Device for disassembling and assembling upper pressing cylinder of cold-rolling mill

Abstract

The device comprises a top plate, supporting columns are installed below the four corners of the top plate, pulleys are installed at the bottoms of the supporting columns, a lead screw lifting mechanism is installed on the top plate, and the telescopic end of the lead screw lifting mechanism downwards penetrates through the top plate to stretch out to form a stretching end. A horizontal fixing plate is installed at the extending end and detachably connected with the cold-rolling mill upper pressing cylinder. The device is reasonable in design, when the upper pressing cylinder is disassembled, the device is hoisted to a rail below a body, the body is pushed to the position above the upper pressing cylinder, the fixing plate is lowered to the position above the upper pressing cylinder through the lead screw lifting mechanism, then the fixing plate and the upper pressing cylinder are locked through matching of the pull rod and the nut, and finally the fixing plate is lifted and moved out of the device, so that disassembly and transportation are achieved. And specialized maintenance work is facilitated.

Description

Technical Field

[0001] The utility model relates to a disassembly and assembly device for a pressing cylinder of a cold rolling mill. Background Art

[0002] The pressing cylinder of the rolling mill is the core device of the rolling mill. The quality of the strip is determined by its performance. The existing cold rolling mill is generally equipped with multiple sets of pressing cylinders. When performing maintenance work on the pressing cylinders, the pressing cylinders need to be disassembled and transported outside the rolling body. Since there is no lifting equipment inside the rolling mill, it is difficult to disassemble and move, resulting in maintenance difficulties. Summary of the invention

[0003] In view of this, the purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a cold rolling mill press cylinder disassembly device.

[0004] The present invention is implemented by the following scheme: a cold rolling mill pressure cylinder disassembly and assembly device: including a top plate, support columns are installed under the four corners of the top plate, pulleys are installed at the bottom of the support columns, a screw lifting mechanism is installed on the top plate, the telescopic end of the screw lifting mechanism extends downward through the top plate to form an extended end, a horizontal fixed plate is installed on the extended end, and the fixed plate is detachably connected to the cold rolling mill pressure cylinder.

[0005] Furthermore, the screw lifting mechanism includes a base, a transmission box is installed on the base, a vertical lifting screw driven by a worm gear mechanism is rotatably connected in the transmission box, both ends of the lifting screw extend through the transmission box, the lower extending end of the lifting screw extends through the base and the top plate, and the lower extending end of the lifting screw is connected to the fixed plate.

[0006] Furthermore, the worm gear mechanism includes a worm connected to the transmission box for horizontal rotation and a worm wheel meshing with the worm, a screw nut cooperating with a lifting screw is installed in the worm wheel, and a driving mechanism for driving the worm to rotate is installed on the top plate.

[0007] Furthermore, one end of the worm extends out of the transmission box, and the driving mechanism includes a transmission rod horizontally connected to the top plate, one end of the transmission rod is connected to the protruding end of the worm via a coupling, and a rocker is installed on the other end, the rocker is perpendicular to the transmission rod, and a handle is installed on the end of the rocker.

[0008] Furthermore, the support columns and the top plate are reinforced by connecting ribs.

[0009] Furthermore, a rotating shaft is installed on the outer side of the bottom of the support column, a pulley is installed on the outer end of the rotating shaft via a bearing, and a limiting ring shoulder is provided on the outer periphery of the pulley.

[0010] Furthermore, a positioning cover plate is screwed on the telescopic end of the screw lifting mechanism, and the positioning cover plate includes a shaft end sleeve, one end of the shaft end sleeve is closed, the telescopic end of the screw lifting mechanism is sleeved in the open end of the shaft end sleeve, the telescopic end of the screw lifting mechanism and the closed end surface of the shaft end sleeve are fixed by bolts, the outer periphery of the closed end of the shaft end sleeve extends outward to form an extension cover plate, and the fixing plate is sleeved on the telescopic end of the screw lifting mechanism and abuts and screwed to the upper end surface of the extension cover plate.

[0011] Furthermore, a plurality of clearance installation holes are opened on the outer circumference of the fixing plate, and a pull rod is connected in the clearance installation hole, and the end of the pull rod is connected to the cold rolling mill pressing cylinder through a nut.

