Double-roller synchronous automatic roller changing device for steel rolling production

Abstract

The utility model discloses a double-roller synchronous automatic roller changing device for steel rolling production, and belongs to the technical field of steel rolling production. A double-roller synchronous automatic roller changing device for steel rolling production comprises a rolling mill and a hydraulic lock frame, a retention roller is arranged in the rolling mill, an assembly roller is arranged below the retention roller, the hydraulic lock frame is installed on one side of the bottom of the rolling mill, and a lead screw shaft frame is arranged on the top of the rolling mill. In order to solve the problems that an existing rolling mill and a roller are assembled in a bolt anchoring mode in order to guarantee the stability of a structure, manual cooperation with equipment is needed for disassembly and assembly once roller replacement operation needs to be carried out, the time consumed in the process is long, and efficient machining is not facilitated. The assembly roller at the bottom can be matched with hydraulic equipment to be directly withdrawn from the interior of the rolling mill after the locking structure is removed, and the retention roller at the top is pushed downwards through the lead screw shaft bracket and the limiting partition plate after the assembly roller is withdrawn, so that quick disassembly and assembly operation of the two rollers can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel rolling production technology, and specifically to a double-roll synchronous automatic roll changing device for steel rolling production. BACKGROUND

[0002] During the rolling of section steel, the work rolls of the rolling mill often need to be replaced. The roll changing system of the rolling mill mainly draws the work rolls by a roll changing trolley with a cable. The transverse moving train needs to drive the lining plate to switch between the roll drawing position and the roll changing position, so that the roll changing trolley can draw the old work rolls from the bridge or supply the new work rolls to the bridge.

[0003] The existing rolling mill and work rolls are assembled by means of bolt anchoring to ensure the stability of the structure. Once the roll changing operation is needed, manual cooperation with the equipment is required for disassembly and assembly, which is time-consuming and not conducive to efficient processing. UTILITY MODEL CONTENT

[0004] The utility model discloses a double-roll synchronous automatic roll changing device for steel rolling production. The assembly roll at the bottom can be directly removed from the inside of the rolling mill after the locking structure is released, and the fixed roll at the top can be pushed down by the screw rod shaft frame and the limiting partition plate after the assembly roll is removed. This can realize the quick disassembly and assembly of the two work rolls and solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double-roll synchronous automatic roll changing device for steel rolling production, comprising a rolling mill and a hydraulic lock frame. The inside of the rolling mill is provided with a fixed roll, and the lower part of the fixed roll is provided with an assembly roll. The hydraulic lock frame is installed on one side of the bottom of the rolling mill. The top of the rolling mill is provided with a screw rod shaft frame, which is connected with the rolling mill through internal threads. The bottom of the rolling mill is provided with a horizontal base.

[0006] Further, a limiting partition plate is arranged between the fixed roll and the rolling mill, and the limiting partition plate is connected with the screw rod shaft frame through bolts.

[0007] Further, both ends of the fixed roll and the assembly roll are provided with bearing seats, and the fixed roll and the assembly roll are rotatably connected with the bearing seats. The bearing seats are connected with the rolling mill through clamping grooves.

[0008] Further, the outer side of the bearing seat is respectively provided with an adapter shaft and an independent motor, and the adapter shaft and the independent motor are respectively installed at both ends of the fixed roll and the assembly roll through flanges.

[0009] Further, the hydraulic lock frame comprises two groups of rocker arms and clamps, and the rocker arms and the clamps are arranged in an integrated structure. The rocker arms are rotatably connected with the hydraulic lock frame. The other end of the rocker arm is provided with a hydraulic cylinder, and the hydraulic cylinder is connected with the rocker arm through a hinge frame.

[0010] Further, the hydraulic cylinders are provided with locks, the locks are connected with the hydraulic cylinders through connecting rods, and the two sides of the independent motor are provided with lock shafts, and the lock shafts are connected with the clamps through clamping grooves.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The assembled roller at the bottom can be directly withdrawn from the inside of the rolling mill by cooperating with the hydraulic equipment after the locking structure is released, and the fixed roller at the top is pushed down after the assembled roller is withdrawn through the screw rod shaft frame and the limiting partition plate, so that the quick disassembly and assembly operation of the two rollers can be realized.

