Rotatable eccentric lifting platform for rolling mill

Abstract

The utility model discloses a rotatable eccentric lifting platform for a rolling mill, and belongs to the technical field of rolling equipment. A rotatable eccentric lifting platform for a rolling mill comprises a lifting platform frame, auxiliary frames, a fixing frame and an eccentric wheel, a locking gear is installed at the upper end of the fixing frame, tooth row frames are installed on the two sides of the lifting platform frame, and a rotating roller is installed between the auxiliary frames. The lifting platform solves the problems that in the actual using process of an existing lifting platform, the lifting mode cannot keep the position stable, long-term work is affected, and safety is poor, the position of the lifting platform frame is kept stable through the fixing frame, a locking gear at the upper end of the fixing frame is limited by a gear row on one side of the auxiliary frame, and the locking gear is not prone to falling off. After the locking gear rotates, the lifting rack is driven to ascend and descend, in the ascending and descending process of the lifting rack, the tooth row frames on the two sides are limited by the positioning sliding grooves, the positions are kept stable, the working quality is improved, long-term working is facilitated, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling equipment, in particular to a rotatable eccentric lifting platform for a rolling mill. Background Art

[0002] During rolling mill production, the finished rolls from one stage must be positioned at a specific angle before they can be processed in the next step. Therefore, specialized equipment is required to adjust the roll position. Due to space limitations within the equipment, this adjustment requires a lifting platform.

[0003] A Chinese patent with the publication number CN207108386U discloses a rotatable eccentric lifting platform, comprising: a rotating mechanism (1): comprising a fixed base (11), and a rotating drive assembly mounted on the base (11); the patent has lifting and rotating functions, and can realize the special conveying requirements of the system in a limited space. At the same time, the lifting process is stable and the position adjustment accuracy is high.

[0004] During actual use, the lifting method of the lifting platform of the above patent cannot maintain a stable position, which affects long-term work and has poor safety. Therefore, it does not meet existing needs. We have proposed a rotatable eccentric lifting platform for a rolling mill. Utility Model Content

[0005] The purpose of the utility model is to provide a rotatable eccentric lifting platform for a rolling mill, which solves the problem that the lifting platform proposed in the above background technology cannot maintain a stable position during actual use, affecting long-term work and poor safety.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotatable eccentric lifting platform for a rolling mill, comprising a lifting platform frame, an auxiliary frame, a fixed frame and an eccentric wheel, the lifting platform frame is arranged inside the auxiliary frame, the fixed frame is arranged between the lifting platform frame and the auxiliary frame, a locking gear is installed on the upper end of the fixed frame, gear racks are installed on both sides of the lifting platform frame, the eccentric wheel is arranged below the auxiliary frame, and a rotating roller is installed between the auxiliary frame and the auxiliary frame.

[0007] Preferably, the gear rack is welded to the lifting platform, and the locking gear is meshed with the gear rack.

[0008] Preferably, both sides of the exterior of the auxiliary frame are welded with a retaining frame, a gear row is provided inside the retaining frame, and the locking gear is meshed and connected with the retaining frame through the gear row.

[0009] Preferably, an integrally formed positioning slot is provided on one side of the auxiliary frame, and the gear rack is embedded in the positioning slot and is slidably connected to the auxiliary frame.

[0010] Preferably, the lower end of the auxiliary frame is rotatably connected to the rotating roller through a bearing, and a movable arm is installed at the lower end of the rotating roller. The upper and lower ends of the movable arm are movably connected to the rotating roller and one end of the eccentric wheel respectively. A servo motor is installed on one side of the eccentric wheel, and the motor shaft of the servo motor is fixedly connected to the eccentric wheel through a coupling.

