Y-shaped cold rolling mill

Abstract

The utility model relates to the technical field of steel bar cold rolling, in particular to a Y-shaped cold rolling mill which comprises a machine body and three roller assemblies distributed in the circumferential direction, each roller assembly comprises a mounting seat, a roller seat and a screw-down mechanism, a rotating shaft is arranged on the mounting seat, the roller seat is arranged on the mounting seat and can rotate around the rotating shaft, and the screw-down mechanism is arranged on the mounting seat. Roller assemblies are arranged on the roller seat and are in transmission fit with the rotating shaft, cold rolling gaps are formed among rollers of the three roller assemblies, the screw-down mechanism drives the roller seat to rotate around the rotating shaft for adjustment, so that the size of the cold rolling gaps can be adjusted, and the roller shaft and the rotating shaft are in stable transmission fit all the time in the rotating process of the roller seat; the three roller assemblies are the first roller assembly and the two second roller assemblies respectively, a rotating shaft of the first roller assembly is in transmission fit with rotating shafts of the two second roller assemblies, the roller assemblies of the three roller assemblies can be driven to rotate by driving the rotating shaft of the first roller assembly, and Y-shaped cold rolling of steel bars is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steel cold rolling technical field, concretely relates to a Y type cold rolling mill. BACKGROUND

[0002] The newly introduced national standard "GB13788-2024 cold rolled ribbed steel" makes significant adjustments to CRB550 grade steel, changes two-face rib to three-face rib, the steel cross section is Y-shaped, and the mechanical properties, process performance, and appearance size technical indicators are also significantly improved, and it is stipulated that it will be compulsorily implemented from September 25, 2023.

[0003] The cold rolling processing of three-face rib steel requires a Y-shaped cold rolling mill, also known as a three-rib cold rolling mill. During the cold rolling process, it is necessary to adjust the opening size between the rollers, and at the same time, the transmission relationship needs to be maintained. The existing three-rib rolling mill uses a method in which the power shaft and the roller shaft are connected through a gear with a long tooth, and under the premise of maintaining the transmission relationship between the two gears, the roller shaft is moved closer to or away from the power shaft to adjust the position of the roller, thereby adjusting the size of the opening. The disadvantages of this method are: 1. The range of opening adjustment is limited, and if the opening is too large, the roller shaft and the power shaft will be too far apart, and the two gears will be disconnected, so that transmission cannot be achieved; 2. When the opening is adjusted to a certain extent, the transmission connection between the roller shaft and the power shaft becomes poor and unstable, and the gears are also prone to damage; 3. In order to ensure that the opening can meet the requirements of the adjustment range, the gears, power shaft and power equipment connected to the power shaft are all large, resulting in a large installation space for the entire device. To solve the above problems, the utility model provides a Y-shaped cold rolling mill. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a Y-shaped cold rolling mill that can drive the roller assembly to rotate around the rotating shaft using a screwdown mechanism, thereby adjusting the size of the cold rolling gap between the rollers, and during the adjustment process, the roller assembly and the rotating shaft can maintain a stable transmission relationship.

[0005] The utility model provides to adopt the technical scheme that a kind of Y type cold rolling mill, including body and three roll assembly, roll assembly includes mounting seat, roll seat and screwdown mechanism, mounting seat is set on body and is provided with rotating shaft on mounting seat, roll seat is set on mounting seat and can rotate around rotating shaft, screwdown mechanism is set on body and drives roll seat to rotate around rotating shaft adjustment, roll seat is provided with roll assembly, roll assembly is transmission cooperation with rotating shaft, three roll assembly is distributed along circumference and forms cold rolling gap between the roll of three roll assemblies, and cold rolling pass is provided with on body corresponding to cold rolling gap place.The rotating shaft as the power transmission shaft of roll assembly, roll seat can rotate around rotating shaft, roll assembly is set on roll seat and transmission cooperation with rotating shaft, rotating shaft can drive roll assembly to rotate, and roll seat rotates around rotating shaft adjustment can adjust cold rolling gap, and during roll seat rotation, roll assembly and rotating shaft always maintain stable transmission relationship, the utility model Y type cold rolling mill can make cold rolling gap adjust in greater range, and adjust the stable transmission between roll assembly and rotating shaft while adjusting cold rolling gap.

