Roller assembly of cold rolling mill

Abstract

The utility model relates to the field of steel bar cold rolling mills, in particular to a roller assembly of a cold rolling mill, which comprises a mounting base body, a roller seat, a roller component and a screw-down mechanism, a power shaft is arranged on the mounting base body, the roller seat is connected with the power shaft and can rotate relative to the power shaft, and the roller component is arranged on the roller seat. A roller shaft of the roller assembly is parallel to the power shaft and is in transmission fit with the power shaft, the roller is connected with the roller shaft, the power shaft drives the roller shaft to rotate so as to drive the roller to rotate, and when the roller assembly is used for a Y-shaped cold rolling mill or other forms of cold rolling mills, the roller seat rotates around the power shaft. Compared with a roller assembly in the prior art, not only can the cold rolling gap be adjusted in a larger range, but also the transmission stability between the power shaft and the roller assembly can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel cold rolling mill, concretely relates to a roller assembly of cold rolling mill. BACKGROUND

[0002] The existing steel cold rolling mill, especially Y type cold rolling mill, in order to be able to adjust the size of cold rolling gap, the power shaft and the roller shaft in roller assembly are driven and cooperated through gear with long teeth, under the premise of maintaining two gear driving cooperation, the position of roller shaft is adjusted along the radial direction of power shaft to adjust the spacing of each roller to adjust the size of cold rolling gap. The adjustment of roller shaft moving along the radial direction of power shaft will cause the engagement degree of gear on power shaft and gear on roller shaft to change, when roller shaft is far away from power shaft, the engagement degree of two gears is small, which is easy to cause gear damage, transmission relationship deterioration or two gears completely separate, which limits the adjustment range of cold rolling gap, and in order to adapt to the adjustment range of cold rolling gap, gear, power shaft and power equipment connected with power shaft need larger volume, which causes cold rolling mill to need larger installation space. SUMMARY

[0003] The utility model provides a kind of roller assembly of cold rolling mill, the position of roller is adjusted by the way that roller rotates around power shaft, realize the adjustment of cold rolling gap, in the process that roller rotates around power shaft, power shaft and roller shaft can always stably drive.

[0004] To solve the above technical problem, the technical scheme adopted by the utility model is as follows: a kind of roller assembly of cold rolling mill, including installation base body, roller seat, roller assembly and press-down mechanism, power shaft is provided on installation base body, transmission part is provided on power shaft, roller seat is connected with power shaft and rotates around power shaft, press-down mechanism is provided on installation base body, the action part of press-down mechanism cooperates with roller seat and drives roller seat to rotate around power shaft, roller assembly includes roller shaft and roller, roller shaft is provided on roller seat, roller shaft is parallel with power shaft and is driven and cooperated with power shaft, roller is provided on roller shaft.Roller seat drives roller assembly to rotate around power shaft when rotating around power shaft, the position of roller changes to cause the change of roller gap, roller shaft is parallel with power shaft and is driven and cooperated, during the rotation of roller seat, roller shaft and power shaft can maintain stable transmission relationship, when being used in cold rolling mill, roller assembly not only can improve the adjustable range of cold rolling gap, but also can improve the structural stability of cold rolling mill.

[0005] As optional scheme, roller shaft and power shaft are driven and cooperated by the way of gear transmission. Gear on roller shaft and gear on power shaft are driven and engaged and rotate around power shaft during the rotation of roller seat around power shaft.

[0006] As an optional scheme, the matching part of the roll seat and the screwdown mechanism is respectively on both sides of the power shaft, the screwdown assembly is a turbine screw rod driving assembly or a telescopic driving assembly, and the action part of the screwdown mechanism is in abutting engagement with the roll seat.

[0007] As an optional scheme, the action part of the screwdown mechanism is provided with a fine adjustment nut, and the fine adjustment nut is in abutting engagement with the roll seat.

[0008] As an optional scheme, the transmission member comprises 1-2 bevel gears.

[0009] As an optional scheme, the mounting base is provided with a mounting seat, the mounting seat is a U-shaped seat, and the roll seat passes through the U-shaped cavity of the U-shaped seat.

[0010] As an optional scheme, the roll seat is provided with a roll groove, the roll shaft passes through the roll groove, the roll shaft is provided with a gear adapted to transmission cooperation with the power shaft outside the roll groove, the roll is arranged in the roll groove and exposes the roll groove outside.

