Auxiliary roller changing device for plate rolling machine

Abstract

This invention discloses an auxiliary roll changing device for a plate rolling machine. The auxiliary roll changing device includes a roll changing assembly, a lifting roller conveyor, a balancing hydraulic cylinder, a planetary reducer, a hydraulic motor, a locking pin, and a positioning assembly. The roll changing assembly is symmetrically arranged on both sides of the upper roll and fixed to the bending roll seat. The lifting roller conveyor is located below the upper roll. The balancing hydraulic cylinder is located at one end of the bending roll seat. The planetary reducer is located at one splined end of the upper roll. The hydraulic motor drives the planetary reducer, which is horizontally adjusted by the balancing hydraulic cylinder. The locking pin is rotatably connected to the bending roll seat and secured by the locking pin. The positioning assembly is positioned between the planetary reducer and the upper roll for positioning. This invention effectively realizes automatic roll changing for the upper roll of a large plate rolling machine, effectively improving the roll changing efficiency, reducing downtime, and effectively reducing manual intervention and labor intensity. Simultaneously, it effectively avoids roll surface scratches during the roll changing process, reducing maintenance costs.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of roll changing of plate rolling machine, and particularly relates to an auxiliary roll changing device of plate rolling machine. BACKGROUND

[0002] The plate rolling machine is a device for bending metal plates into cylindrical, arc-shaped or other shapes, and is widely used in shipbuilding industry, petroleum industry and military and chemical industry. The working principle of the plate rolling machine is to use the relative position change and rotational movement of the working roll to make the plate produce plastic deformation by three-point continuous bending in a free state.

[0003] The upper roll of a large plate rolling machine has a large size and a weight of more than 40 tons, and is driven by spline transmission. In the prior art, the roll changing operation is usually performed by using a crane, auxiliary tooling and manual point operation to pull out and change the roll, which results in a long roll changing period and thus reduces the production efficiency. In addition, the roll surface is easily scratched during the roll changing process, thereby increasing the maintenance cost. SUMMARY

[0004] To at least partially solve the technical problems existing in the prior art, the present application provides an auxiliary roll changing device of plate rolling machine.

[0005] The auxiliary roll changing device of plate rolling machine of the present application is characterized in that the auxiliary roll changing device of plate rolling machine comprises a roll changing assembly, a lifting roller way, a balance hydraulic cylinder, a planetary reducer, a hydraulic motor, a locking pin shaft and a positioning assembly, the roll changing assembly is symmetrically arranged on both sides of the upper roll and fixed to the bending roll seat, the lifting roller way is arranged below the upper roll, the balance hydraulic cylinder is arranged at one end of the bending roll seat, the planetary reducer is arranged at one end of the spline of the upper roll, the hydraulic motor drives the planetary reducer, the planetary reducer is horizontally adjusted by the balance hydraulic cylinder, the locking pin shaft is rotatably connected to the bending roll seat, the planetary reducer is fastened by the locking pin shaft, and the positioning assembly is arranged between the planetary reducer and the upper roll for positioning.

[0006] The roll changing assembly comprises a roll changing support, a guide rod, a push-pull hydraulic cylinder, a connecting plate and a chuck, the guide rod is slidably arranged below the roll changing support, the push-pull hydraulic cylinder is arranged at the bottom of the roll changing support, the connecting plate is arranged at the output end of the push-pull hydraulic cylinder and the guide rod, the chuck is connected to the upper roll, and the connecting plate is connected to the chuck.

[0007] Further, in the auxiliary roll changing device of plate rolling machine of the present application, the roll changing support is arranged in an eight-shaped manner, the rear end of the roll changing support is fixed to the rack by bolts, and the front end of the roll changing support is fixed to the bending roll seat by bolts.

[0008] Further, in the auxiliary roll changing device of the plate rolling machine, the middle part of the roll changing support is welded with a sliding support, the sliding support is matched with the guide rod, the guide rod is inserted into the sliding support and is in sliding connection with the sliding support, and the output end of the guide rod is fixedly connected with the front end of the connecting plate through bolts.