[0013] 2. The utility model uses the hydraulic lock frame to replace the traditional bolt anchoring mode to connect the roller and the rolling mill, two groups of hydraulic cylinders control two groups of rocker arms and clamp structures, the rocker arms are turned over through the extension and contraction of the hydraulic cylinders, when the hydraulic cylinders are contracted, the rocker arms are turned over outward, the clamp is separated from the lock shaft, and vice versa, when the hydraulic cylinders are extended, the rocker arms are turned over inward, the clamp is engaged with the lock shaft to complete the fixation, while the stability is ensured, the disassembly and assembly steps are optimized to the maximum extent, and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall front view of the utility model;

[0015] Figure 2 It is the overall side view of the utility model;

[0016] Figure 3 It is the assembled roller structure schematic view of the utility model;

[0017] Figure 4 It is the hydraulic lock frame structure schematic view of the utility model.

[0018] In the drawing: 1, rolling mill; 2, fixed roller; 3, assembled roller; 4, hydraulic lock frame; 5, independent motor; 6, adapter shaft; 101, horizontal base; 102, screw rod shaft frame; 103, bearing seat; 1021, limiting partition plate; 401, rocker arm; 402, clamp; 403, hinged frame; 404, lock; 405, hydraulic cylinder; 501, lock shaft. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present utility model.

[0020] In order to solve the problem that the existing rolling mill and rolling mill are assembled by the bolt anchoring mode for ensuring the stability of the structure, and once the rolling needs to be replaced, manual cooperation with the equipment is needed for disassembly and assembly, the process is time-consuming, and it is not conducive to efficient processing, please refer to Figures 1-4 The present utility model provides the following scheme:

[0021] A double-roller synchronous automatic roller replacement device for steel rolling production, comprising a rolling mill 1 and a hydraulic lock frame 4, the inside of the rolling mill 1 is provided with a fixed roller 2, and the lower part of the fixed roller 2 is provided with an assembled roller 3, wherein the hydraulic lock frame 4 is installed on one side of the bottom of the rolling mill 1, the top of the rolling mill 1 is provided with a screw rod shaft frame 102, the screw rod shaft frame 102 is connected with the rolling mill 1 through internal threads, the bottom of the rolling mill 1 is provided with a horizontal base 101, a limiting partition plate 1021 is arranged between the fixed roller 2 and the rolling mill 1, the limiting partition plate 1021 is connected with the screw rod shaft frame 102 through bolts, the assembled roller 3 at the bottom can be directly removed from the inside of the rolling mill 1 after the locking structure is released, and the fixed roller 2 at the top can be pushed down through the screw rod shaft frame 102 and the limiting partition plate 1021 after the assembled roller 3 is removed, so that the quick disassembly and assembly of the two rollers can be realized.

[0022] Specifically, the two ends of the fixed roller 2 and the assembled roller 3 are provided with bearing seats 103, and the fixed roller 2 and the assembled roller 3 are rotatably connected with the bearing seats 103, wherein the bearing seats 103 are connected with the rolling mill 1 through clamping grooves, the outer sides of the bearing seats 103 are respectively provided with adapter shafts 6 and independent motors 5, the adapter shafts 6 and the independent motors 5 are respectively installed at the two ends of the fixed roller 2 and the assembled roller 3 through flanges, the two ends of the fixed roller 2 and the assembled roller 3 are respectively provided with independent bearing seat 103 structures, and the bearing seats 103 are disassembled and assembled together with the rollers.

