Tooth jumping and rail falling prevention device of steel moving machine

Abstract

The utility model discloses a gear jumping and rail falling prevention device of a steel moving machine, which comprises a sliding rail arranged on one side, facing the steel moving machine, of a rail device and a guide roller assembly correspondingly arranged on the steel moving machine, and a guide roller horizontally arranged in the guide roller assembly is correspondingly located below the sliding rail. The distance between the guide roller and the sliding rail is smaller than the distance between the wheel rim of the steel moving machine and the vehicle rail. The anti-jumping device is simple in structure and easy to operate, effectively prevents the steel moving machine from jumping and falling off a rail, and ensures long-term safe and stable operation of the steel moving machine.

Description

Technical Field

[0001] This utility model relates to a continuous casting steel transfer machine, specifically a device for preventing tooth skipping and track derailment in the steel transfer machine. Background Technology

[0002] The billet transfer car (also known as the billet transfer car, etc.) is a commonly used piece of equipment in multi-strand continuous casting machines for bidirectional billet ejection of small square billets. Its main purpose is to push the billets to both sides of the continuous casting machine to the cooling bed or other equipment for the next process. Because the moving claw device of the billet transfer car is located on one side of the car, when the car pushes multiple billets at once, the overall center of gravity of the car becomes unstable, which can easily lead to tilting, derailment, and jamming. This can cause the billet transfer car to run off the track, resulting in production accidents and equipment accidents. In severe cases, the billet transfer car can even fall off, which seriously affects production operations.

[0003] Currently, there are many solutions for billet transfer cars and equipment to prevent them from slipping off the rails and losing teeth. However, they all have their own problems and cannot simultaneously solve the technical problems of derailment, track slippage, and tooth skipping that occur during the production operation of billet transfer cars. In addition, the more commonly used bidirectional billet transfer cars cause the overall center of gravity of the billet transfer car to constantly change during the process of the lifting and lowering claws pushing the billet, which makes it easier to cause problems such as derailment, track slippage, and tooth skipping.

[0004] Publication No.: CN118122973A A method for preventing derailment of a continuous casting billet transfer car involves installing sensors at both ends of the transfer machine to prevent the billet transfer car from running off the track and to stop its operation before mechanical obstruction occurs. However, since the transfer machine area is a high-temperature radiation zone, the sensors are highly susceptible to failure and damage. Furthermore, in high-efficiency continuous casting production, the stoppage of the billet transfer car would affect the overall continuous casting production.

[0005] Publication No.: CN222370331U A type of billet transfer car for preventing tooth skipping is described. Support frames are installed below the guide wheels on both sides of the billet transfer car, and gears and racks are mounted on the support frames. The gears and racks mesh, effectively preventing the gears and racks from disengaging and misaligning. When the billet transfer car pushes multiple billets, causing the center of gravity of the car to tilt forward, the upper wheels move, and tooth skipping occurs in the meshing area of ​​the lower gear and rack.

[0006] Publication No.: CN216096303U A derailment prevention device for a billet transfer car is disclosed. This device features mounting grooves and rollers on both sides of the billet transfer car, effectively preventing derailment and reducing the risk of wheel slippage. It also facilitates disassembly, assembly, and maintenance. When the billet transfer car operates in a high-temperature environment for an extended period, the rails on both sides may warp, causing changes in the distance between them. This can lead to compression of the mounting grooves and rollers during operation. Summary of the Invention

[0007] The purpose of this utility model is to solve the above-mentioned technical problems and provide a steel transfer machine anti-tooth skipping and anti-rail derailment device that is simple in structure, easy to operate, and can ensure the long-term safe and stable operation of the equipment.

[0008] The technical solution includes a slide rail installed on the side of the track device facing the steel transfer machine, and a guide roller assembly installed on the steel transfer machine. The guide rollers arranged horizontally in the guide roller assembly are located below the slide rail, and the distance between the guide rollers and the slide rail is smaller than the distance between the wheel flange of the steel transfer machine and the rail.

[0009] Preferably, a guide roller groove is formed on the track device below the slide rail along the axial direction of the track device, and the guide roller in the guide roller assembly extends into the guide roller groove.

[0010] Preferably, the guide roller assembly includes a mounting base fixed on the steel transfer machine, a roller shaft, and a guide roller, with the rear section of the roller shaft fixed on the mounting base and the front section fitted with the guide roller.

[0011] Preferably, a bearing is provided between the roller shaft and the guide roller.

[0012] The guide roller has a cap at its front end opening and a groove on its inner wall at the front end. An elastic retaining ring for the hole is installed in the groove, and the circumference of the cap is located below the elastic retaining ring for the hole.

[0013] Preferably, the front end of the roller is equipped with a shaft elastic retaining ring, the outer diameter of which is larger than the inner diameter of the bearing.

