Chuck device of finish rolling four-high mill

Abstract

The utility model relates to the technical field of finish rolling equipment, in particular to a finish rolling four-roller mill chuck device which comprises a left chuck frame assembly and a right chuck frame assembly, the left chuck frame assembly and the right chuck frame assembly are symmetrically arranged on the two sides of an upper working roller and a lower working roller, and the left chuck frame assembly and the right chuck frame assembly are the same in structure. The left chuck frame assembly comprises a base, a chuck hydraulic cylinder and a jacking hydraulic cylinder are installed on the base, a movable frame is installed on an output shaft of the chuck hydraulic cylinder, and a chuck frame is installed on the outer side of the movable frame. According to the finish rolling four-roller mill chuck device, an original sliding key guide groove type is changed into a pulley type, original T-shaped groove up-down sliding is changed into rail wheel type up-down rolling, the finish rolling four-roller mill chuck device is flexible and free of jamming, maintenance is convenient, the failure rate is reduced, the roller replacing time is shortened, the sliding frame can be driven by the jacking hydraulic cylinder to vertically and stably move, and the working efficiency is improved. And the movable frame can be driven to horizontally and stably move through the chuck hydraulic cylinder, so that the working roll is clamped and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of finishing rolling equipment, in particular to a chuck device for a finishing four-roller rolling mill. Background Art

[0002] The finishing mill is an instrument used in the field of power and electrical engineering. According to the number of rollers, the finishing mill can be divided into two-roller, four-roller, six-roller, eight-roller, twelve-roller, eighteen-roller, etc.; according to the arrangement of the rollers, it can be divided into "L" type, "T" type, "F" type, "Z" type and "S" type.

[0003] The existing finishing mill has a sliding key on the original chuck frame, and a "T"-shaped groove structure on the top and bottom. The structure is complex and the upper and lower movements are not flexible. The sliding key is easily deformed during use. The deformation of the chuck frame affects the positioning of the working rolls and the progress of the finishing rolling work, resulting in longer roll changing time and high maintenance costs and difficulty. Utility Model Content

[0004] The purpose of the utility model is to provide a chuck device for a finishing four-roller rolling mill to solve the problem proposed in the above background technology that the original chuck frame of the existing finishing mill is a sliding key, and the upper and lower parts are "T"-shaped groove structures, the structure is complex, the upper and lower movements are not flexible, the sliding key is easily deformed during use, the deformation of the chuck frame affects the positioning of the working rolls, affects the progress of the finishing work, causes the roll changing time to be prolonged, and the maintenance cost is high and difficult.

[0005] To achieve the above-mentioned purpose, the utility model provides a chuck device for a finishing four-roll mill, comprising a left chuck frame assembly and a right chuck frame assembly, wherein the left chuck frame assembly and the right chuck frame assembly are symmetrically arranged on both sides of an upper and lower working roll, and the left chuck frame assembly and the right chuck frame assembly have the same structure, and the left chuck frame assembly comprises a base, and a chuck hydraulic cylinder and a lifting hydraulic cylinder are installed on the base, and a movable frame is installed on the output shaft of the chuck hydraulic cylinder, and a chuck frame is installed on the outer side of the movable frame.

[0006] Preferably, the lifting hydraulic cylinder is vertically installed on the side of the base through the lifting hydraulic cylinder base, the output shaft of the lifting hydraulic cylinder is installed with a sliding frame, and the upper outer side of the base is installed with a sliding rail. The sliding frame slides vertically along the sliding rail driven by the output shaft of the lifting hydraulic cylinder.

[0007] Preferably, the sliding frame is provided with two sliding frame axles, sliding frame wheels are installed at both ends of the sliding frame axles, and the sliding frame axles are fixed to the sliding frame through axle glands.

[0008] Preferably, the outer shell of the chuck hydraulic cylinder is installed on the sliding frame, and the output shaft of the chuck hydraulic cylinder passes through the sliding frame and is connected to the movable frame.