[0011] As an optional scheme, the power shaft is provided with a shaft coupling

[0012] Compared with the prior art, the roll assembly of the utility model has the beneficial effects that: the roll assembly of the utility model adjusts the position of the roll by the mode that the roll seat drives the roll assembly to rotate around the power shaft, realizes the purpose of adjusting the cold rolling gap of the cold rolling mill, compared with the roll assembly of the prior art, can increase the adjustment range of the cold rolling gap, and the power shaft and the roll assembly can maintain a stable transmission relationship during the process of adjusting the cold rolling gap; and the roll assembly of the utility model does not cause radial deviation of the power shaft when adjusting the cold rolling gap, and the driving mechanism of the cold rolling mill does not need to adapt to the deviation of the power shaft, so that a common small driving assembly can be adopted, thereby the volume and space occupation of the cold rolling mill can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0014] Fig. 1 It is a structural schematic view of the roll assembly.

[0015] Fig. 2 It is a structural schematic view of the roll assembly when omitting the mounting base.

[0016] Fig. 3This is a schematic diagram of a roll assembly used in a Y-type cold rolling mill.

[0017] In the diagram: 1. Mounting base, 2. Roll holder, 3. Pressing mechanism, 4. Power shaft, 5. Transmission component, 6. Roll shaft, 7. Roll, 8. Coupling. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0019] like Figs. 1-3 As shown, a roll assembly of a cold rolling mill includes a mounting base 1, a roll seat 2, a roll assembly, and a pressing mechanism 3. The mounting base 1 can be the body of the cold rolling mill, or a plate-shaped or block-shaped structure that can be mounted on the body of the cold rolling mill. A power shaft 4 is provided on the mounting base 1. The power shaft 4 is mounted on the mounting base 1 through bearing components. The power shaft 4 can rotate relative to the mounting base 1. A transmission component 5 is provided on the power shaft 4. The transmission component 5 is used to drive and cooperate with the transmission components 5 of other roll assemblies of the cold rolling mill, thereby realizing transmission between the roll assemblies of the cold rolling mill. The power shaft 4 is driven to rotate by the drive mechanism of the cold rolling mill, or by the power shaft 4 of other roll assemblies in the cold rolling mill. The roll seat 2 is connected to the power shaft 4 through bearing components. The roll seat 2 can rotate around the power shaft 4. Roll assemblies are provided on the roll seat 2. The rotation of the roll seat 2 around the power shaft 4 can drive the roll assembly to rotate around the power shaft 4. The roll rotates around the power shaft 4 and adjusts the cold rolling gap of the cold rolling mill.

[0020] The roll assembly includes a roll shaft 6 and a roll 7. The roll shaft 6 is mounted on a roll holder 2 and connected to the roll holder 2 via bearings. The roll shaft 6 can rotate relative to the roll holder 2. The roll shaft 6 is parallel to a power shaft 4 and is driven by the power shaft 4. The roll 7 is connected to the roll shaft 6, and the power shaft 4 drives the roll 7 to rotate by rotating the roll shaft 6. When the roll holder 2 rotates, the roll shaft 6 and the roll rotate relative to the power shaft 4, and the roll shaft 6 and the power shaft 4 are always driven by the power shaft 4. Preferably, both the roll shaft 6 and the power shaft 4 are equipped with gears, and the roll shaft 6 and the power shaft 4 are driven by gears.

[0021] The pressing mechanism 3 is arranged on the mounting base 1, the action part of the pressing mechanism 3 is matched with the roll stand 2, the roll stand 2 is driven by the pressing mechanism 3 to rotate around the power shaft 4, so that the position of the roll is adjusted. Figs. 1-3 When the roll stand 2 rotates around the power shaft 4 to move the roll assembly away from the mounting base, the cold rolling gap of the cold rolling mill is enlarged, and when the roll stand 2 is supported by the pressing mechanism 3 to move the roll assembly to the mounting base, the cold rolling gap of the cold rolling mill is reduced.

[0022] As an optional embodiment, the action part of the pressing mechanism 3 is provided with a fine adjustment nut, the action part of the pressing mechanism 3 is matched with the roll stand 2 through the fine adjustment nut, and the position of the fine adjustment nut can be adjusted by rotating the fine adjustment nut, so that the action position of the pressing mechanism 3 is adjusted, the actions of the roll assemblies of the cold rolling mill can be matched through the fine adjustment nut, and the cold rolling precision is improved.

[0023] The cold rolling mill with the roll assembly of the utility model, when adjusting the cold rolling gap, the roll stand 2 of each roll assembly rotates around the power shaft 4, and the roll assembly on each roll stand 2 also rotates around the power shaft 4, so that the size of the cold rolling gap is adjusted, and because the roll assembly and the power shaft 4 are driven by the gear, the gear on the roll shaft 6 rotates around the power shaft 4 while being stably meshed with the gear on the power shaft 4 during the rotation of the roll stand 2, compared with the same specification cold rolling mill in the prior art, the adjustable range of the cold rolling gap is larger, the damage probability of the components is lower, and the transmission effect is more stable. The power shaft 4 and the gear of the roll assembly do not need to be very large, and the power shaft 4 does not need to move radially when adjusting the cold rolling gap, so that the driving mechanism of the cold rolling mill can adopt a common driving assembly, and the power shaft 4 is directly driven to rotate, thereby reducing the overall space occupation of the cold rolling mill.

