A conveying roller device for surface dressing of steel plates

Abstract

The utility model relates to metallurgical equipment and technical field, a kind of transmission roller way device for steel plate surface dressing. The roller way surface is also provided with silicone material to prevent scratch, and free carrier roller of surface silicone material is also arranged outside the device, which can be used for dressing narrow plate, driven by middle roller way to transport, and can also dress steel plate with width of about 4 meters, and carrier roller can play supporting role;The defect that chain conveyor cannot dress narrow plate and the security risk of dropping plate are solved by adopting triangle design;At the same time, the size of the equipment is reduced by adopting the design of hanging torsion arm hollow shaft of speed reducer, and the surface of narrow plate can be inspected, detected, dressed by the operator at close range;At the same time, the roller way device is designed to replace chain conveyor, and the structure is simpler, easier to maintain and lower in maintenance cost, and the equipment can operate more stably for a longer time.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical equipment and technical field, especially a kind of transmission roller way device for steel plate surface grinding. BACKGROUND

[0002] The original steel plate grinding is on chain conveyor, and it is grinding position equipment for manual steel plate upper surface grinding;Due to original design and equipment layout and other reasons, after chain conveyor is put into operation for a period of time, the situation of chain plate roller serious wear and tear and fall off appears, maintenance personnel timely supplement damaged roller, but replacement cycle cannot keep up with damage situation, maintenance difficulty increases, spare parts cost is high, and chain roller needs to be stopped to replace, seriously affect production operation efficiency;And chain conveyor adopts four chains to run, there is about 1000mm gap between the middle two chains, the event of steel plate falling into gap between grinding narrow plate has appeared, causes safety production hidden danger;At the same time, due to original design structure is complex, chain plate is heavy and tight effect is not good, it is impossible to adjust and tighten due to chain wear and tear and lengthening, when needing to run back and forth, chain folding and breaking event appears due to chain lengthening, increases safety risk, in view of the above situation, it is decided to transform the equipment, considering that existing chain conveyor cannot meet actual production needs, a complete steel plate conveying system must be redeveloped and designed and manufactured, and production process requirements are met.

[0003] Roller way is a kind of plate blank conveying device indispensable for current metallurgical steel enterprise, since the function of traditional conveying roller way is only to convey plate blank to next destination, there is no other function, the purpose of the utility model is to overcome the defects of original equipment design, the roller way device designed and invented has grinding, inspection, detection, identification, reciprocating conveying and other safe operation functions, especially a kind of transmission roller way device for steel plate surface grinding, can meet the conveying roller way device for 30 tons weight different width medium plate upper surface grinding.

[0004] This utility model creatively employs a triangular design to provide a conveyor roller device for grinding the upper surface of steel plates. The roller surface is covered with silicone material to prevent scratches, and free support rollers with silicone material on the outer side of the device are also provided. It can be used for grinding narrow plates, driven by the central roller conveyor, or for grinding steel plates approximately 4 meters wide, where the support rollers provide support. The triangular design solves the shortcomings of chain conveyors in grinding narrow plates and the safety hazard of plates falling off. Simultaneously, the reducer uses a suspended torsion arm hollow shaft design to reduce the size of the equipment, allowing operators to closely inspect, test, and grind the surface of narrow plates. Furthermore, the design uses a roller conveyor device instead of a chain conveyor, resulting in a simpler structure, easier maintenance, lower maintenance costs, and longer stable operating time. It achieves safe operation functions such as grinding, inspection, testing, marking, and transportation, facilitating reliable steel plate grinding, inspection, testing, marking, and transportation by operators, reducing workload, minimizing spare parts and material consumption, improving personnel efficiency, and completely solving the problems mentioned in the background technology, meeting the needs of actual production. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned problems by providing a conveyor roller device for grinding the surface of steel plates.