[0012] Compared with the prior art, the present invention has the following beneficial effects: reasonable design. When disassembling the pressing cylinder, the device is hoisted to the track below the main body, pushed into the main body to above the pressing cylinder, and the fixed plate is lowered to above the pressing cylinder through the screw lifting mechanism. Then, the fixed plate and the pressing cylinder are locked by the pull rod and the nut. Finally, the fixed plate is lifted and removed from the device, so that disassembly and transportation can be realized, which facilitates professional maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a side view schematic diagram of the structure of the utility model;

[0015] Figure 3 It is a top view schematic diagram of the structure of the utility model;

[0016] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0017] In the figure: 1-top plate; 2-support column; 3-pulley; 4-screw lifting mechanism; 5-fixed plate; 6-base; 7-transmission box; 8-lifting screw; 9-worm; 10-transmission rod; 11-rocker; 12-swivel seat; 13-handle; 14-connecting ribs; 15-rotating shaft; 16-bearing; 17-limiting ring shoulder; 18-positioning cover plate; 19-shaft end sleeve; 20-extension cover plate; 21-make way installation hole; 22-pull rod; 23-nut; 24-cold rolling mill pressure cylinder; 25-track. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0020] 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, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] like Figure 1-4 As shown, a cold rolling mill press cylinder disassembly and assembly device includes a top plate 1, support columns 2 are installed under the four corners of the top plate, pulleys 3 are installed at the bottom of the support columns, a screw lifting mechanism 4 is installed on the top plate, the telescopic end of the screw lifting mechanism extends downward through the top plate to form an extended end, a horizontal fixed plate 5 is installed on the extended end, and the fixed plate is detachably connected to the cold rolling mill press cylinder 24. When in use, the device is hoisted onto the track of the rolling mill body, and the device is pushed into the rolling mill body to above the press cylinder by the pulley, and then the fixed plate is lowered by the screw lifting mechanism to fix the fixed plate and the cold rolling mill press cylinder. Then the fixed plate is lifted and finally the press cylinder is removed.

[0022] In this embodiment, for the sake of reasonable design, the screw lifting mechanism includes a base 6, on which is installed a transmission box 7, in which a vertical lifting screw 8 driven by a worm gear mechanism is rotatably connected, and both ends of the lifting screw extend through the transmission box, and the lower protruding end of the lifting screw extends through the base and the top plate, and the lower protruding end of the lifting screw is connected to the fixed plate. When in use, the lifting screw is driven up and down by the worm gear mechanism, and at the same time, an auxiliary sliding rod connected to the fixed plate can be slidably connected to the top plate to assist the sliding of the fixed plate. Since it is not the invention point of the present device, it will not be described in detail.

[0023] In this embodiment, the worm gear mechanism includes a worm 9 horizontally connected to the transmission box and a worm wheel meshing with the worm. A screw nut cooperating with the lifting screw is installed in the middle of the worm wheel. A driving mechanism for driving the worm to rotate is installed on the top plate. When in use, the rotation of the worm drives the rotation of the worm wheel, and then drives the screw nut to rotate, driving the lifting screw to move up and down.

[0024] In this embodiment, in order to realize the rotation of the worm, one end of the worm extends out of the transmission box, and the driving mechanism includes a transmission rod 10 horizontally connected to the top plate, one end of the transmission rod is connected to the protruding end of the worm through a coupling, and a rocker 11 is installed on the other end. The rocker is perpendicular to the transmission rod, and a plurality of rotating seats 12 are arranged on the top plate corresponding to the transmission. The transmission rod is rotatably connected to the rotating seat, and a handle 13 is installed on the end of the rocker. The handle drives the rocker to rotate around the transmission rod, thereby driving the worm to rotate, thereby realizing the driving of the worm gear mechanism.

[0025] In this embodiment, in order to strengthen the overall structure, the support columns and the top plate are reinforced by connecting ribs 14 .

[0026] In this embodiment, in order to realize the installation of the pulley, a rotating shaft 15 is installed on the outer side of the bottom of the support column, and the pulley is installed on the outer end of the rotating shaft through a bearing 16. A limiting ring shoulder 17 is provided on the outer periphery of the pulley. The limiting ring shoulder is used to limit the track of the rolling mill body to prevent the pulley from falling out.

[0027] In this embodiment, in order to realize the connection between the fixed plate and the telescopic end of the screw lifting mechanism, a positioning cover plate 18 is screwed on the telescopic end of the screw lifting mechanism, and the positioning cover plate includes a shaft end sleeve 19, one end of the shaft end sleeve is closed, and the telescopic end of the screw lifting mechanism is sleeved in the open end of the shaft end sleeve, and the telescopic end of the screw lifting mechanism is fixed to the closed end surface of the shaft end sleeve by bolts, and the outer periphery of the closed end of the shaft end sleeve extends outward to form an extension cover plate 20, and the fixed plate is sleeved on the telescopic end of the screw lifting mechanism and is screwed to the upper end surface of the extension cover plate.