[0014] Preferably, the mounting base includes two mounting bodies that are detachably mounted on the steel transfer machine by bolts. The two mounting bodies are parallel and spaced apart. The rear section of the roller shaft is inserted into the mounting body, and the portion located between the two mounting bodies is a limiting section. The outer diameter of the limiting section is larger than the inner diameter of the roller shaft hole of the two mounting bodies.

[0015] Preferably, the bottom of the mounting base is provided with a protective cover that extends to the bottom of the guide roller.

[0016] This invention involves installing a slide rail on the side of the track device facing the steel transfer machine, and installing a guide roller assembly on the steel transfer machine. The guide rollers in the guide roller assembly are positioned below the slide rail, and the distance between the guide rollers and the slide rail is controlled to be less than the distance between the wheel flange and the rail of the steel transfer machine. When the steel transfer car is unstable during the transfer process, and there is a tendency for derailment or tooth skipping, the guide rollers contact the slide rail to limit the movement when the car body tilts forward, thus preventing derailment and tooth skipping. This effectively ensures the stability of the car body, allowing the steel transfer car to operate normally and preventing blockages or stops caused by derailment or tooth skipping. The horizontal arrangement of the rollers, parallel to the wheel rail surface, further effectively prevents derailment and tooth skipping caused by the tilting of the steel transfer machine body, while reducing the occurrence of tooth skipping and derailment, thereby reducing the damage to the wheel flange caused by long-term friction between the wheel flange and the rail.

[0017] This design saves significant maintenance time and costs, effectively ensuring vehicle stability during billet transfer and improving steel transfer efficiency. The guide rollers extend into the guide roller grooves of the track, using these grooves to limit their movement from other directions. The guide rollers have built-in bearings and are equipped with dustproof caps. The use of perforated elastic retaining rings for limiting movement also facilitates disassembly and maintenance. Elastic retaining rings on the shaft limit the bearing position, and together with the dustproof caps, restrict axial movement of the guide rollers, improving stability. Furthermore, the large outer diameter structure of the roller shaft limiting section not only restricts axial movement of the roller shaft but also facilitates disassembly. A protective cover installed below the main body prevents heat radiation from the billet from damaging the roller shaft, guide rollers, and bearings, effectively extending their service life.

[0018] This utility model has a simple structure, is easy to operate, and effectively prevents the steel transfer machine from skipping teeth and derailing, ensuring the long-term safe and stable operation of the steel transfer machine. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the guide roller assembly.

[0021] Figure 3 This is a side view of the guide roller assembly installed on the steel transfer machine.

[0022] Among them, 1-mounting seat, 1.1-mounting body, 1.2-roller shaft hole, 2-roller shaft, 2.1-limiting section, 3-guide roller, 3.1-slot, 4-bearing, 5-elastic retaining ring for hole, 6-cover, 7-elastic retaining ring for shaft, 8-protective cover, 9-slide rail, 10-track device, 10.1-guide roller groove, 13-guide roller assembly, 14-steel transfer machine, 14.1-wheel flange, 15-track. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example 1: See Figure 1 and Figure 2 The track device 10 is provided with a slide rail 9 along the axial direction on the side facing the steel transfer machine 14. A guide roller groove 10.1 is also opened along the axial direction below the slide rail 9. A guide roller assembly 13 is installed on the steel transfer machine 14. The guide roller 3 arranged horizontally in the guide roller assembly 13 extends into the guide roller groove 10.1 and is located directly below the slide rail 9. The distance L1 between the guide roller 3 and the slide rail 9 is smaller than the distance L2 between the wheel flange 14.1 of the steel transfer machine 13 and the rail 15.

[0025] Example 2: Based on Example 1, further details can be found in the following examples. Figure 2 The guide roller assembly 13 includes a mounting base 1, a roller shaft 2, and a guide roller 3. The mounting base 1 is fixed on the steel transfer machine 14. The rear section of the roller shaft 2 is fixed on the mounting base 1, and the front section is fitted with the guide roller 3. The guide roller 3 has a hollow structure and a bearing 4 (such as a deep groove ball bearing GB / T276) is provided between it and the roller shaft 2. The front opening of the guide roller 3 is provided with a cap 6 for dust prevention. The inner wall is provided with an annular groove 3.1, in which a hole elastic retaining ring 5 (such as a standard A-type hole elastic retaining ring GB / T893.1) is installed. The circumference of the cap 6 is located below the hole elastic retaining ring 5. The hole elastic retaining ring 5 can effectively limit the cap 6 and prevent it from falling out. As it is an elastic and standard part, it can also be easily removed and replaced, facilitating the disassembly, assembly, and maintenance of the various components inside the guide roller 3. The front end of the roller 2 is equipped with a shaft elastic retaining ring 7 (such as the standard type A shaft elastic retaining ring GB / T894.1). The outer diameter of the shaft elastic retaining ring 7 is larger than the inner diameter of the bearing 4, which is used to limit the position of the bearing 4. At the same time, together with the end cap 6, it can limit the axial movement of the guide roller 3. The bottom of the mounting base 1 is provided with a protective cover 8 that extends to the bottom of the guide roller 3 to prevent the heat radiation of the steel billet from damaging the guide shaft components and effectively improve the service life of the device.