[0006] The purpose of this utility model is achieved as follows: A conveyor roller device for grinding the surface of steel plates includes a roller support, bearing seats, roller assemblies, a transmission device, and idlers. The roller support is a staggered roller base with a triangular arrangement, located at the bottom. The roller support is welded from steel plates. The mounting reference surface of the roller bearing seats is determined at the bearing seat position. A steel plate connects the bearing seats on both sides in the middle of the roller support, with an 80-100mm gap reserved between the steel plate and the bearing seat base plate. The roller assembly consists of a roller body, roller shaft, bearings, end caps, and through caps. The rollers are designed as a hollow structure, and the roller body is a cylindrical structure. The roller shaft is a shaft that supports the roller body through support rings. The roller shaft is installed inside the bearing seats through bearings at both ends. A through cap is installed on the side of the bearing seat that extends out of the shaft, and an end cap is installed on the closed side. The through caps are installed at both ends of the bearing seat by fixing bolts. The outer surface of the roller body is coated with a silicone layer. The bearing housing is bolted to the precision-machined reference surface of the roller support. The bearing is a self-aligning roller bearing with an oil groove on the outer diameter. One side of the bearing housing is a free end and the other side is a fixed end. A transmission device is installed on the extended shaft side of the fixed end roller. The transmission device is a direct-drive type motor-reducer type. The transmission device is coaxial with the roller assembly and adopts a geared motor-suspended torque arm hollow shaft design. It is installed on one side of the roller assembly to realize the reciprocating operation of the roller assembly. The torque arm bracket is used to position the geared motor. It is connected to the extended shaft side of the fixed end roller assembly through a hollow shaft key. The bearing is axially positioned between the bearing housing and the geared motor through a top sleeve installed on the shaft. The top sleeve is fixedly connected to the roller shaft through a key. At the same time, the transmission device side of the top sleeve is in contact with the hollow shaft of the geared motor. The extended shaft end of the bearing housing is positioned with a nut to realize the connection of the geared motor.

[0007] A support roller is also provided on the closed side of the roller assembly bearing housing.

[0008] The beneficial effects of this utility model are as follows: Compared with the previous chain conveyor, this roller conveyor device can meet the surface grinding and transportation needs of medium and thick plates weighing 30 tons and about 4 meters wide. It realizes safe operation functions such as online grinding, inspection, testing, marking, and reciprocating transportation of steel plates. After the modification, the device has a compact structure, is easy to install, reduces labor intensity, reduces spare parts and material costs, is simple to operate, use and maintain, has a long service life, improves human resources efficiency, and meets the actual production needs.

[0009] After the equipment upgrade, the benefits were compared with those before the upgrade. The annual cost reductions are as follows: 1. Reduced downtime: Monthly cost savings: 5 * 25 * 1000 * 12 = 1.5 million yuan. Explanation: Approximately 5 hours of equipment downtime are reduced per month; based on an hourly steel production of 25 tons / hour and a profit of 1000 yuan per ton of steel, this increases profit by 1.5 million yuan. 2. Annual reduction in spare parts and material procurement: 400 sections of 150mm chain plates (92,000 yuan), 1000 outer rollers of the chain plates (5400 yuan), 200 140*140*40mm nylon blocks of the chain plates (8000 yuan), and 500 NCF203V cylindrical roller bearings (15,000 yuan), totaling 120,400 yuan. Total: Annual cost savings: 1.5 million yuan + 120,400 yuan = 1,620,400 yuan. Attached Figure Description

[0010] The present invention will now be further described with reference to the accompanying drawings.

[0011] Figure 1 These are the three views of this utility model.

[0012] Figure 2 This is a plan view of the device. The top of the diagram is a front view of the layout, and the bottom is a top view.

[0013] Figure 3 This is a partial side view of the plan layout of this device.

[0014] Among them: 1. Idler support, 2. Idler, 3. Roller support, 4. Cover, 5. Bearing housing, 6. Bearing, 7. Roller shaft, 8. Roller body, 9. Through cover, 10. Skeleton seal, 11. Top sleeve, 12. Gear motor, 13. Torque arm support, 14. Roller top surface, 15. Center line of the last roller, 16. Center line of the transition roller shaft, 17. Center line of the roller. Detailed Implementation

[0015] This utility model discloses a conveyor roller device for grinding the surface of steel plates. The device employs a staggered, triangular arrangement, facilitating close-range inspection and grinding of the steel plate surface by operators. The staggered arrangement of the rollers prevents narrow steel plates from falling off during grinding, thus eliminating safety hazards. Additionally, free support rollers with silicone surface material are installed on the outer side of the device. These support rollers can be used for grinding narrow plates (driven by the central roller conveyor) or for grinding steel plates approximately 4 meters wide, providing support. Furthermore, to increase the contact area between the rollers and the steel plate (i.e., the length of the roller surface) and reduce the overall size of the equipment, the transmission device is located on one side of the roller assembly and concentrated in the middle. This utility model achieves safe operation functions including grinding, inspection, testing, marking, and transportation, enabling operators to reliably perform these tasks. It reduces workload, minimizes maintenance costs such as spare parts consumption, improves personnel efficiency, and completely solves the problems mentioned in the background art, meeting the needs of actual production.

