Steel billet feeding roller way system

Abstract

The utility model discloses a steel billet feeding roller way system which comprises a steel pushing assembly, a roller and a driving mechanism connected with the roller. The two ends of the roller are installed on bearing seats on the rack, and the bearing seats are movably connected to the rack. One end of the roller is connected with a driving shaft which is driven by a driving motor; the steel pushing assembly is composed of a rail, a pushing arm and a hydraulic cylinder, a piston rod of the hydraulic cylinder is connected with the pushing arm, and a pushing plate is arranged at the head of the pushing arm and pushes the steel billet to slide to the rollers along the rail. By means of the movable bearing seat, the problem that the roller bearing seat is prone to open welding and displacement is solved, and the roller bearing seat has the advantages of being high in practicability and safety.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling, in particular to a steel billet feeding roller system. Background Art

[0002] The continuous casting and rolling billet heating furnace is a billet heating equipment specially designed for continuous casting and rolling production lines. It is usually located at the outlet of the continuous casting machine and connected to the downstream rolling mill. It is used to heat the billet just out of the continuous casting machine to the required temperature and then send it to the rolling mill for the next step of processing. Before the billet enters the heating furnace, the steel pusher pushes the billet to the furnace area feeding roller. In the process of pushing the billet, due to the heavy weight of the billet, the billet and the roller will generate a large axial friction, and the billet has a certain impact when it is on the roller. Under the repeated action of this friction and impact force, the roller bearing seat is prone to open welding and displacement, thereby affecting the billet feeding. Even more, after the roller bearing seat is opened, the above friction and impact force directly act on the drive shaft, resulting in damage to the drive shaft, connectors or drive motor, which will not only affect production, but also pose potential safety hazards. Utility Model Content

[0003] The utility model aims to provide a billet feeding roller system to solve the problems mentioned in the background technology in view of the drawbacks of the prior art.

[0004] The problem described in the utility model is achieved by the following technical solutions:

[0005] A steel billet feeding roller system comprises a steel pushing assembly, a roller and a driving mechanism connected thereto; both ends of the roller are mounted on bearing seats on a frame, and the bearing seats are movably connected to the frame; one end of the roller is connected to a driving shaft, and the driving shaft is driven by a driving motor; the steel pushing assembly consists of a track, a push arm, and a hydraulic cylinder, the piston rod of the hydraulic cylinder is connected to the push arm, and a push plate is provided at the head of the push arm, and the push plate pushes the steel billet to slide along the track onto the roller.

[0006] The above-mentioned billet feeding roller system has a slide rail arranged on the frame, the slide rail is arranged horizontally, a slider matching the slide rail is arranged on the bearing seat, and a buffer is arranged between the slider and the frame.

[0007] In the above-mentioned billet feeding roller system, the buffer member is a spring or a spring shock absorber.

[0008] The above-mentioned billet feeding roller system, the driving shaft is connected to the rotating shaft of the roller through a first universal coupling, and the driving shaft is connected to the output shaft of the driving motor through a second universal coupling; the driving shaft is a two-section structure, consisting of a first shaft connected to a second shaft, and the ends of the first shaft and the second shaft are connected by internal and external splines to realize the extension and retraction of the driving shaft.

[0009] The above-mentioned billet feeding roller system is provided with a return detection component, which is composed of a magnet, a Hall sensor, a CPU, an alarm SGL and a control circuit; the magnet is arranged on the slider, the Hall sensor is arranged on the frame, and the magnet and the Hall sensor constitute a non-contact proximity switch; the output end of the Hall sensor is connected to the input end of the CPU, and the output end of the CPU is respectively connected to the control alarm and the drive motor.