[0009] Preferably, two clamping holes are provided on the outer side of the chuck frame to clamp and fix the outer side of the working roll respectively.

[0010] Preferably, a guide rod is installed on the back of the movable frame, a guide hole is opened on the surface of the sliding frame, and the guide rod is slidably connected to the guide hole.

[0011] Preferably, the lifting hydraulic cylinder base is fixed to the outer wall of the base by bolts.

[0012] Preferably, the size of the sliding rail is matched with the size of the sliding frame wheel.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the chuck device of the finishing four-roller rolling mill, the original sliding key guide groove type is changed to a pulley type, and the original "T"-shaped groove sliding up and down is changed to a track wheel type rolling up and down. It is flexible and will not get stuck, and is easy to maintain, with a reduced failure rate and a reduced roll changing time. The sliding frame can be driven to move vertically and stably through the lifting hydraulic cylinder, and the movable frame can be driven to move horizontally and stably through the chuck hydraulic cylinder, thereby achieving the clamping and fixation of the working roll. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a structural schematic diagram of the left chuck frame assembly in the utility model;

[0017] Figure 3 It is a side structural schematic diagram of the left chuck frame assembly in the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Left chuck frame assembly; 11. Base; 111. Sliding rail; 12. Chuck frame; 13. Movable frame; 14. Chuck hydraulic cylinder; 15. Lifting hydraulic cylinder; 151. Sliding frame; 16. Lifting hydraulic cylinder base; 17. Axle pressure cover; 18. Sliding frame axle; 19. Sliding frame wheel; 2. Right chuck frame assembly; 3. Working roller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a chuck device for a finishing four-roller rolling mill, such as Figure 1-Figure 3 As shown, it includes a left chuck frame assembly 1 and a right chuck frame assembly 2, which are symmetrically arranged on both sides of the upper and lower working rollers 3 for clamping and positioning the working rollers 3. The left chuck frame assembly 1 and the right chuck frame assembly 2 have the same structure. The left chuck frame assembly 1 includes a base 11, on which a chuck hydraulic cylinder 14 and a lifting hydraulic cylinder 15 are installed. The output shaft of the chuck hydraulic cylinder 14 is installed with a movable frame 13, which is driven by the chuck hydraulic cylinder 14 to move horizontally, and a chuck frame 12 is installed on the outer side of the movable frame 13 for clamping and clamping the working rollers 3.

[0022] In this embodiment, the lifting hydraulic cylinder 15 is vertically installed on the side of the base 11 through the lifting hydraulic cylinder base 16. The output shaft of the lifting hydraulic cylinder 15 is installed with a sliding frame 151. The upper outer side of the base 11 is installed with a sliding rail 111. The sliding frame 151 is driven by the output shaft of the lifting hydraulic cylinder 15 to slide vertically along the sliding rail 111. The lifting hydraulic cylinder 15 drives the sliding frame 151 to move vertically, thereby driving the movable frame 13 to move vertically.

[0023] Specifically, two sliding frame axles 18 are provided on the sliding frame 151 , and sliding frame wheels 19 are installed at both ends of the sliding frame axles 18 . The sliding frame axles 18 are fixed to the sliding frame 151 through axle pressure covers 17 , which facilitates the installation and fixation of the sliding frame axles 18 .

[0024] Furthermore, the outer shell of the chuck hydraulic cylinder 14 is installed on the sliding frame 151, and the output shaft of the chuck hydraulic cylinder 14 passes through the sliding frame 151 and is connected to the movable frame 13. The operation of the chuck hydraulic cylinder 14 can drive the movable frame 13 to move stably horizontally.

[0025] Furthermore, two clamping holes are provided on the outer side of the chuck frame 12 to clamp and fix the outer side of the working roll 3 respectively, so as to clamp and fix the working roll 3.

[0026] Furthermore, a guide rod is installed on the back of the movable frame 13, and a guide hole is opened on the surface of the sliding frame 151. The guide rod is slidably connected to the guide hole, so that the movable frame 13 can move horizontally stably without deviation.

