Push plate device for improving utilization rate of manipulator of rolling mill and manipulator

Abstract

The invention discloses a push plate device for improving the utilization rate of a rolling mill manipulator and the manipulator, and belongs to the field of technical metallurgical equipment.The push plate device comprises a push plate frame and a wear-resisting plate arranged on the working face of the push plate frame, and N wear-resisting lining plates are arranged on the wear-resisting plate in the advancing direction of a steel plate; n sets of shaft systems corresponding to the wear-resistant lining plates are arranged in the push plate frame, N is a natural number larger than 1, the end of a working shaft of each set of shaft system is connected with the corresponding wear-resistant lining plate, and the adjacent shaft systems transmit power through a linkage mechanism to achieve rotation in the same direction. The N groups of shaft systems comprise a group of driving shaft systems and N-1 groups of driven shaft systems, a driving motor is arranged on the push plate frame, and the driving motor is connected with the driving shaft systems through a transmission mechanism and a Japanese tile mechanism. Angle adjustment can be conducted according to the abraded position of the abrasion-resistant lining plate, the abraded position can avoid a steel plate contact area, the abrasion-resistant lining plate is rotated to the non-abraded direction to be continuously used, and the utilization rate of the abrasion-resistant plate on the push plate is increased.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of metallurgical equipment, and particularly relates to a push plate transmission system of a mill pusher. BACKGROUND

[0002] In the plate production process, the pusher device is used to push the billet from the heating furnace to the rolling mill for rolling. During the pushing process, the pusher push plate needs to continuously contact the edge of the billet to ensure the centering of the billet. Therefore, the wear plate on the working surface of the push plate is easily worn out into a groove under the long-time friction, and cannot be used. SUMMARY

[0003] In view of the problems existing in the prior art, the present application provides a push plate device and a pusher for improving the utilization rate of a mill pusher, which can adjust the angle according to the worn position of the wear lining plate, so that the worn part is away from the contact area of the steel plate, and the wear lining plate is rotated to the direction not worn for continuous use, and the utilization rate of the wear plate on the push plate is increased by several times.

[0004] The present application is implemented in the following manner. On one hand, a push plate device for improving the utilization rate of a mill pusher is provided, which comprises a push plate frame and a wear plate arranged on the working surface of the push plate frame. N wear lining plates are arranged on the wear plate in the advancing direction of the steel plate. N sets of shaft systems corresponding to the wear lining plates are arranged in the push plate frame. N is a natural number greater than 1. The working shaft end of each set of shaft systems is connected with the corresponding wear lining plate. The power is transmitted between adjacent shaft systems through a linkage mechanism to realize rotation in the same direction. The N sets of shaft systems comprise one set of driving shaft systems and N-1 sets of driven shaft systems. A driving motor is arranged on the push plate frame. The driving motor is connected with the driving shaft systems through a transmission mechanism and a Geneva mechanism.

[0005] Further, the working shaft end of each set of shaft systems away from the wear lining plate is provided with a push-pull cylinder. In the pushed state of the piston rod of the push-pull cylinder, the transmission path of the linkage mechanism and the Geneva mechanism is closed, the working shafts in the shaft system are intermittently rotated, and the angle adjustment of the wear lining plate is realized. In the retracted state of the piston rod of the push-pull cylinder, the transmission path of the linkage mechanism and the Geneva mechanism is disconnected, and the working shafts in the shaft system stop rotating.

[0006] Further, the push-pull cylinder is connected with an oil pipe through a rotary joint.

[0007] Further, the transmission mechanism comprises a transmission shaft arranged in the push plate frame. The output end of the driving motor penetrates into the push plate frame and is provided with a driving gear. The transmission shaft is provided with a driven gear which can engage with the driving gear.

[0008] Further, the Geneva mechanism comprises a driving wheel and a driven wheel, the driving wheel is arranged on a transmission shaft of the transmission mechanism, the driven wheel is arranged on a working shaft of the driving shaft system, the driven wheel is provided with M slots, M is a natural number greater than 3, and the working end face of the driving wheel is provided with a pin capable of extending into the slot of the driven wheel.

[0009] Further, the linkage mechanism comprises an intermediate shaft arranged between adjacent shaft systems, the working shaft of each group of shaft systems is provided with a first transmission gear, and the intermediate shaft is provided with a second transmission gear capable of being engaged with the first transmission gear.