[0016] This utility model addresses the problems mentioned in the background art by using a roller conveyor to replace the chain conveyor, thus solving the bottleneck problem in the production line. It realizes a transmission roller conveyor device for steel plate surface grinding, which has safe operation functions such as grinding, inspection and testing, marking, and reciprocating transportation. It facilitates operators to reliably perform steel plate grinding, inspection, testing, marking, and transportation, reduces workload, reduces maintenance costs such as spare parts and materials, improves personnel efficiency, and meets the actual production needs.

[0017] The present invention is implemented using the following technical solution: The present invention provides a conveyor roller device for grinding the surface of steel plates, characterized in that the design adopts a staggered triangular arrangement, which facilitates close-range inspection and grinding of the steel plate surface by operators. Due to the staggered arrangement of the rollers, the safety hazard of narrow steel plates falling off during grinding is eliminated. At the same time, free rollers with silicone material on the surface are also provided on the outside of the device. These rollers can be used to grind narrow plates, driven by the middle roller conveyor, or to grind steel plates with a width of about 4 meters, where the rollers can provide support. In order to increase the contact area between the rollers and the steel plate, i.e., the length of the roller surface, and reduce the overall size of the equipment, the transmission device is set on one side of the roller group and concentrated in the middle.

[0018] The device includes a roller conveyor support, bearing seats, roller assemblies, a transmission device, and idlers. The roller conveyor support is a staggered roller base with a triangular arrangement, located at the bottom of the device. The roller conveyor support is welded from 30mm thick steel plates and then undergoes overall heat treatment to eliminate welding stress. The bearing seats are precision-machined to determine the mounting reference surface. A steel plate connects the bearing seats on both sides in the middle of the roller conveyor support, while leaving a certain space at the bottom to facilitate the laying of electrical cable trays and cable routing. It also includes roller assemblies mounted on the frame and roller surfaces with a rubber coating. The rubber coating eliminates direct contact between the lower surface of the steel plate and the steel roller surface, reducing secondary scratches during grinding, measurement, inspection, and transportation, and stabilizing the surface quality of the steel plate. The roller assembly consists of a roller body... The roller, bearing, end cap, and through cap are connected to the bearing seats at both ends. The roller is designed as a hollow structure. The roller body is a barrel-shaped cylindrical structure with an outer diameter of 400mm and a thickness of 10mm. The roller shaft is supported by a support ring for a shaft with a diameter of 210mm and a length of 1533mm. The roller shaft is installed inside the bearing seats through the bearings at both ends. The side of the bearing seat that extends out of the shaft is equipped with a through cap, and the closed side is equipped with an end cap, which is used to seal the bearing and reduce dust pollution. The through cap is installed at both ends of the bearing seat by fixing bolts. The bearing seat is fixed to the precision-machined reference surface of the roller support with M20 bolts with a length of 230mm. The bearing is a self-aligning roller bearing with an outer diameter oil groove, which can withstand a large load and has good self-aligning performance. It can automatically adjust the tilt or deflection of the shaft caused by the angular error between the shaft and the bearing seat. This type of bearing has a large load capacity, capable of withstanding radial loads as well as bidirectional axial loads, and possesses good impact resistance. The bearing housings on both sides of the roller assembly have one free end and one fixed end, facilitating installation and control of thermal deformation. A transmission device is installed on the extended shaft side of the fixed-end roller. This transmission device is a direct-drive type with a motor and reducer, coaxial with the roller assembly and employing a suspended torque arm hollow shaft design. Installed on one side of the roller assembly, it enables reciprocating operation of the roller assembly, meeting production process requirements. The torque arm bracket is used to position the suspended motor and reducer, preventing damage during operation. The roller extends from the shaft side. The transmission reducer is connected to the fixed end of the roller assembly via a hollow shaft key. The bearing is axially positioned between the bearing housing and the reducer by a top sleeve mounted on the shaft. The top sleeve is fixedly connected to the roller shaft by a key. At the same time, the reducer side of the top sleeve contacts the hollow shaft of the reducer drive, so that there is no relative movement or mutual friction between the bearing inner ring, the top sleeve, the hollow shaft of the reducer, and the roller shaft during rotation. Then, the reducer is positioned by a nut at the extended shaft end to achieve connection. On both sides of the device, there are also support rollers, which are also hollow free rollers. The support rollers are made of steel plates that can be ground to a width of about 4 meters, and the support rollers can play a role in side support.The idler roller bracket is located on the closed side of the roller assembly bearing housing. Adding idler rollers can increase the width of the steel plate to be transported during grinding, thereby increasing production. Since a cover is installed on the protruding shaft side of the roller assembly bearing housing, a skeleton seal needs to be installed on the inner ring of the cover to prevent dust from entering.