[0027] Furthermore, the lifting hydraulic cylinder base 16 is fixed to the outer wall of the base 11 by bolts, so as to facilitate the installation and removal of the lifting hydraulic cylinder base 16 .

[0028] Furthermore, the size of the sliding rail 111 is adapted to the size of the sliding frame wheel 19 , so as to facilitate the vertical movement of the sliding frame wheel 19 .

[0029] When the chuck device of the finishing four-roller rolling mill of the utility model is in use, the upper and lower working rolls 3 are first clamped and fixed by the left chuck frame assembly 1 and the right chuck frame assembly 2, the product to be processed is inserted between the two working rolls 3 from one side, and the working rolls 3 are subjected to finishing rolling to form the product. The operation of the lifting hydraulic cylinder 15 can drive the sliding frame 151 to move vertically, and then drive the movable frame 13 to move vertically. The operation of the chuck hydraulic cylinder 14 can drive the movable frame 13 to move horizontally. The outer side of the movable frame 13 is equipped with a chuck frame 12 for pressing and clamping the working roll 3, so as to facilitate the adjustment of the horizontal and vertical positions of the working roll 3.

[0030] Finally, it should be noted that the electronic components of the chuck hydraulic cylinder 14, the lifting hydraulic cylinder 15, etc. in this embodiment are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively, and the specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A chuck device for a finishing four-roller rolling mill, comprising a left chuck frame assembly (1) and a right chuck frame assembly (2), characterized in that: The left chuck frame assembly (1) and the right chuck frame assembly (2) are symmetrically arranged on both sides of the upper and lower working rollers (3); the left chuck frame assembly (1) and the right chuck frame assembly (2) have the same structure; the left chuck frame assembly (1) comprises a base (11); a chuck hydraulic cylinder (14) and a lifting hydraulic cylinder (15) are mounted on the base (11); a movable frame (13) is mounted on the output shaft of the chuck hydraulic cylinder (14); and a chuck frame (12) is mounted on the outer side of the movable frame (13).

2. The chuck device for a finishing four-high rolling mill according to claim 1, characterized in that: The lifting hydraulic cylinder (15) is vertically mounted on the side of the base (11) via a lifting hydraulic cylinder base (16); a sliding frame (151) is mounted on the output shaft of the lifting hydraulic cylinder (15); a sliding rail (111) is mounted on the outer side of the upper portion of the base (11); and the sliding frame (151) slides vertically along the sliding rail (111) when driven by the output shaft of the lifting hydraulic cylinder (15).

3. The chuck device for a finishing four-high rolling mill according to claim 2, characterized in that: The sliding frame (151) is provided with two sliding frame axles (18), both ends of the sliding frame axles (18) are provided with sliding frame wheels (19), and the sliding frame axles (18) are fixed to the sliding frame (151) via axle pressure covers (17).

4. The chuck device for a finishing four-high rolling mill according to claim 3 is characterized in that: The outer shell of the chuck hydraulic cylinder (14) is mounted on the sliding frame (151), and the output shaft of the chuck hydraulic cylinder (14) passes through the sliding frame (151) and is connected to the movable frame (13).

5. The chuck device for a finishing four-high rolling mill according to claim 4, characterized in that: The outer side of the chuck frame (12) is provided with two clamping holes for clamping and fixing the outer sides of the working rolls (3) respectively.

6. The chuck device for a finishing four-high rolling mill according to claim 5, characterized in that: A guide rod is installed on the back of the movable frame (13), and a guide hole is opened on the surface of the sliding frame (151), and the guide rod is slidably connected to the guide hole.

7. The chuck device for a finishing four-high rolling mill according to claim 2, characterized in that: The lifting hydraulic cylinder base (16) is fixed to the outer wall of the base (11) by means of bolts.

8. The chuck device for a finishing four-high rolling mill according to claim 3, characterized in that: The size of the sliding rail (111) is matched with the size of the sliding frame wheel (19).

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