[0024] In order to improve the structural stability of the roll assembly, the mounting base 1 is provided with a mounting seat, the mounting seat is a U-shaped seat, the power shaft 4 passes through the U-shaped cavity of the U-shaped seat and is arranged, the power shaft 4 is connected with the mounting base 1 and / or the mounting seat through a bearing, the roll stand 2 is arranged in the U-shaped cavity and is connected with the power shaft 4, so that the displacement of the roll stand 2 along the power shaft 4 is avoided; the roll stand 2 is provided with a roll groove, the roll shaft 6 passes through the roll groove and is arranged, the roll 7 is arranged in the roll groove and is connected with the roll shaft 6, the outer edge of the roll 7 is exposed from the roll groove, and the gear on the roll shaft 6 for transmission cooperation with the power shaft 4 is located outside the roll groove.

[0025] The roll assembly of the utility model is suitable for a Y-shaped cold rolling mill, please refer to Fig. 3The Y-shaped cold rolling mill comprises three roller assemblies, which are referred to as a first roller assembly and two second roller assemblies for convenience, are distributed in a circumferential direction, and are separated by cold rolling gaps. The power components of the roller assemblies are bevel gears, wherein two bevel gears are arranged on the power shaft 4 of the first roller assembly, one bevel gear is arranged on the power shaft 4 of each of the second roller assemblies, the bevel gears of the second roller assemblies are in transmission engagement with the two bevel gears of the first roller assembly, respectively, a coupling 8 is arranged on the power shaft 4 of the first roller assembly, and the power output part of the driving mechanism of the cold rolling mill is connected to the power shaft 4 of the first roller assembly through the coupling 8. The driving mechanism drives the power shaft 4 of the first roller assembly to rotate, drives the power shaft 4 of each of the second roller assemblies to rotate, and further drives all the roller assemblies to rotate.

[0026] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] The above description is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the application concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be included in the protection scope of the present application.

Claims

1. A roll assembly for a cold rolling mill, characterized by: The rolling mill comprises a mounting base (1), a roller seat (2), a roller assembly and a press-down mechanism (3), the mounting base (1) is provided with a power shaft (4), the power shaft (4) is provided with a transmission part (5), the roller seat (2) is connected with the power shaft (4) and rotates around the power shaft (4), the press-down mechanism (3) is arranged on the mounting base (1), the action part of the press-down mechanism (3) cooperates with the roller seat (2) and drives the roller seat (2) to rotate around the power shaft (4), the roller assembly comprises a roller shaft (6) and a roller (7), the roller shaft (6) is arranged on the roller seat (2), the roller shaft (6) is parallel to the power shaft (4) and cooperates with the power shaft (4) in transmission, and the roller shaft (6) is provided with the roller (7).

2. A roll assembly for a cold rolling mill as claimed in claim 1, wherein: The roller shaft (6) and the power shaft (4) are in transmission cooperation through gear transmission.

3. A roll assembly for a cold rolling mill as claimed in claim 2, wherein: The cooperation part of the roller seat (2) and the press-down mechanism (3) and the roller assembly are respectively arranged on the two sides of the power shaft (4), the press-down assembly is a turbine screw rod driving assembly or a telescopic driving assembly, and the action part of the press-down mechanism (3) is in abutting cooperation with the roller seat (2).

4. A roll assembly for a cold rolling mill as claimed in claim 3, wherein: The action part of the press-down mechanism (3) is provided with a fine adjustment nut, and the fine adjustment nut is in abutting cooperation with the roller seat (2).

5. A roll assembly for a cold rolling mill as claimed in claim 3, wherein: The transmission part (5) comprises one or two bevel gears.

6. A roll assembly for a cold rolling mill as claimed in claim 5, wherein: The mounting base (1) is provided with a mounting seat, the mounting seat is a U-shaped seat, and the roller seat (2) passes through the U-shaped cavity of the U-shaped seat.

7. A roll assembly for a cold rolling mill as claimed in claim 5, wherein: The roller seat (2) is provided with a roller groove, the roller shaft (6) passes through the roller groove, the roller shaft (6) is provided with a gear suitable for transmission cooperation with the power shaft (4) outside the roller groove, and the roller is arranged in the roller groove and exposes the roller groove outside.

8. A roll assembly for a cold rolling mill as defined in claim 1, characterized in that: The power shaft (4) is provided with a shaft coupling (8).

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