[0009] Further, in the auxiliary roll changing device of the plate rolling machine, the push-pull hydraulic cylinder is fixedly connected with the sliding support through bolts, the output end of the push-pull hydraulic cylinder is connected with the middle part of the connecting plate through bolts, and the output length of the push-pull hydraulic cylinder is matched with the sliding distance of the guide rod in the sliding support.

[0010] Further, in the auxiliary roll changing device of the plate rolling machine, the chuck is in a semi-circular ring type, the two ends of the chuck are connected with the rear end of the connecting plate through bolts, a clamping table is arranged on the chuck, the diameter of the chuck is matched with the diameter of the upper roll, and the clamping table is inserted into the upper roll and is clamped with the upper roll.

[0011] Further, in the auxiliary roll changing device of the plate rolling machine, the lifting roller way comprises a lifting mechanism, a conveying roller and a speed reducer motor, the conveying roller is installed on the top of the lifting mechanism, the speed reducer motor drives the conveying roller, the middle part of the conveying roller is in a V-shaped roller surface, and the V-shaped roller surface is matched with the upper roll.

[0012] Further, in the auxiliary roll changing device of the plate rolling machine, the balance hydraulic cylinder is fixedly connected with the bearing seat support through bolts, and the output end of the balance hydraulic cylinder is connected with the hinge shaft of the planetary reducer.

[0013] Further, in the auxiliary roll changing device of the plate rolling machine, one end of the locking pin shaft is connected with the hinge shaft of the roll bending seat, the two ends of the planetary reducer are provided with connecting sliding grooves, and the other end of the locking pin shaft is connected with the nut of the planetary reducer through the connecting sliding grooves.

[0014] Further, in the auxiliary roll changing device of the plate rolling machine, the positioning assembly comprises a spline template and a clamping plate, the spline template is matched with the spline of the upper roll, the clamping plate is matched with the groove between the spline of the upper roll, and the clamping plate is fixedly connected with the spline template through bolts.

[0015] The auxiliary roll changing device of the plate rolling machine has the following advantages and beneficial effects:

[0016] The automatic roll changing of the upper roll of the large plate rolling machine is effectively realized, the roll changing efficiency of the plate rolling machine is effectively improved, the downtime is reduced, the manual participation and labor intensity are effectively reduced, and the roll surface is effectively prevented from being scratched during the roll changing process, thereby reducing the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a front view of the auxiliary roller changing device for a plate rolling machine according to the present invention;

[0019] Figure 2 This is a top view of the auxiliary roller changing device for the plate rolling machine according to the present invention;

[0020] Figure 3 This is a left view of the auxiliary roller changing device for the plate rolling machine according to the present invention;

[0021] Figure 4 for Figure 1 The cross-sectional view of AA shows the connection structure between the chuck and the connecting plate;

[0022] Figure 5 This is a schematic diagram of the spline template structure of the auxiliary roller changing device for the plate rolling machine of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 60: Bearing housing support; 70: Machine frame; 80: Upper roller; 90: Bending roller seat

[0025] 1: Roller changing assembly;

[0026] 11: Roller changing bracket; 111: Sliding bracket;

[0027] 12: Guide rod; 13: Push-pull hydraulic cylinder; 14: Connecting plate;

[0028] 15: chuck; 151: chuck console;

[0029] 2: Lifting roller conveyor; 21: Lifting mechanism;

[0030] 22: Conveyor roller; 221: V-shaped roller surface;

[0031] 23: Gear motor;

[0032] 3: Balanced hydraulic cylinder;

[0033] 4: Planetary reducer; 41: Connecting slide groove;

[0034] 5: Hydraulic motor; 6: Locking pin;