[0023] Specifically, the hydraulic lock frame 4 comprises two groups of rocker arms 401 and clamps 402, the rocker arms 401 and the clamps 402 are arranged in an integrated structure, the rocker arms 401 are rotationally connected with the hydraulic lock frame 4, the other ends of the rocker arms 401 are provided with hydraulic cylinders 405, the hydraulic cylinders 405 are connected with the rocker arms 401 through hinged frames 403, lock bolts 404 are arranged between the hydraulic cylinders 405, the lock bolts 404 are connected with the hydraulic cylinders 405 through connecting rods, lock shafts 501 are arranged on both sides of the independent motor 5, the lock shafts 501 are connected with the clamps 402 through clamping grooves, the hydraulic lock frame 4 is connected with the bottom assembly roller 3 for use, the hydraulic lock frame 4 is used to replace the traditional bolt anchoring mode to connect the roller and the rolling mill, two groups of hydraulic cylinders 405 control two groups of rocker arms 401 and clamp structures 402 respectively, the rocker arms 401 are turned over through the extension and contraction of the hydraulic cylinders 405, when the hydraulic cylinders 405 are contracted, the rocker arms 401 are turned over outward, the clamps 402 are separated from the lock shafts 501, on the contrary, when the hydraulic cylinders 405 are extended, the rocker arms 401 are turned over inward, the clamps 402 are engaged with the lock shafts 501 to complete the fixing, while ensuring stability, the disassembly and assembly steps are optimized to the maximum extent, and the operation efficiency is improved.

[0024] The working principle is that two groups of hydraulic cylinders 405 control two groups of rocker arms 401 and clamp structures 402 respectively, the rocker arms 401 are turned over through the extension and contraction of the hydraulic cylinders 405, when the hydraulic cylinders 405 are contracted, the rocker arms 401 are turned over outward, the clamps 402 are separated from the lock shafts 501, on the contrary, when the hydraulic cylinders 405 are extended, the rocker arms 401 are turned over inward, the clamps 402 are engaged with the lock shafts 501 to complete the fixing, while ensuring stability, the disassembly and assembly steps are optimized to the maximum extent, and the operation efficiency is improved, and the bottom assembly roller 3 can be directly withdrawn from the inside of the rolling mill 1 after the locking structure is released, the top fixing roller 2 is pushed downward through the screw shaft frame 102 and the limiting partition plate 1021 after the assembly roller is withdrawn, so that the quick disassembly and assembly operation of the two rollers can be realized.

[0025] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A synchronous automatic roll changing device for double rolls in steel rolling production, characterized in that, The device includes a rolling mill (1) and a hydraulic locking frame (4). The rolling mill (1) is equipped with a fixed roll (2) inside and an assembly roll (3) is provided below the fixed roll (2). The hydraulic locking frame (4) is installed on one side of the bottom of the rolling mill (1). The top of the rolling mill (1) is equipped with a screw shaft frame (102), which is connected to the rolling mill (1) by an internal thread. The bottom of the rolling mill (1) is equipped with a horizontal base (101).

2. The automatic synchronous roll changing device for double-roll steel rolling production according to claim 1, characterized in that: A limiting partition (1021) is provided between the fixed roll (2) and the rolling mill (1), and the limiting partition (1021) is connected to the lead screw shaft frame (102) by bolts.

3. The automatic synchronous roll changing device for double-roll steel rolling production according to claim 1, characterized in that: Both ends of the fixed roll (2) and the assembly roll (3) are provided with bearing seats (103), and the fixed roll (2) and the assembly roll (3) are rotatably connected to the bearing seats (103). The bearing seats (103) are connected to the rolling mill (1) through a slot.

4. The automatic synchronous roll changing device for double-roll steel rolling production according to claim 3, characterized in that: The outer side of the bearing housing (103) is provided with a transfer shaft (6) and an independent motor (5), which are respectively installed at both ends of the fixed roll (2) and the assembly roll (3) through flanges.

5. The automatic synchronous roll changing device for double-roll steel rolling production according to claim 4, characterized in that: The hydraulic lock frame (4) includes two sets of rocker arms (401) and clamps (402). The rocker arms (401) and clamps (402) are integrated into one structure. The rocker arms (401) are rotatably connected to the hydraulic lock frame (4). A hydraulic cylinder (405) is provided at the other end of the rocker arms (401). The hydraulic cylinder (405) is connected to the rocker arms (401) through a hinge (403).

6. The automatic synchronous roll changing device for double-roll steel rolling production according to claim 5, characterized in that: A locking bolt (404) is provided between the hydraulic cylinders (405), and the locking bolt (404) is connected to the hydraulic cylinder (405) by a connecting rod. A locking shaft (501) is provided on both sides of the independent motor (5), and the locking shaft (501) is connected to the clamp (402) by a slot.

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