[0026] Example 3: See Figure 2 and Figure 3 Based on embodiment 2, the mounting base 1 includes two mounting bodies 1.1 that are detachably mounted on the steel transfer machine 13 by bolts. The two mounting bodies 1.1 are parallel and spaced apart. The rear section of the roller shaft 3 is inserted into the two mounting bodies 1.1, and the part located between the two mounting bodies 1.1 is a limiting section 2.1. The outer diameter of the limiting section 2.1 is larger than the inner diameter of the roller shaft hole 1.2 of the two mounting bodies 1.1.

[0027] Work process:

[0028] In this embodiment, the gap L1 between the guide roller 3 and the slide rail 9 is 5mm, which is less than the distance L2 between the wheel flange 14 of the steel transfer car and the rail 15, which is 20mm. During the normal movement of the steel transfer car 14, the guide roller 3 moves stably in the guide roller groove 10.1 and does not contact the wall of the guide roller groove 10.1 or the slide rail 9. This avoids unnecessary wear on the guide roller 3 and the bearing 4, extends their service life, and reduces maintenance costs and replacement / repair time. Only when the steel transfer car 13 experiences a change in center of gravity during the steel transfer process... The car body is unstable and has a tendency to derail or skip teeth. When the car body tilts forward, the guide roller 3 jumps up and contacts the slide rail 9. Due to the distance between the two, the guide roller 3 is limited by the slide rail 9 when it jumps up, and is also limited by the guide roller groove 10.1 from other directions to avoid derailment and skip teeth. This effectively ensures the stability of the car body and allows the steel transfer car 14 to operate normally. It eliminates the blockage or stoppage caused by derailment or skip teeth of the steel transfer car 14, saves a lot of maintenance time and maintenance costs, effectively ensures the stability of the car body during billet transfer, and improves the efficiency of steel transfer.

[0029] The preferred embodiments of the present invention have been described in detail above; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various technical features in any other suitable manner. These simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A device for preventing tooth skipping and track derailment on a steel transfer machine, characterized in that, It includes a slide rail installed on the side of the track device facing the steel transfer machine, and a guide roller assembly installed on the steel transfer machine. The guide rollers arranged horizontally in the guide roller assembly are located below the slide rail. The distance between the guide rollers and the slide rail is smaller than the distance between the wheel flange of the steel transfer machine and the rail.

2. The anti-tooth skipping and anti-rail derailment device for steel transfer machine as described in claim 1, characterized in that, The track device below the slide rail has guide roller grooves along the axial direction of the track device, and the guide rollers in the guide roller assembly extend into the guide roller grooves.

3. The anti-tooth skipping and anti-rail derailment device for a steel transfer machine as described in claim 1 or 2, characterized in that, The guide roller assembly includes a mounting base fixed on the steel transfer machine, a roller shaft, and a guide roller. The rear section of the roller shaft is fixed on the mounting base, and the front section is fitted with the guide roller.

4. The anti-tooth skipping and anti-rail derailment device for a steel transfer machine as described in claim 3, characterized in that, A bearing is provided between the roller shaft and the guide roller.

5. The anti-tooth skipping and anti-rail derailment device for a steel transfer machine as described in claim 4, characterized in that, The guide roller has a cap at its front end opening and a groove on its inner wall at the front end. An elastic retaining ring for the hole is installed in the groove, and the circumference of the cap is located below the elastic retaining ring for the hole.

6. The anti-tooth skipping and anti-rail derailment device for a steel transfer machine as described in claim 5, characterized in that, The front end of the roller is equipped with a shaft elastic retaining ring, the outer diameter of which is larger than the inner diameter of the bearing.

7. The anti-tooth skipping and anti-rail derailment device for a steel transfer machine as described in claim 3, characterized in that, The mounting base includes two mounting bodies that are detachably mounted on the steel transfer machine by bolts. The two mounting bodies are parallel and spaced apart. The rear section of the roller shaft is inserted into the mounting body, and the part located between the two mounting bodies is a limiting section. The outer diameter of the limiting section is larger than the inner diameter of the roller shaft hole of the two mounting bodies.

8. The anti-tooth skipping and anti-rail derailment device for a steel transfer machine as described in claim 3, characterized in that, The mounting base is equipped with a protective cover at its bottom that extends to the bottom of the guide roller.

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