mill as claimed in any one of claims 1 to 7, characterized in that, It comprises downward height adjustment and upward height adjustment; The specific steps of downward height adjustment are as follows: S1, the square end of the adjusting rod (201) in the adjusting rod assembly (2) is clamped with a wrench, and the adjusting rod (201) is rotated in the X direction, because the adjusting rod (201) is inserted into the flange sleeve I (204), and a bushing III (210) is arranged between them, so that the adjusting rod (201) only rotates inside the flange sleeve I (204) and does not rotate the flange sleeve I (204) together; S2, when the adjusting rod (201) is rotated, the adjusting rod (201) moves to the left side due to the threaded pair cooperation between the adjusting rod (201) and the adjusting block (202), and then drives the lower adjusting block II (4) to rotate counterclockwise around the pin shaft (10), and the connecting rod assembly (1) connects the lower adjusting block I (3) and the lower adjusting block II (4) together, so that the lower adjusting block I (3) rotates counterclockwise synchronously with the lower adjusting block II (4); S3, when the lower adjusting block I (3) and the lower adjusting block II (4) rotate counterclockwise, the height of the helical surface I (301) and the helical surface II (401) gradually decreases, and with the rotation of the lower adjusting block I (3) and the lower adjusting block II (4), the upper adjusting block (7) is gradually lowered under the action of the gravity of the horizontal roller assembly (1'), and then the horizontal roller assembly (1') is also lowered, and finally the center line of the roll gap of the horizontal upper roller and the horizontal lower roller, that is, the horizontal rolling line, is adjusted downward; The specific steps of upward height adjustment are as follows: S01, with wrench along the X opposite direction of rotation adjustment rod (201), the same reason to adjust the principle of elevation down, rotating adjustment rod (201), the adjustment rod (201) to the right side, and then drive the lower adjustment block II (4) with pin shaft (10) as the axis clockwise rotation, then the lower adjustment block I (3) and the lower adjustment block II (4) synchronous clockwise rotation, the height of the helical surface I (301) and helical surface II (401) will gradually increase; S02, through the interaction between the helical surface I (301), helical surface II (401) and helical surface III (701), the upper adjustment block (7) will be subjected to an upward force, and then drive the horizontal roller assembly (1') to move up, realize the horizontal rolling line elevation adjustment up.

9. The adjusting method of the universal mill rolling line elevation adjusting device according to claim 8, characterized by, The helical surface I (301), helical surface II (401) and lower helical surface III (701) are ground at the same time, the contact rate is not less than 70%, and the appropriate amount of lubricating grease is coated on the helical contact surface during assembly; The rotation range of the lower adjustment block I (3) and the lower adjustment block II (4) is ±30°, and the corresponding scale dial (15) value is ±3mm, that is, the elevation adjustment distance range is ±3mm, and the minimum unit of the scale dial (15) is 0.5mm, that is, the elevation adjustment accuracy is 0.5mm; when adjusting the elevation, observe the pointer (14) corresponding to the scale dial (15) value, so as to master the control adjustment distance.

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