[0006] As an optional scheme, the roll assembly includes a roll and a roll shaft, the roll shaft is rotatably arranged on the roll seat, the roll shaft is parallel to the rotating shaft and transmission cooperation with the rotating shaft, and the roll is connected with the roll shaft.

[0007] As an optional scheme, the roll shaft and the rotating shaft are transmission cooperation through gear transmission.

[0008] As an optional scheme, the screwdown mechanism is a turbine screw rod driving assembly or a telescopic driving assembly, the screwdown mechanism and the roll assembly are respectively arranged at two sides of the rotating shaft, and the action part of the screwdown mechanism is in abutting cooperation with the roll seat.

[0009] 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 cooperation with the roll seat. By adjusting the fine adjustment nut, the cooperation effect of the screwdown mechanism and the roll seat can be adjusted, and the accuracy of the position adjustment of the roll by the screwdown mechanism is improved.

[0010] As an optional scheme, the three roll assemblies are a first roll assembly and two second roll assemblies, the rotating shaft of the first roll assembly is provided with a power receiving part, and the rotating shafts of the two second roll assemblies are in transmission cooperation with the rotating shaft of the first roll assembly. The rotating shafts of the two second roll assemblies are in transmission cooperation with the rotating shaft of the first roll assembly, and the stability of transmission is improved.

[0011] As an optional scheme, the rotating shaft of the second roll assembly and the rotating shaft of the first roll assembly are transmission cooperation through bevel gear.

[0012] As an optional scheme, the utility model further includes a driving mechanism, and the power receiving part is connected with the power output part of the driving mechanism.

[0013] As an optional solution, the power output part of the driving mechanism is connected with a transmission shaft through a shaft coupling, the transmission shaft is connected with the rotating shaft of the first roller assembly through a shaft coupling, and the power receiving part is the shaft coupling.

[0014] As an optional solution, a guide pipe is arranged on the machine body corresponding to the cold rolling gap, and a cold rolling channel is arranged in the guide pipe.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the rotating shaft is the power shaft of the roller assembly, when the cold rolling gap is adjusted by the screwdown mechanism, the screwdown mechanism drives the roller seat to rotate around the rotating shaft, and drives the roller assembly to rotate around the rotating shaft, compared with the connection mode of the prior art, the adjustable range of the cold rolling gap is effectively improved, and since the roller seat and the roller assembly rotate around the rotating shaft, a stable transmission relationship can be maintained between the roller assembly and the rotating shaft during rotation, so that the connection effect of various components is not affected by adjusting the cold rolling gap; in addition, since the rotating shaft does not displace radially when the cold rolling gap is adjusted, the driving mechanism can also adopt ordinary driving components, thereby reducing the volume of the overall equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] 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 embodiment 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 for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a structure schematic view of Y type cold rolling mill;

[0018] Figure 2 It is a front view schematic view of Y type cold rolling mill;

[0019] Figure 3 It is a structure schematic view of Y type cold rolling mill omitting driving mechanism;

[0020] Figure 4 It is a structure schematic view of roller assembly;

[0021] In the drawing: 1, machine body, 2, first roller assembly, 21, roller seat, 22, screwdown mechanism, 23, rotating shaft, 24, roller shaft, 25, roller, 3, second roller assembly, 4, driving mechanism. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. 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 those skilled in the art without creative effort fall within the scope of the present application. Embodiments

[0023] Please refer to Figures 1-4 A Y-shaped cold rolling mill comprises a machine body 1 and three roller assemblies, the roller assemblies are arranged on the machine body 1, the three roller assemblies are distributed in a circumferential direction, cold rolling gaps are formed between the rollers 25 of the three roller assemblies, guide pipes are arranged on the machine body 1 corresponding to the cold rolling gaps, cold rolling channels are arranged in the guide pipes, and the cold rolling channels are communicated with the cold rolling gaps.

[0024] The roller assembly comprises a mounting seat, a roller seat 21 and a screwdown mechanism 22. The mounting seat is arranged on the machine body 1, a rotating shaft 23 is arranged on the mounting seat, the rotating shaft 23 is connected with the mounting seat through a bearing, and the rotating shaft 23 can rotate relative to the mounting seat. The roller seat 21 is arranged on the mounting seat, and the roller seat 21 is connected with the mounting seat or the rotating shaft 23 through a bearing. The roller seat 21 can rotate around the rotating shaft 23. The screwdown mechanism 22 is arranged on the machine body 1, the action part of the screwdown mechanism 22 cooperates with the roller seat 21, and the screwdown mechanism 22 can drive the roller seat 21 to rotate around the rotating shaft 23. The roller seat 21 is provided with a roller assembly, the roller assembly comprises a roller 25 and a roller shaft 24, the roller shaft 24 is connected with the roller seat 21 through a bearing, the roller shaft 24 can rotate relative to the roller seat 21, the roller shaft 24 is in transmission cooperation with the rotating shaft 23, the rotation of the rotating shaft 23 can drive the roller shaft 24 to rotate, and then the roller 25 arranged on the roller shaft 24 is driven to rotate.