[0035] 7: Positioning component; 71: Spline template; 72: Cardboard. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions will be described clearly and completely below with reference to the embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] As shown in Figures 1 to 5 The auxiliary roll changing device of the veneer lathe comprises a roll changing assembly 1, a lifting roller way 2, a balance hydraulic cylinder 3, a planetary reducer 4, a hydraulic motor 5, a locking pin shaft 6 and a positioning assembly 7. The roll changing assembly 1 is symmetrically arranged at both sides of an upper roller 80 and fixed with a bending roller seat 90. The lifting roller way 2 is arranged below the upper roller 80. The balance hydraulic cylinder 3 is arranged at one end of the bending roller seat 90. The planetary reducer 4 is arranged at a spline end of the upper roller 80. The hydraulic motor 5 drives the planetary reducer 4. The planetary reducer 4 is horizontally adjusted through the balance hydraulic cylinder 3. The locking pin shaft 6 is rotatably connected to the bending roller seat 90. The planetary reducer 4 is fastened through the locking pin shaft 6. The positioning assembly 7 is arranged between the planetary reducer 4 and the upper roller 80 for positioning. Wherein:

[0038] The roll changing assembly 1 comprises a roll changing support 11, a guide rod 12, a push-pull hydraulic cylinder 13, a connecting plate 14 and a chuck 15. The guide rod 12 is slidingly arranged below the roll changing support 11. The push-pull hydraulic cylinder 13 is arranged at the bottom of the roll changing support 11. The connecting plate 14 is arranged at the output ends of the push-pull hydraulic cylinder 13 and the guide rod 12. The chuck 15 is connected with the upper roller 80. The connecting plate 14 is connected with the chuck 15.

[0039] Further, in the auxiliary roll changing device of the veneer lathe, the roll changing support 11 is arranged in a figure-of-eight shape. The rear end of the roll changing support 11 is fixed with the rack 70 through bolts. The front end of the roll changing support 11 is fixed with the bending roller seat 90 through bolts. Thus, the roll changing support 11 has more supporting force, ensuring the safety during the roll changing process.

[0040] Further, in the auxiliary roll changing device of the veneer lathe, a sliding support 111 is welded in the middle of the roll changing support 11. The sliding support 111 is matched with the guide rod 12. The guide rod 12 is inserted into the sliding support 111 and slidingly connected with the sliding support 111. The output end of the guide rod 12 is fixedly connected with the front end of the connecting plate 14 through bolts. Thus, the push-pull hydraulic cylinder 13 will not be twisted during the pushing and pulling process of the upper roller 80, ensuring the movement of the upper roller 80 in one direction.

[0041] Further, in the auxiliary roll changing device of the veneer lathe, the push-pull hydraulic cylinder 13 is fixedly connected with the sliding bracket 111 through bolts, the output end of the push-pull hydraulic cylinder 13 is connected with the middle part of the connecting plate 14 through bolts, and the output length of the push-pull hydraulic cylinder 13 matches the sliding distance of the guide rod 12 in the sliding bracket 111, so that the working stability of the push-pull hydraulic cylinder 13 is ensured, and the push-pull hydraulic cylinder 13 is more easily pushed or pulled.

[0042] Further, in the auxiliary roll changing device of the veneer lathe, the chuck 15 is in a semicircular ring type, the two ends of the chuck 15 are connected with the rear end of the connecting plate 14 through bolts, the chuck 15 is provided with a clamping table 151, the diameter of the chuck 15 matches the diameter of the upper roll 80, and the clamping table 151 is inserted into the inside of the upper roll 80 and clamped with the upper roll 80, so that the connection with the upper roll 80 is ensured, and the surface of the upper roll 80 is not scratched during replacement.

[0043] Further, in the auxiliary roll changing device of the veneer lathe, the lifting roller way 2 comprises a lifting mechanism 21, a conveying roller 22 and a speed reducer motor 23, the conveying roller 22 is installed at the top of the lifting mechanism 21, the speed reducer motor 23 drives the conveying roller 22, the middle part of the conveying roller 22 is in a V-shaped roller surface 221, and the V-shaped roller surface 221 matches the upper roll 80, so that the upper roll 80 can be quickly conveyed into or out of the bending roll seat 90, the labor intensity is effectively reduced, and the downtime is reduced.