[0011] Preferably, the fixing frame passes through the auxiliary frame and is slidably connected to the auxiliary frame, and the upper end of the auxiliary frame is rotatably connected to the locking gear through a bearing.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The lifting platform of the utility model is lifted after the rolling mill workpiece is placed, and the eccentric wheel is driven to rotate by the servo motor, and the eccentric wheel drives the movable arm to move, pushing the rotating roller and the auxiliary frame to perform the lifting work. During the lifting process of the auxiliary frame, the position of the lifting platform is kept stable by the fixed frame, and the locking gear at the upper end of the fixed frame is limited by the gear row on one side of the auxiliary frame. After the locking gear rotates, it drives the lifting platform to perform the lifting work. During the lifting process of the lifting platform, the gear row frames on both sides are limited by the positioning slide grooves, so as to maintain a stable position, improve the work quality, facilitate long-term work, and enhance safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric drawing of the front view of the present invention;

[0015] Figure 2 This is an axonometric view of the present invention from above;

[0016] Figure 3 This is the axonometric drawing of the utility model after adjustment.

[0017] In the figure: 1. lifting platform; 101. gear rack; 2. auxiliary rack; 201. retaining rack; 202. positioning slide; 203. rotating roller; 3. fixed rack; 301. locking gear; 4. eccentric wheel; 401. servo motor; 402. movable arm. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In order to solve the problem that the existing lifting platform cannot maintain a stable position during actual use, affecting long-term work and poor safety, please refer to Figure 1 - Figure 3 , this embodiment provides the following technical solutions:

[0020] A rotatable eccentric lifting platform for a rolling mill includes a lifting platform 1, an auxiliary frame 2, a fixed frame 3 and an eccentric wheel 4. The lifting platform 1 is arranged inside the auxiliary frame 2, and the fixed frame 3 is arranged between the lifting platform 1 and the auxiliary frame 2. A locking gear 301 is installed on the upper end of the fixed frame 3, and a tooth rack 101 is installed on both sides of the lifting platform 1. The eccentric wheel 4 is arranged below the auxiliary frame 2, and a rotating roller 203 is installed between the auxiliary frame 2. The lifting platform 1 is lifted and lowered after the rolling mill workpiece is placed. During the lifting process, the auxiliary frame 2 maintains the stable position of the lifting platform 1 through the fixed frame 3.

[0021] The gear rack 101 is welded to the lifting platform 1, and the locking gear 301 is meshed with the gear rack 101. During the lifting process of the lifting platform 1, the gear racks 101 on both sides are limited by the positioning slide groove 202. An integrally formed positioning slide groove 202 is provided on one side of the auxiliary frame 2. The gear rack 101 is embedded in the interior of the positioning slide groove 202 and is slidably connected to the auxiliary frame 2 to maintain a stable position, improve work quality, facilitate long-term work, and enhance safety.

[0022] The auxiliary frame 2 is welded to both sides of the outside with a retaining frame 201, and a gear row is provided inside the retaining frame 201. The locking gear 301 is meshed with the retaining frame 201 through the gear row. The locking gear 301 at the upper end of the fixed frame 3 is limited by the gear row on one side of the auxiliary frame 2. After the locking gear 301 rotates, it drives the lifting platform 1 to perform lifting work.

[0023] Specifically, the lifting platform 1 is lifted and lowered after the rolling mill workpiece is placed. During the lifting process, the auxiliary frame 2 maintains the position of the lifting platform 1 stable through the fixed frame 3, and the locking gear 301 at the upper end of the fixed frame 3 is limited by the gear row on one side of the auxiliary frame 2. After the locking gear 301 rotates, it drives the lifting platform 1 to lift and lower. During the lifting process, the gear racks 101 on both sides are limited by the positioning slide grooves 202 to maintain a stable position, improve work quality, facilitate long-term work, and enhance safety.

[0024] In order to solve the problem that the existing lifting platform has a single lifting structure and cannot work continuously during actual use, please refer to Figure 1 - Figure 3 , this embodiment provides the following technical solutions:

[0025] The lower end of the auxiliary frame 2 is rotatably connected to the rotating roller 203 through a bearing. A movable arm 402 is installed at the lower end of the rotating roller 203. The upper and lower ends of the movable arm 402 are movably connected to the rotating roller 203 and one end of the eccentric wheel 4 respectively. A servo motor 401 is installed on one side of the eccentric wheel 4. The motor shaft of the servo motor 401 is fixedly connected to the eccentric wheel 4 through a coupling. The eccentric wheel 4 is driven to rotate by the servo motor 401, and the eccentric wheel 4 drives the movable arm 402 to move, pushing the rotating roller 203 and the auxiliary frame 2 to perform lifting and lowering operations.