[0025] When the roller seat 21 rotates around the rotating shaft 23 for adjustment, the roller assembly can be driven to move around the rotating shaft 23, so that the distance between the three rollers 25, that is, the cold rolling gap, can be adjusted. During the rotation of the roller seat 21 around the rotating shaft 23, the roller shaft 24 and the rotating shaft 23 always maintain a transmission relationship.

[0026] The rolling roller shaft 24 of the rolling roller assembly is in transmission cooperation with the rotating shaft 23, the size of the cold rolling gap is adjusted by rotating the rolling roller seat 21 around the rotating shaft 23, the size of the cold rolling gap can be adjusted in a larger range, the stable transmission connection effect between the rolling roller shaft 24 and the rotating shaft 23 can be maintained in the cold rolling gap adjusting process, and the use stability of the device is improved; and since the rotating shaft 23 does not occur radial deviation in the process of adjusting the cold rolling gap, the dynamic driving mechanism 4 of the cold rolling machine does not need to cope with the deviation of the rotating shaft 23, and general power components such as motors can be used, so that the overall size of the device is reduced.

[0027] The mounting seat is preferably a U-shaped seat, the rotating shaft 23 is arranged through the U-shaped cavity of the mounting seat, the rolling roller seat 21 is arranged in the U-shaped cavity of the mounting seat and connected with the rotating shaft 23 through a bearing piece; the rolling roller seat 21 is provided with a rolling roller groove, the rolling roller shaft 24 is arranged through the rolling roller groove and parallel to the rotating shaft 23, the rolling roller is arranged in the rolling roller groove, and the rolling roller is connected with the rolling roller shaft 24 and extends out of the rolling roller groove.

[0028] The rolling roller shaft 24 and the rotating shaft 23 can be in transmission cooperation through gear transmission, when the rolling roller seat 21 rotates around the rotating shaft 23, the rolling roller shaft 24 also rotates relative to the rotating shaft 23, and the gear on the rolling roller shaft 24 rotates around the rotating shaft 23 and is in transmission engagement with the gear on the rotating shaft 23.

[0029] The pressing mechanism 22 can be a turbine screw rod driving assembly or a telescopic driving assembly, the pressing mechanism 22 and the rolling roller assembly are respectively located on the two sides of the rotating shaft 23, the action part of the pressing mechanism 22 is in abutting cooperation with the rolling roller seat 21, when the pressing action is performed, the action part of the pressing mechanism 22 supports the rolling roller seat 21 to rotate the rolling roller seat 21 around the rotating shaft 23, so that the rolling rollers are close to each other. Figures 1-3 When the action part of each pressing mechanism 22 is close to the machine body 1, each rolling roller seat 21 rotates around the rotating shaft 23 to make the cold rolling gap in the maximum state, when the reinforcing steel bar passes through the cold rolling gap and the cold rolling channel, the action part of each pressing mechanism 22 moves to the rolling roller seat 21 and drives the rolling roller seat 21 to rotate around the rotating shaft 23, each rolling roller is close to each other and makes the cold rolling gap smaller, and the rolling rollers rotate in cooperation to realize the cold rolling of the reinforcing steel bar.

[0030] In further embodiments, the action part of the pressing mechanism 22 is provided with a fine adjustment nut, for example, when the pressing mechanism 22 is a turbine screw rod driving assembly, the end of the screw rod is provided with a fine adjustment nut, and when the pressing mechanism 22 is a telescopic driving assembly, the telescopic part of the telescopic driving assembly is provided with a fine adjustment nut. The pressing mechanism 22 is in abutting cooperation with the rolling roller seat 21 through the fine adjustment nut, and rotating the fine adjustment nut can adjust the action position of the action part of the pressing mechanism 22, which is beneficial to improve the adjustment accuracy of the pressing mechanism 22 to the rolling roller seat 21 and the rolling roller.