[0010] Further, the wear-resistant plate is provided with a mounting hole corresponding to the wear-resistant lining plate, the mounting hole is a tapered hole, the cross section of the wear-resistant lining plate is a trapezoidal structure, and the large-diameter end of the wear-resistant lining plate faces the steel plate side.

[0011] Further, the wear-resistant lining plate is a polygonal structure.

[0012] Further, the horizontal center lines of the N wear-resistant lining plates are located at the same height.

[0013] The pusher bed is characterized in that the pusher plate device in any one of claims 1 to 9 is used.

[0014] The pusher plate device has the advantages and technical effects that: due to the above technical scheme, the wear-resistant lining plate is embedded in the wear-resistant plate, and the wear-resistant lining plate does not need to be replaced immediately when it is worn to the extent that it cannot work normally. The transmission structure arranged in the pusher plate frame can be adjusted in angle according to the position of the wear-resistant lining plate that has been worn, so that the wear part avoids the contact area of the steel plate, and the wear-resistant lining plate is rotated to the direction that has not been worn to continue to be used, thereby improving the use rate of the wear-resistant plate on the pusher plate by several times. The pusher plate device can be repeatedly used without repeated replacement, thereby greatly improving the use rate of the pusher plate of the pusher bed and reducing the replacement frequency of the wear-resistant plate of the pusher plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a perspective view of a pusher plate device provided by an embodiment of the present application.

[0016] Figure 2 FIG. 4 is a schematic view of the internal structure of the pusher plate frame when the piston rod of the push-pull cylinder is in a retracted state.

[0017] Figure 3 FIG. 5 is a schematic view of the internal structure of the pusher plate frame when the piston rod of the push-pull cylinder is in a pushed-out state.

[0018] Figure 4 FIG. 6 is a schematic view of the transmission structure of the driving motor and the driving shaft system.

[0019] Figure 5 is a structural schematic diagram of the Geneva mechanism provided by the embodiment of the present application.

[0020] Figure 6 is a schematic diagram of the transmission state of the Geneva mechanism provided by the embodiment of the present application.

[0021] Figure 7 is a use effect diagram of the wear-resistant lining plate after wear provided by the embodiment of the present application.

[0022] In the figure: 1, push plate frame; 2, wear-resistant plate; 2-1, mounting hole; 3, wear-resistant lining plate; 3-1, wear mark; 4, driving motor; 5, shafting; 5-1, driving shafting; 5-2, driven shafting; 6, linkage mechanism; 6-1, intermediate shaft; 6-2, first transmission gear; 6-3, second transmission gear; 7, transmission mechanism; 7-1, transmission shaft; 7-2, driving gear; 7-3, driven gear; 8, Geneva mechanism; 8-1, driving wheel; 8-2, driven wheel; 8-3, slot; 8-4, pin; 9, push-pull cylinder. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0024] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] As Figures 1 to 7As shown, the application provides a push plate device for improving the utilization rate of the mill pusher, which comprises a push plate frame 1 and a wear plate 2 arranged on the working surface of the push plate frame 1. The wear plate 2 is provided with N wear lining plates 3 in the advancing direction of the steel plate. Preferably, the horizontal center lines of the N wear lining plates 3 are at the same height, which can realize complete and uniform contact with the side edge of the billet. This ensures that the contact force is evenly distributed when the push plate pushes the billet, effectively avoiding uneven stress, billet tilting or "edge biting" phenomenon caused by different heights of wear lining plates 3, thereby ensuring the stability of the pusher centering function and ensuring the smooth progress of the rolling process; all wear lining plates 3 can simultaneously contact the billet and jointly bear the friction and wear, so that the wear amount of each lining plate tends to be consistent. This prevents the case of excessive wear of individual wear lining plates 3, and realizes synchronous and uniform wear of all wear lining plates 3. The wear plate 2 is provided with mounting holes 2-1 corresponding to the wear lining plates 3, the mounting holes 2-1 are tapered holes, the cross section of the wear lining plate 3 is a trapezoidal structure, and the large-diameter end of the wear lining plate 3 faces the steel plate side. The wear lining plate 3 is a polygonal structure. The cooperation of the tapered hole and the trapezoidal lining plate forms a natural wedge self-locking structure. Under the condition of great impact and vibration of the pusher pushing the billet, this structure can effectively prevent the wear lining plate 3 from loosening and falling out of the mounting hole 2-1, ensuring the safety and reliability of the equipment operation; the large-diameter end faces the billet, the contact surface of the wear lining plate 3 is larger, and the utilization rate of the wear-resistant material is greatly improved.