[0010] The above-mentioned billet feeding roller system has 10-14 groups of rollers, and each group of rollers has an independent drive. Beneficial Effects

[0011] Compared with the prior art, the utility model has the following advantages: First, by setting a horizontal slide rail on the frame, the bearing seat of the roller can be movably connected to the frame, so that the bearing seat can be moved in the horizontal direction. When the steel pusher pushes the steel billet to the roller, the friction and impact force acting on the roller are buffered by the buffer between the bearing seat and the frame, reducing the buffering of the frame, and avoiding the problem of welding and opening of the bearing seat and the frame or loosening of the screw connection. Second, by setting a drive shaft formed by connecting the first shaft and the second shaft, the extension and contraction of the drive shaft is realized, and then the two ends of the drive shaft are respectively connected to the drive motor and the roller shaft through two universal couplings, so that the roller does not affect the driving mechanism when sliding along the axial direction. Third, a return detection component is set, and the detection of the return of the bearing seat is realized by the Hall sensor set on the frame and the magnetic steel set on the slider. According to the return situation, the CPU controls the on and off of the alarm SGL and the drive motor to ensure that the roller returns correctly, so as to prevent the transportation of the steel billet from causing safety hazards when the roller returns incorrectly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 This is the control circuit diagram of the return detection component of the utility model;

[0016] The symbols in the figure represent:

[0017] 1. Push steel assembly, 2. Roller, 3. Frame, 4. Bearing seat, 5. Drive shaft, 6. Drive motor, 7. Steel billet, 8. First universal joint, 9. Second universal joint, 10. Magnetic steel, 11. Hall sensor, 1-1. Track, 1-2. Push arm, 1-3. Hydraulic cylinder, 3-1. Buffer, 4-1. Slider, 5-1. First axis, 5-2. Second axis. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-3 As shown, the utility model includes a steel push assembly 1, a roller 2 and a driving mechanism connected thereto; both ends of the roller 2 are mounted on a bearing seat 4 on a frame 3, and the bearing seat 4 can be movably connected to the frame 3; one end of the roller 2 is connected to a driving shaft 5, and the driving shaft 5 is driven by a driving motor 6; the steel push assembly 1 is composed of a track 1-1, a push arm 1-2, and a hydraulic cylinder 1-3, the piston rod of the hydraulic cylinder 1-3 is connected to the push arm 1-2, and a push plate is provided at the head of the push arm 1-2, and the push plate pushes the steel billet 7 to slide along the track 1-1 onto the roller 2. The push arm 1-2 is connected to the track 1-1 through a sliding pair, a push arm slider is provided on the push arm 1-2, and a slide groove matching the push arm slider is provided on the track 1-1, and the number of push arms 1-2 can be set to 2-3, and the corresponding number of hydraulic cylinders 1-3 is 2-3 groups.

[0020] The bearing seat 4 is connected to the frame 3 in the following manner: a slide rail or a slide groove is provided on the frame 3, the slide rail or the slide groove is provided horizontally, a slider 4-1 matching the slide rail or the slide groove is provided on the bearing seat 4, and a buffer 3-1 is provided between the slider 4-1 and the frame 3. The buffer 3-1 is a spring or a spring shock absorber, and the spring shock absorber can be a spring shock absorber with damping, such as a spring shock absorber with hydraulic damping, or Hengfan shock absorber or Dingsheng shock absorber ZD-21 can be selected, with a load of 2750-3300Kg, which fully meets the buffer thrust requirements.

[0021] This arrangement enables the bearing seat 4 to move in the horizontal direction. When the steel pusher assembly 1 pushes the steel billet 7 to move to the roller 2, the friction and impact force acting on the roller 2 are buffered by the buffer member 3-1 between the bearing seat 4 and the frame 3, thereby reducing the buffering of the frame 3 and avoiding the problem of welding open or screw loosening between the bearing seat 4 and the frame 3.

[0022] Corresponding to the movable bearing seat 4, the drive shaft 5 adopts a retractable design: the drive shaft 5 is connected to the rotating shaft of the roller 2 through the first universal coupling 8, and the drive shaft 5 is connected to the output shaft of the drive motor 6 through the second universal coupling 9; the drive shaft 5 is a two-stage structure, consisting of a first shaft 5-1 connected to a second shaft 5-2, and the ends of the first shaft 5-1 and the second shaft 5-2 are connected through internal and external splines, so that the drive shaft 5 can be extended and retracted. A reducer can also be arranged between the second universal coupling 9 and the drive motor 6 as needed.

[0023] The number of the rollers 2 is 10-14 groups, which can also be increased or decreased as needed, and each group of rollers 2 has an independent drive.