[0031] The three roller assemblies are a first roller assembly 2 and two second roller assemblies 3, the rotation shafts 23 of the two second roller assemblies 3 are in driving cooperation with the rotation shaft 23 of the first roller assembly 2, preferably, the rotation shaft 23 of the second roller assembly 3 is in driving cooperation with the rotation shaft 23 of the first roller assembly 2 through a bevel gear. The driving mechanism 4 of the Y-shaped cold rolling mill can directly drive the rotation shaft 23 of the first roller assembly 2, and drive the rotation shafts 23 of the two second roller assemblies 3 to rotate through the rotation shaft 23 of the first roller assembly 2, so as to simultaneously drive the three rollers to rotate.

[0032] The rotation shaft 23 of the first roller assembly 2 is provided with a power receiving part adapted to be connected and cooperated with the driving mechanism 4. As a specific example, the power receiving part is a shaft coupling, the power output part of the driving mechanism 4 of the Y-shaped cold rolling mill is connected with a transmission shaft through the shaft coupling, and the transmission shaft is connected with the rotation shaft 23 of the first roller assembly 2 through the shaft coupling.

[0033] In the description of the 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 contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily mean 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.

[0034] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A Y-type cold rolling mill characterized by: The application relates to a cold rolling machine, which comprises a machine body (1) and three roller assemblies, wherein the roller assembly comprises a mounting base, a roller base (21) and a pressing mechanism (22), the mounting base is arranged on the machine body (1), a rotating shaft (23) is arranged on the mounting base, the roller base (21) is arranged on the mounting base and can rotate around the rotating shaft (23), the pressing mechanism (22) is arranged on the machine body (1) and drives the roller base (21) to rotate around the rotating shaft (23) for adjustment, a roller assembly is arranged on the roller base (21) and is in transmission cooperation with the rotating shaft (23), the three roller assemblies are distributed in the circumferential direction and form a cold rolling gap between the rollers of the three roller assemblies, and a cold rolling channel is arranged on the machine body (1) corresponding to the cold rolling gap.

2. A Y-type cold rolling mill according to claim 1, characterized in that: The roller assembly comprises a roller (25) and a roller shaft (24), the roller shaft (24) is rotatably arranged on the roller base (21), the roller shaft (24) is parallel to the rotating shaft and is in transmission cooperation with the rotating shaft, and the roller (25) is connected with the roller shaft (24).

3. A Y-type cold rolling mill according to claim 2, characterized in that: The roller shaft (24) and the rotating shaft (23) are in transmission cooperation through gear transmission.

4. A Y-type cold rolling mill according to claim 2, characterized in that: The pressing mechanism (22) is a turbine screw rod driving assembly or a telescopic driving assembly, the pressing mechanism (22) and the roller assembly are respectively arranged on the two sides of the rotating shaft (23), and the action part of the pressing mechanism (22) is in abutting cooperation with the roller base (21).

5. A Y-type cold rolling mill according to claim 4, characterized in that: The action part of the pressing mechanism (22) is provided with a fine adjustment nut, and the fine adjustment nut is in abutting cooperation with the roller base (21).

6. A Y-type cold rolling mill according to claim 4, characterized in that: The three roller assemblies are a first roller assembly (2) and two second roller assemblies (3), the rotating shaft (23) of the first roller assembly (2) is provided with a power receiving part, and the rotating shaft (23) of the two second roller assemblies (3) is in transmission cooperation with the rotating shaft (23) of the first roller assembly (2).

7. A Y-type cold rolling mill according to claim 6, characterized in that: The rotating shaft (23) of the second roller assembly (3) and the rotating shaft (23) of the first roller assembly (2) are in transmission cooperation through bevel gear transmission.

8. A Y-type cold rolling mill according to claim 7, characterized in that: The application further comprises a driving mechanism (4), and the power receiving part is connected with a power output part of the driving mechanism (4).

9. A Y-type cold rolling mill according to claim 8, characterized in that: The power output part of the driving mechanism (4) is connected with a transmission shaft through a shaft coupling, the transmission shaft is connected with the rotating shaft (23) of the first roller assembly (2) through a shaft coupling, and the power receiving part is a shaft coupling.

10. A Y-type cold rolling mill as claimed in claim 1, characterized in that: A guide pipe is arranged on the machine body (1) corresponding to the cold rolling gap, and the cold rolling channel is arranged in the guide pipe.

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