[0026] N groups of shaft systems 5 corresponding to the wear lining plates 3 are arranged in the push plate frame 1, N is a natural number greater than 1, the working shaft end of each group of shaft systems 5 is connected with the corresponding wear lining plate 3, specifically, the wear lining plate 3 is threadedly connected with the working shaft end, facilitating the disassembly and assembly of the wear lining plate 3. The adjacent shaft systems 5 are connected through a linkage mechanism 6 to realize the rotation in the same direction.

[0027] Specifically, the linkage mechanism 6 comprises an intermediate shaft 6-1 arranged between adjacent shaft systems 5, and a first transmission gear 6-2 arranged on the working shaft of each group of shaft systems 5. The intermediate shaft 6-1 is provided with a second transmission gear 6-3 which can mesh with the first transmission gear 6-2.

[0028] It should be noted that the shaft system 5 comprises a working shaft and a bearing supporting the rotation of the working shaft, which can slide in the preset sliding track with the linear motion of the working shaft.

[0029] The N sets of shaft systems 5 include one set of driving shaft systems 5-1 and N-1 sets of driven shaft systems 5-2, and the driving motor 4 is arranged on the push plate frame 1 and connected with the driving shaft system 5-1 through the transmission mechanism 7 and the Geneva mechanism 8. The continuous rotation of the driving motor 4 is converted into intermittent rotary motion by the Geneva mechanism 8, so that the wear-resistant lining plate 3 is slightly rotated by a certain angle after completing a feeding cycle of the pusher. In this way, the normal pushing operation of the pusher is not affected, and the contact position of the lining plate is automatically adjusted to realize the uniformization of the wear surface.

[0030] The transmission mechanism 7 includes a transmission shaft 7-1 arranged in the push plate frame 1, the output end of the driving motor 4 penetrates into the push plate frame 1 and is provided with a driving gear 7-2, and the transmission shaft 7-1 is provided with a driven gear 7-3 which can be engaged with the driving gear 7-2. The driving gear 7-2 and the driven gear 7-3 are bevel gears.

[0031] As shown in Figure 5 The Geneva mechanism 8 includes a driving wheel 8-1 and a driven wheel 8-2, the driving wheel 8-1 is arranged on the transmission shaft 7-1 of the transmission mechanism 7, the driven wheel 8-2 is arranged on the working shaft of the driving shaft system 5-1, the driven wheel 8-2 is provided with M slots 8-3, M is a natural number greater than 3, and the working end surface of the driving wheel 8-1 is provided with a pin 8-4 which can be inserted into the slot 8-3 of the driven wheel 8-2. Preferably, the rotation angle of the driven wheel 8-2 = 360° / M, the number of slots 8-3 M = 4, 5, 6, 8. The number of slots 8-3 corresponds to the rotation angle of the driven wheel 8-2, which is 90°, 72°, 60°, 45°.

[0032] Further, the end of the working shaft of each set of shaft systems 5 away from the wear-resistant lining plate 3 is provided with a push-pull cylinder 9, as shown in Figure 3 The piston rod of the push-pull cylinder 9 is in the pushing state, the transmission path of the linkage mechanism 6 and the Geneva mechanism is closed, the working shafts in the shaft system 5 rotate intermittently, and the angle adjustment of the wear-resistant lining plate 3 is realized; as shown in Figure 2 The piston rod of the push-pull cylinder 9 is in the retracted state, the transmission path of the linkage mechanism 6 and the Geneva mechanism is disconnected, and the working shafts in the shaft system 5 stop rotating. By controlling the closing and opening of the transmission path through the push-pull cylinder 9, the operator can flexibly choose whether to adjust the angle of the wear-resistant lining plate 3 according to the actual production needs and the wear condition. In the working condition of light wear or no adjustment, the piston rod is retracted to disconnect the transmission, and the working shafts in the shaft system 5 stop rotating, which avoids unnecessary mechanical action. After the transmission path is disconnected, the transmission parts such as the Geneva mechanism 8, the linkage mechanism 6 and the driving motor 4 are completely separated from the working shaft. This avoids damage to the precise transmission mechanism 7 caused by the reaction force when the push plate bears a large impact load or is blocked, plays a role in overload protection, and improves the stability and reliability of the entire transmission system.