[0044] Further, in the auxiliary roll changing device of the veneer lathe, the balance hydraulic cylinder 3 is fixedly connected with the bearing seat bracket 60 through bolts, and the output end of the balance hydraulic cylinder 3 is connected with the hinge shaft of the planetary reducer 4, so that the planetary reducer 4 can be ensured to be in a horizontal position, and the installation of the upper roll 80 is facilitated.

[0045] Further, in the auxiliary roll changing device of the veneer lathe, one end of the locking pin shaft 6 is connected with the bending roll seat 90 through a hinge shaft, the planetary reducer 4 is provided with a connecting sliding groove 41 at both ends, and the other end of the locking pin shaft 6 is connected with the planetary reducer 4 through the connecting sliding groove 41 and a nut, so that the connection of the planetary reducer 4 is ensured.

[0046] Further, in the auxiliary roll changing device of the veneer lathe, the positioning assembly 7 comprises a spline template 71 and a clamping plate 72, the spline template 71 matches the spline of the upper roll 80, the clamping plate 72 corresponds to the groove between the splines of the upper roll 80, and the clamping plate 72 is fixedly connected with the spline template 71 through bolts, so that the spline of the planetary reducer 4 and the spline of the upper roll 80 can be quickly matched, and the roll changing efficiency is effectively improved.

[0047] Specifically, when the old roller extraction operation is performed, the lifting mechanism 21 is started to lift the conveying roller 22, so that the V-shaped roller surface 221 is attached to the upper roller 80. At this time, the locking pin shaft 6 is rotated to make the locking pin shaft 6 clamped into the connecting sliding groove 41, and the planetary reducer 4 is clamped by the two end nuts. At this time, the output end of the push-pull hydraulic cylinder 13 is in an extended state, the clamping table 151 is inserted into the clamping groove of the upper roller 80, so that the chuck 15 is attached to the upper roller 80, the output end of the push-pull hydraulic cylinder 13 is retracted, the connecting plate 14 drives the chuck 15 to separate the upper roller 80 from the planetary reducer 4. At the same time, the upper roller 80 drives the conveying roller 22 to rotate through the reduction motor 23, the guide rod 12 is slid in the sliding support 111 to ensure that the upper roller 80 does not twist during the separation process, and the upper roller 80 is conveyed out of the plate rolling machine through the friction force between the V-shaped roller surface 221 and the upper roller 80.

[0048] When the new roller installation operation is performed, the balance hydraulic cylinder 3 is started, and the balance hydraulic cylinder 3 drives the planetary reducer 4 to be in the same horizontal position as the upper roller 80. At this time, the clamping plate 72 is inserted into the groove between the splines of the upper roller 80, and the relative position of the clamping plate 72 and the spline template 71 is fixed by the bolt. After determination, the clamping plate 72 is pulled out, so that the spline template 71 is attached to the planetary reducer 4. At this time, the jog hydraulic motor 5 drives the planetary reducer 4 to rotate, so that the center of one of the spline teeth of the planetary reducer 4 coincides with the center of the clamping plate 72. At this time, the upper roller 80 is conveyed to the specified position through the conveying roller 22, and the chuck 15 is installed. The output end of the push-pull hydraulic cylinder 13 is extended to drive the upper roller 80 to move to the planetary reducer 4, until the upper roller 80 is completely inserted into the planetary reducer 4, and the roller replacement is completed.

[0049] In summary, compared with the prior art, the plate rolling machine auxiliary roller replacement device has the following advantages and beneficial effects: the automatic roller replacement of the upper roller of the large plate rolling machine is effectively realized, the large-size upper roller is quickly pushed away or inserted into the planetary reducer by the cooperation of the guide rod and the push-pull hydraulic cylinder, the manual participation and labor intensity are effectively reduced, the connection mode of the chuck and the upper roller effectively avoids the scratch of the roller surface, the positioning assembly quickly aligns the upper roller and the planetary reducer, the downtime is effectively reduced, and the roller replacement efficiency is improved.

