Rolling force cylinder replacing device of temper mill

Abstract

The temper mill rolling force cylinder replacing device comprises a base, a support is arranged on the base, a screw jack is arranged on the support, a top plate is arranged at the top end of the screw jack, a plurality of positioning pins are arranged at the top of the top plate, a plurality of guide sleeves are arranged on the support, guide rods are arranged in the sleeves, and the guide rods are arranged on the guide sleeves. The tops of the guide rods are fixed to the lower surface of the top plate. The screw jack is arranged on the base through the support, and the top plate is arranged on the screw jack, so that the top plate can be located under the rolling force cylinder and abuts against the bottom end of the rolling force cylinder to support the rolling force cylinder, and the rolling force cylinder can be disassembled or assembled conveniently. During disassembly, a peripheral guard plate and a transverse connecting beam of the temper mill do not need to be disassembled, convenience and rapidness are achieved, and time and labor are saved; the structure is simple and the use mode is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of rolling mill equipment and relates to a rolling cylinder replacement device for a leveling mill. Background Art

[0002] At present, the production of plates and coils in the metallurgical industry is mainly carried out by rolling mills to achieve plate and coil thickness control, such as hot rolling four-roll rolling mills, cold rolling six-roll rolling mills, finishing line four-roll skin pass mills and galvanizing line four-roll skin pass mills. According to the installation position of the rolling force cylinder, it can be divided into two structural forms: downward pressure type (rolling force cylinder installed on the top of the arch) and upper top type (rolling force cylinder installed at the bottom of the arch).

[0003] The rolling force cylinder is the main component of the skin pass mill. It determines the stable output of rolling force and elongation. It has the characteristics of high precision, fast response and dynamic compensation. According to actual production experience, after 5 years of continuous use, the rolling force cylinder will cause pressure release and reduced response sensitivity due to internal seal wear, causing defects such as chatter marks, wave shapes, and uneven thickness of the coil.

[0004] For the downward pressure leveling machine, due to the small space, replacing the rolling force cylinder requires dismantling the entire outer protective plate and transverse connecting beam, and then using the gap in the frame to carry out the lifting operation, which is difficult, time-consuming, labor-intensive and high-risk. Utility Model Content

[0005] The utility model aims to provide a quick, convenient, time-saving and labor-saving rolling cylinder replacement device for a leveler in view of the problem that the leveler rolling cylinder in the background technology is time-consuming and labor-intensive to disassemble and replace.

[0006] To this end, the utility model adopts the following technical solutions:

[0007] A device for replacing a rolling cylinder of a leveling machine comprises a base, a bracket is provided on the base, a screw jack is provided on the bracket, a top plate is provided at the top of the screw jack, a plurality of positioning pins are provided at the top of the top plate, a plurality of guide sleeves are provided on the bracket, guide rods are provided in the sleeves, and the top of the guide rods is fixed to the lower surface of the top plate.

[0008] Furthermore, the screw jack is arranged vertically.

[0009] Furthermore, the screw jack is provided with a hand wheel.

[0010] Furthermore, the guide sleeve is arranged vertically.

[0011] Furthermore, the top plate is horizontally arranged and has a circular structure.

[0012] Furthermore, a slot is provided on the base, and a counterweight block is provided in the slot.

[0013] Furthermore, a running wheel is provided at the bottom of the base, and a handle for pushing the base to move is provided at one side of the base.

[0014] The beneficial effects of the utility model are: a screw jack is arranged on the base through a bracket, and a top plate is arranged on the screw jack, so that the top plate can be located directly below the rolling force cylinder and abut against the bottom end of the rolling force cylinder to provide support for the rolling force cylinder, so as to facilitate the disassembly or installation of the rolling force cylinder. During disassembly, there is no need to disassemble the outer protective plate and the transverse connecting beam of the leveling machine, which is convenient, fast, time-saving and labor-saving; the structure is simple and the method of use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] In the figure, 1-base, 2-bracket, 3-screw jack, 4-top plate, 5-locating pin, 6-guide sleeve, 7-guide rod, 8-slot, 9-counterweight, 10-travel wheel, 11-handle, 12-handwheel. DETAILED DESCRIPTION

[0017] The utility model is described in detail below with reference to the accompanying drawings:

[0018] like Figure 1 As shown, a rolling cylinder replacement device for a leveling mill comprises a base 1, a bracket 2 is arranged on the base 1, the bracket 2 is located at the edge of the base 1, so that the bracket 2 can be extended directly below the rolling cylinder of the downward pressure rolling mill, a vertically arranged screw jack 3 is arranged on the bracket 2, the screw jack 3 adopts the existing conventional screw jack, and the lifting height can be accurately controlled, and a horizontally arranged top plate 4 is arranged on the top of the screw jack 3, and the top plate 4 is a circular structure corresponding to the bottom end of the rolling cylinder, and the top plate 4 is used to support the rolling cylinder, and with the rise and fall of the screw jack 3, the rolling cylinder is moved downward. The goods move upward, a plurality of locating pins 5 are provided on the top of the top plate 4, and the locating pins 5 correspond to the bolt head grooves at the bottom end of the rolling force cylinder. When in use, the locating pins 5 can be inserted into the bolt head grooves at the bottom end of the rolling force cylinder to keep the rolling force cylinder stable on the top plate 4. In order to keep the top plate 4 stable when moving up and down, a plurality of vertically arranged guide sleeves 6 are provided on the bracket 2, and a guide rod 7 is provided in the guide sleeve 6. The length of the guide rod 7 is greater than the length of the guide sleeve 6, and the guide rod 7 can move up and down in the vertical direction. The top of the guide rod 7 is fixed to the lower surface of the top plate 4.

[0019] In order to keep the base 1 stable when supporting the rolling force cylinder, a slot 8 is provided on the base 1, and a counterweight block 9 is provided in the slot 8. The counterweight block 9 can ensure that the base 1 and the bracket 2 remain stable when supporting the rolling force cylinder, and accidents such as rollover will not occur.

[0020] In order to facilitate the movement of the base 1, a walking wheel 10 is provided at the bottom of the base 1, and a handle 11 for pushing the base 1 to move is provided on one side of the base 1. At the same time, a hand wheel 12 is provided on the screw jack 3 for easy use.

[0021] The usage of the utility model is as follows:

[0022] When the rolling force cylinder needs to be disassembled, first remove the rolling roller of the downward pressure leveling mill, move the base 1 so that the top plate 4 is located directly below the rolling force cylinder, and then turn the handwheel 12 to make the screw jack 3 drive the top plate 4 to rise. When the top plate 4 is close to the bottom end of the rolling force cylinder, the base 1 is moved to align the positioning pin 5 with the bolt head groove at the bottom end of the rolling force cylinder, and the top plate 4 is continued to be moved upward so that the top plate 4 is against the bottom end of the rolling force cylinder. Then the fixing bolts between the rolling force cylinder and the leveling mill arch can be removed, and the top plate 4 is removed and moved downward to lower the height of the rolling force cylinder. Then the base 1 can be pushed slowly by the handle 11 to make the rolling force cylinder leave the rolling mill, completing the disassembly of the rolling force cylinder, and finally the workshop crane can be used to lift it away.

[0023] When installing the rolling force cylinder, the workshop crane can be used to lift the rolling force cylinder and place it on the top plate 4. When placing it, the bolt head groove at the bottom of the rolling force cylinder is aligned with the positioning pin 5. Then the base 1 can be slowly moved to move the rolling force cylinder to the corresponding position of the leveling machine arch. Then the top plate 4 is raised by the screw jack 3 to raise the rolling force cylinder. When the top of the rolling force cylinder is against the corresponding position of the leveling machine arch, the fixing bolts are installed to complete the installation of the rolling force cylinder. Finally, the height of the top plate 4 is lowered so that the positioning pin 5 can be removed from the bolt head groove at the bottom.

[0024] The utility model is simple and convenient to use. When replacing the rolling force cylinder, there is no need to disassemble the outer protective plate and the transverse connecting beam. The utility model is suitable for a downward pressure leveling machine, which saves time and labor.

Claims

1. A rolling cylinder replacement device for a skin-pass mill, characterized in that: The invention comprises a base (1), wherein a bracket (2) is provided on the base (1), a screw jack (3) is provided on the bracket (2), a top plate (4) is provided at the top of the screw jack (3), a plurality of positioning pins (5) are provided at the top of the top plate (4), a plurality of guide sleeves (6) are provided on the bracket (2), a guide rod (7) is provided inside the guide sleeve (6), and the top of the guide rod (7) is fixed to the lower surface of the top plate (4).

2. A rolling cylinder replacement device for a skin-pass mill according to claim 1, characterized in that: The screw jack (3) is arranged vertically.

3. The rolling cylinder replacement device of a skin-pass mill according to claim 1, characterized in that: The screw jack (3) is provided with a hand wheel (12).

4. The rolling cylinder replacement device of a skin-pass mill according to claim 1, characterized in that: The top plate (4) is arranged horizontally and has a circular structure.

5. The rolling cylinder replacement device of a skin-pass mill according to claim 1, characterized in that: The guide sleeve (6) is arranged vertically.

6. The rolling cylinder replacement device of a skin-pass mill according to claim 1, characterized in that: The base (1) is provided with a slot (8), and a counterweight (9) is provided in the slot (8).

7. The rolling cylinder replacement device of a skin-pass mill according to claim 1, characterized in that: The bottom of the base (1) is provided with walking wheels (10), and one side of the base (1) is provided with a handle (11) for pushing the base (1) to move.

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