[0019] The device consists of 20 sets of roller assemblies and transmission devices, which can be configured and installed according to the length of different steel plates to meet the surface grinding production operations of steel plates of different specifications. At the same time, in order to meet the connection between upstream and downstream processes, the roller conveyor is designed with an elevation of 800mm above the ground, which can realize online inspection, testing, grinding, marking, transportation and other functions, thereby improving work efficiency.

[0020] Because the transmission device of this device adopts a suspended torque arm hollow design, when the motor of the transmission device starts running, it drives the internal mechanism of the transmission device to rotate, and transmits torque to the hollow shaft of the transmission device. The extension shaft of the roller assembly passes through the hollow shaft. The extension shaft of the roller assembly is connected to the hollow shaft through the positioning key installed on the extension shaft of the roller assembly. The torque is transmitted to the hollow shaft and then to the extension shaft of the roller assembly. The extension shaft rotates through the bearings installed on both sides of the shaft, driving the steel plate on the roller body of the roller assembly to move, thus meeting the production needs.

[0021] The above description is only a specific embodiment of the present utility model, but the structural features protected by the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A conveyor roller device for grinding the surface of steel plates, characterized in that: The system includes a roller conveyor support, bearing housings, roller assemblies, a transmission device, and idlers. The roller conveyor support is a staggered roller base with a triangular arrangement. The support is located at the bottom and is welded from steel plates. The mounting reference surface for the roller bearing housings is determined at the bearing housing positions. A steel plate connects the bearing housings on both sides in the middle of the roller conveyor support, with an 80-100mm gap between the steel plate and the bearing housing base plate. The roller assembly consists of a roller body, roller shaft, bearings, end caps, and through caps. The rollers are designed as a hollow structure, with the roller body being a cylindrical barrel shape. The roller shaft supports the roller body via support rings and is mounted inside the bearing housings via bearings at both ends. A through cap is installed on the side of the bearing housing extending from the shaft, and an end cap is installed on the closed side. The through caps are fixed to both ends of the bearing housing with bolts. The outer surface of the roller body is coated with a silicone layer. The bearing seat is bolted to the precision-machined reference surface of the roller conveyor support. The bearing is a self-aligning roller bearing with an oil groove on the outer circle. One side of the bearing seat is a free end and the other side is a fixed end. A transmission device is installed on the extended shaft side of the fixed end roller. The transmission device is a direct-drive type motor-reducer type. The transmission device is coaxial with the roller assembly and adopts a geared motor-suspended torque arm hollow shaft design. It is installed on one side of the roller assembly to realize the reciprocating operation of the roller group. The torque arm bracket is used to position the geared motor. It is connected to the extended shaft side of the fixed end roller of the roller assembly through a hollow shaft key. The bearing is axially positioned between the bearing seat and the geared motor through a top sleeve installed on the shaft. The top sleeve is fixedly connected to the roller shaft through a key. At the same time, the transmission device side of the top sleeve is in contact with the hollow shaft of the geared motor. The extended shaft end of the bearing seat is positioned with a nut to realize the connection of the geared motor.

2. The conveyor roller device for grinding the surface of steel plates according to claim 1, characterized in that: A support roller is also provided on the closed side of the roller assembly bearing housing.

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