[0050] It should be noted that, in this article, unless otherwise specified and limited, the term "connection" or its synonyms should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, and those skilled in the art can understand the specific meaning of the above-mentioned term in the present application according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. At the same time, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this article are referred to the placement state shown in the drawings.

[0051] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A roll changing device for a veneer lathe, characterized in that The auxiliary roll changing device of the veneer lathe comprises a roll changing assembly, a lifting roller way, a balance hydraulic cylinder, a planetary reducer, a hydraulic motor, a locking pin shaft and a positioning assembly, the roll changing assembly is symmetrically arranged at both sides of the upper roll and fixed with the bending roll seat, the lifting roller way is arranged below the upper roll, the balance hydraulic cylinder is arranged at one end of the bending roll seat, the planetary reducer is arranged at one end of the key of the upper roll, the hydraulic motor drives the planetary reducer, the planetary reducer is horizontally adjusted through the balance hydraulic cylinder, the locking pin shaft is rotatably connected with the bending roll seat, the planetary reducer is fastened through the locking pin shaft, and the positioning assembly is arranged between the planetary reducer and the upper roll for positioning. The roll changing assembly comprises a roll changing support, a guide rod, a push-pull hydraulic cylinder, a connecting plate and a chuck, the guide rod is slidably arranged below the roll changing support, the push-pull hydraulic cylinder is arranged at the bottom of the roll changing support, the connecting plate is arranged at the output end of the push-pull hydraulic cylinder and the guide rod, and the chuck is connected with the upper roll.

2. The roll changer auxiliary device of claim 1, wherein The roll changing support is arranged in a split type, the rear end of the roll changing support is fixed with the rack through bolts, and the front end of the roll changing support is fixed with the bending roll seat through bolts.

3. The roll replacement assisting device according to claim 1, wherein The middle part of the roll changing support is welded with a sliding support, the sliding support is matched with the guide rod, the guide rod is inserted into the sliding support and slidably connected with the sliding support, and the output end of the guide rod is fixedly connected with the front end of the connecting plate through bolts.

4. The roll replacement assisting device according to claim 3, wherein The push-pull hydraulic cylinder is fixedly connected with the sliding support through bolts, the output end of the push-pull hydraulic cylinder is connected with the middle part of the connecting plate through bolts, and the output length of the push-pull hydraulic cylinder is matched with the sliding distance of the guide rod in the sliding support.

5. The roll replacement assisting device according to claim 1, wherein The chuck is in a semi-circular ring type, the two ends of the chuck are connected with the rear end of the connecting plate through bolts, the chuck is provided with a clamping table, the diameter of the chuck is matched with the diameter of the upper roll, and the clamping table is inserted into the upper roll and clamped with the upper roll.

6. The roll replacement assisting device according to claim 1, wherein The lifting roller way comprises a lifting mechanism, a conveying roller and a speed reducer, the conveying roller is mounted on the top of the lifting mechanism, the speed reducer drives the conveying roller, the middle part of the conveying roller is in a V-shaped roller surface, and the V-shaped roller surface is matched with the upper roll.

7. The roll replacement assisting device according to claim 1, wherein The balance hydraulic cylinder is fixed on the bearing seat support through bolts, and the output end of the balance hydraulic cylinder is connected with the hinge shaft of the planetary reducer.

8. The roll replacement assisting device according to claim 1, wherein One end of the locking pin shaft is connected with the hinge shaft of the bending roll seat, the planetary reducer is provided with a connecting sliding groove at both ends, and the other end of the locking pin shaft is connected with the planetary reducer through the connecting sliding groove and a nut.

9. The roll replacement assisting device according to claim 1, wherein The positioning assembly comprises a spline template and a clamping plate, the spline template is matched with the spline of the upper roll, the clamping plate is correspondingly provided with a groove between the spline of the upper roll and the spline template, and the clamping plate is fixed with the spline template through bolts.

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