[0024] After the buffer 3-1 is set, the impact of the steel billet 7 during material transfer can be reduced, but the problem of the roller 2 not returning to its original position due to the failure of the buffer 3-1 should also be prevented. The following solution is adopted: a return detection component is set, and the return detection component is composed of a magnetic steel 10, a Hall sensor 11, a CPU, an alarm SGL and a control circuit; the magnetic steel 10 is set on the slider 4-1, and the Hall sensor 11 is set on the frame 3. The magnetic steel 10 and the Hall sensor 11 constitute a non-contact proximity switch; the output end of the Hall sensor 11 is connected to the input end of the CPU, and the output end of the CPU is respectively connected to the control alarm and the drive motor 6. The above-mentioned Hall sensor 11 can also be replaced by an inductive proximity switch, such as the Autonics PRT series proximity switch. The inductive proximity switch is set on the frame 3, and its induction head is directly facing the slider 4-1, detecting and identifying the approach and distance of the slider 4-1, and then controlling the on and off of the switch.

[0025] Figure 3 It is shown that only 7 Hall sensors 11 are connected to the P0.0 to P0.7 input terminals of the CPU respectively. In fact, they can be connected to other input terminals of the CPU according to the number of Hall sensors 11. Of course, multiple CPUs can also be set for connection and control. The output terminals of the CPU are connected to the control relays J1 and J2 through the transistor amplifier circuit respectively, so as to realize the control of the alarm SGL and the drive motor 6. The control of the drive motor 6 can be achieved by using one output terminal of the CPU to control the relay J2, and all the drive motors 6 are controlled in parallel by the relay J2; or a single output terminal of the CPU can be used to control a single control drive motor 6 one by one through the transistor amplifier circuit and the relay. The alarm SGL is an audible and visual alarm. The CPU can use the C8051F340 series chip, which has 40 input / output terminals, which can fully meet the needs.

Claims

1. A billet feeding roller system, characterized in that: The invention comprises a steel pushing assembly (1), a roller (2) and a driving mechanism connected thereto; both ends of the roller (2) are mounted on a bearing seat (4) on a frame (3), and the bearing seat (4) is movably connected to the frame (3); one end of the roller (2) is connected to a driving shaft (5), and the driving shaft (5) is driven by a driving motor (6); the steel pushing assembly (1) is composed of a track (1-1), a pushing arm (1-2), and a hydraulic cylinder (1-3); a piston rod of the hydraulic cylinder (1-3) is connected to the pushing arm (1-2), and a pushing plate is provided at the head of the pushing arm (1-2), and the pushing plate pushes the steel billet (7) to slide along the track (1-1) onto the roller (2).

2. The billet feeding roller system according to claim 1, characterized in that: A slide rail is arranged on the frame (3), and the slide rail is arranged horizontally. A sliding block (4-1) matching the slide rail is arranged on the bearing seat (4), and a buffer member (3-1) is arranged between the sliding block (4-1) and the frame (3).

3. The billet feeding roller system according to claim 2, characterized in that: The buffer component (3-1) is a spring or a spring shock absorber.

4. The billet feeding roller system according to claim 1, characterized in that: The drive shaft (5) is connected to the rotating shaft of the roller (2) via a first universal coupling (8), and the drive shaft (5) is connected to the output shaft of the drive motor (6) via a second universal coupling (9); the drive shaft (5) is a two-section structure, consisting of a first shaft (5-1) connected to a second shaft (5-2), and the ends of the first shaft (5-1) and the second shaft (5-2) are connected via internal and external spline fitting, so that the drive shaft (5) can be extended and retracted.

5. The billet feeding roller system according to claim 1, characterized in that: A return detection component is provided, the return detection component comprising a magnet (10), a Hall sensor (11), a CPU, an alarm SGL and a control circuit; the magnet (10) is provided on the slider (4-1), the Hall sensor (11) is provided on the frame (3), and the magnet (10) and the Hall sensor (11) form a non-contact proximity switch; the output end of the Hall sensor (11) is connected to the input end of the CPU, and the output end of the CPU is respectively connected to the control alarm and the drive motor (6).

6. The billet feeding roller system according to claim 1, characterized in that: The number of the rollers (2) is 10-14 groups, and each group of rollers (2) has an independent drive.

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