[0028] In this embodiment, in order to facilitate the installation of the tie rod, a plurality of clearance installation holes 21 are opened on the outer periphery of the fixing plate, and a tie rod 22 is connected in the clearance installation hole. The end of the tie rod is connected to the cold rolling mill pressure cylinder through a nut 23.

[0029] In this embodiment, the design is reasonable. When disassembling the pressing cylinder, the device is hoisted to the track below the main body, pushed into the main body to above the pressing cylinder, and the fixed plate is lowered to above the pressing cylinder through the screw lifting mechanism. Then, the fixed plate and the pressing cylinder are locked by the pull rod and the nut. Finally, the fixed plate is lifted and removed from the device, so that disassembly and transportation are realized, which is convenient for professional maintenance work.

[0030] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values ​​to be exhaustive, the utility model discloses only some numerical values ​​to illustrate the technical solution of the utility model, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the utility model.

[0031] If the words "first", "second" and so on are used in this article to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above words have no special meaning.

[0032] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0033] In addition, the orientations or positional relationships indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" used in any of the technical solutions disclosed in the above-mentioned utility model are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this patent, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent. Unless otherwise stated, the terms used to indicate shapes used in any of the technical solutions disclosed in the above-mentioned utility model include shapes that are approximate, similar or close to them.

[0034] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A cold rolling mill press cylinder disassembly and assembly device, characterized in that: It includes a top plate, support columns are installed under the four corners of the top plate, pulleys are installed at the bottom of the support columns, a screw lifting mechanism is installed on the top plate, the telescopic end of the screw lifting mechanism extends downward through the top plate to form an extended end, a horizontal fixed plate is installed on the extended end, and the fixed plate is detachably connected to the cold rolling mill pressure cylinder; A positioning cover plate is screwed on the telescopic end of the screw lifting mechanism, and the positioning cover plate includes a shaft end sleeve, one end of the shaft end sleeve is closed, the telescopic end of the screw lifting mechanism is sleeved in the open end of the shaft end sleeve, the telescopic end of the screw lifting mechanism and the closed end surface of the shaft end sleeve are fixed by bolts, the outer periphery of the closed end of the shaft end sleeve extends outward to form an extension cover plate, and the fixing plate is sleeved on the telescopic end of the screw lifting mechanism and abuts against and screwed on the upper end surface of the extension cover plate; A plurality of clearance installation holes are provided on the outer circumference of the fixing plate, and a pull rod is connected in the clearance installation hole. The end of the pull rod is connected to the cold rolling machine pressing cylinder through a nut.

2. The cold rolling mill press cylinder disassembly and assembly device according to claim 1, characterized in that; The screw lifting mechanism includes a base, a transmission box is installed on the base, a vertical lifting screw driven by a worm gear mechanism is rotatably connected in the transmission box, two ends of the lifting screw extend through the transmission box, the lower extending end of the lifting screw extends through the base and the top plate, and the lower extending end of the lifting screw is connected to the fixed plate.

3. The cold rolling mill press cylinder disassembly and assembly device according to claim 2, characterized in that; The worm gear mechanism includes a worm connected to the transmission box for horizontal rotation and a worm wheel meshing with the worm, a screw nut matched with a lifting screw is installed in the worm wheel, and a driving mechanism for driving the worm to rotate is installed on the top plate.

4. The cold rolling mill press cylinder disassembly and assembly device according to claim 3, characterized in that; One end of the worm extends out of the transmission box, and the driving mechanism includes a transmission rod horizontally connected to the top plate. One end of the transmission rod is connected to the protruding end of the worm via a coupling, and a rocker is installed on the other end. The rocker is perpendicular to the transmission rod, and a handle is installed on the end of the rocker.

5. The cold rolling mill press cylinder disassembly and assembly device according to claim 1, characterized in that; The support column and the top plate are reinforced by connecting ribs.

6. The cold rolling mill press cylinder disassembly and assembly device according to claim 1, characterized in that; A rotating shaft is installed on the outer side of the bottom of the support column, a pulley is installed on the outer end of the rotating shaft via a bearing, and a limiting ring shoulder is arranged on the outer periphery of the pulley.

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