[0026] The fixed frame 3 passes through the auxiliary frame 2 and is slidably connected to the auxiliary frame 2. The upper end of the auxiliary frame 2 is rotatably connected to the locking gear 301 through a bearing. When the position needs to be adjusted, an inner rotor motor is set inside the rotating roller 203 to drive the rotating roller 203 and the auxiliary frame 2 to rotate, so that the lifting platform 1 can be raised and lowered.

[0027] Specifically, when the position needs to be adjusted, an inner rotor motor is set inside the rotating roller 203 to drive the rotating roller 203 and the auxiliary frame 2 to rotate, so that the lifting platform 1 can be lifted and lowered. The servo motor 401 drives the eccentric wheel 4 to rotate, and the eccentric wheel 4 drives the movable arm 402 to move, pushing the rotating roller 203 and the auxiliary frame 2 to lift and lower.

[0028] Working principle: When the position needs to be adjusted, an inner rotor motor is set inside the rotating roller 203 to drive the rotating roller 203 and the auxiliary frame 2 to rotate, so that the lifting platform 1 can be lifted and lowered. When in use, after the lifting platform 1 places the rolling mill workpiece, the servo motor 401 drives the eccentric wheel 4 to rotate, and the eccentric wheel 4 drives the movable arm 402 to move, pushing the rotating roller 203 and the auxiliary frame 2 to lift and lower. During the lifting process of the auxiliary frame 2, the position of the lifting platform 1 is kept stable by the fixed frame 3, and the locking gear 301 at the upper end of the fixed frame 3 is limited by the gear row on one side of the auxiliary frame 2. After the locking gear 301 rotates, it drives the lifting platform 1 to lift and lower. During the lifting process of the lifting platform 1, the gear racks 101 on both sides are limited by the positioning slide grooves 202, so as to maintain a stable position, improve work quality, facilitate long-term work, and enhance safety.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A rotatable eccentric lifting platform for a rolling mill, comprising a lifting platform frame (1), an auxiliary frame (2), a fixed frame (3) and an eccentric wheel (4), characterized in that: The lifting platform (1) is arranged inside the auxiliary frame (2), the fixed frame (3) is arranged between the lifting platform (1) and the auxiliary frame (2), a locking gear (301) is installed at the upper end of the fixed frame (3), a gear rack (101) is installed on both sides of the lifting platform (1), the eccentric wheel (4) is arranged below the auxiliary frame (2), and a rotating roller (203) is installed between the auxiliary frames (2).

2. The rotatable eccentric lifting platform for a rolling mill according to claim 1, characterized in that: The gear rack (101) is welded to the lifting platform (1), and the locking gear (301) is meshed with the gear rack (101).

3. The rotatable eccentric lifting platform for a rolling mill according to claim 1, characterized in that: Both sides of the exterior of the auxiliary frame (2) are welded to a retaining frame (201), a tooth row is provided inside the retaining frame (201), and the locking gear (301) is meshedly connected to the retaining frame (201) via the tooth row.

4. The rotatable eccentric lifting platform for a rolling mill according to claim 1, characterized in that: An integrally formed positioning slot (202) is provided on one side of the auxiliary frame (2), and the tooth rack (101) is embedded in the positioning slot (202) and is slidably connected to the auxiliary frame (2).

5. The rotatable eccentric lifting platform for a rolling mill according to claim 1, characterized in that: The lower end of the auxiliary frame (2) is rotatably connected to the rotating roller (203) via a bearing, a movable arm (402) is installed at the lower end of the rotating roller (203), the upper end and the lower end of the movable arm (402) are movably connected to the rotating roller (203) and one end of the eccentric wheel (4), respectively, a servo motor (401) is installed on one side of the eccentric wheel (4), and the motor shaft of the servo motor (401) is fixedly connected to the eccentric wheel (4) via a coupling.

6. The rotatable eccentric lifting platform for a rolling mill according to claim 1, characterized in that: The fixing frame (3) passes through the auxiliary frame (2) and is slidably connected to the auxiliary frame (2); the upper end of the auxiliary frame (2) is rotationally connected to the locking gear (301) via a bearing.

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