[0033] It should be noted that the push-pull cylinder 9 is arranged in the push plate frame 1 through a bearing, and the push-pull cylinder 9 can rotate with the rotation of the working shaft. Preferably, the push-pull cylinder 9 is connected with the oil pipe through a rotary joint. The rotation of the oil pipe can be prevented when the push-pull cylinder 9 rotates with the wear-resistant lining plate 3.

[0034] In another aspect, the push plate device is characterized in that the push plate device comprises the push plate device according to any one of claims 1 to 9.

[0035] Due to the above technical scheme, the wear-resistant lining plate 3 is embedded in the wear plate 2, and the wear-resistant lining plate 3 does not need to be replaced immediately when it is worn out and cannot work normally. The transmission structure arranged in the push plate frame 1 can be adjusted in angle according to the worn position of the wear-resistant lining plate 3, so that the wear part avoids the contact area of the steel plate, and the wear-resistant lining plate 3 is rotated to the direction not worn out for continuous use. The use rate of the wear plate 2 on the push plate is improved by several times. The push plate device can be repeatedly used without repeated replacement, the use rate of the push plate of the push bench is greatly improved, and the replacement frequency of the wear plate 2 of the push plate is reduced.

[0036] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pusher device for improving the utilization rate of a mill pusher, said pusher device comprising a pusher frame and a wear plate arranged on the working face of the pusher frame, characterized in that, The wear plate is provided with N wear lining plates in the advancing direction of the steel plate, N groups of shaft systems corresponding to the wear lining plates are arranged in the push plate frame, N is a natural number greater than 1, the working shaft end of each group of shaft systems is connected with the corresponding wear lining plate, and the adjacent shaft systems are connected through a linkage mechanism to realize rotation in the same direction. The N groups of shaft systems include one group of driving shaft systems and N-1 groups of driven shaft systems, a driving motor is arranged on the push plate frame, and the driving motor is connected with the driving shaft systems through a transmission mechanism and a Geneva mechanism.

2. The pusher plate device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 1, characterized in that, The working shaft end of each group of shaft systems away from the wear lining plate is provided with a push-pull cylinder, the piston rod of the push-pull cylinder is in the pushed-out state, the transmission path of the linkage mechanism and the Geneva mechanism is closed, the working shafts in the shaft systems are intermittently rotated, and the angle adjustment of the wear lining plate is realized; and the piston rod of the push-pull cylinder is in the retracted state, the transmission path of the linkage mechanism and the Geneva mechanism is disconnected, and the working shafts in the shaft systems stop rotating.

3. The pusher plate device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 2, characterized in that, The push-pull cylinder is connected with the oil pipe through a rotary joint.

4. The pusher plate device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 1, characterized in that, The transmission mechanism includes a transmission shaft arranged in the push plate frame, an output end of the driving motor penetrates into the push plate frame and is provided with a driving gear, and the transmission shaft is provided with a driven gear which can be engaged with the driving gear.

5. The pusher plate device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 1, characterized in that, The Geneva mechanism includes a driving wheel and a driven wheel, the driving wheel is arranged on the transmission shaft of the transmission mechanism, the driven wheel is arranged on the working shaft of the driving shaft system, the driven wheel is provided with M slots, M is a natural number greater than 3, and the working end face of the driving wheel is provided with a pin which can be inserted into the slot of the driven wheel.

6. The pusher plate device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 1, characterized in that, The linkage mechanism includes an intermediate shaft arranged between the adjacent shaft systems, the working shaft of each group of shaft systems is provided with a first transmission gear, and the intermediate shaft is provided with a second transmission gear which can be engaged with the first transmission gear.

7. The pusher plate device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 1, characterized in that, The wear plate is provided with mounting holes corresponding to the wear lining plates, the mounting holes are tapered holes, the cross section of the wear lining plate is a trapezoidal structure, and the large-diameter end of the wear lining plate faces the steel plate side.

8. The pusher device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 1, characterized in that, The wear lining plate is a polygonal structure.

9. The pusher plate device for increasing the utilization rate of the pusher bed of a rolling mill according to claim 1, characterized in that, The horizontal center lines of the N wear lining plates are located at the same height.

10. A push chair characterised in that, The push plate device includes the push plate device of any one of claims 1 to 9. The push plate device includes the push plate device of any one of claims 1 to 9.

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