Supporting carrier roller of disc driving cooling bed

Abstract

The utility model discloses a supporting carrier roller of a disc driving cooling bed, which belongs to the technical field of steel plate manufacturing equipment and comprises a transmission gear motor, a transmission shaft, a plurality of supporting carrier roller assemblies, a plurality of supporting carrier roller brackets and a plurality of discs. The plurality of discs are fixedly arranged on the transmission shaft respectively, the plurality of supporting carrier roller assemblies are arranged in the plurality of supporting carrier roller brackets respectively, the plurality of supporting carrier roller assemblies abut against the plurality of discs respectively, and each supporting carrier roller assembly comprises a bearing outer ring, a left side ball, a graphite retainer, a right side ball and a pin shaft. The bearing outer ring abuts against the side wall of the disc, the bearing outer ring is arranged outside the graphite retainer, and retaining grooves are formed in the two sides of the graphite retainer respectively. According to the carrier roller, the graphite retainer and the two rows of balls are used, so that the bearing capacity of the carrier roller is improved, oil does not need to be added for lubrication, and the graphite retainer is resistant to high temperature and has a lubricating effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel plate manufacturing equipment, and in particular relates to a disc-type active cooling bed support roller. Background Technology

[0002] The disc-type active cooling bed is one of the main pieces of equipment in a steel plate plant, belonging to the category of medium and heavy plate cooling beds. Its main function is to uniformly and naturally air-cool medium and heavy plates after high-temperature straightening. Its main body consists of several roller shafts, each of which is driven by an individual motor. Each shaft is equipped with a certain number of rollers. The rotation of the rollers drives the steel plate forward smoothly, allowing the steel plate to be slowly cooled during the movement.

[0003] Currently, the most common support rollers on the market consist of two bearings mounted on a pin shaft to achieve rotation. There are also inner and outer spacers between the two bearings. Additionally, lubrication holes are required on the shaft for periodic lubrication of the pin shaft. However, due to the high temperature of the conveyed steel plate, the lubricating oil dries out easily. If the lubrication of one of the two bearings fails, the roller will seize up, leading to scratches on the lower surface of the steel plate, misalignment of the drive shaft, and other malfunctions, which is very detrimental to the cooling of the steel plate.

[0004] To address this issue, we propose a disc-based active cooling bed support roller. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a disc-driven active cooling bed support roller.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A disc-driven active cooling bed support roller includes a transmission geared motor, a transmission shaft, several support roller assemblies, several support roller brackets, and several discs. The output end of the transmission geared motor is fixedly connected to the transmission shaft. The several discs are respectively fixedly mounted on the transmission shaft. The several support roller assemblies are respectively mounted in the several support roller brackets and abut against the several discs. Each support roller assembly includes a bearing outer ring, left-side balls, a graphite cage, right-side balls, and a pin. The bearing outer ring abuts against the side wall of the disc and is located outside the graphite cage. The graphite cage has retaining grooves on both sides. A row of left-side balls is located in the left retaining groove, and a row of right-side balls is located in the right retaining groove. The pin is located inside the graphite cage, and both ends of the pin pass through both sides of the support roller bracket.

[0008] Preferably, the bearing outer ring is provided with two retaining rings, one of which abuts against the left ball sidewall and the other of which abuts against the right ball sidewall.

[0009] Preferably, bushings are provided on both sides of the outer ring of the bearing, and the two bushing sidewalls abut against the two retaining ring sidewalls respectively, and the pin sidewall is rotatably connected to the inner wall of the bushing.

[0010] Preferably, the pin shaft sidewall has a limiting hole, a pin is inserted into the limiting hole, and the pin sidewall abuts against the sidewall of the supporting roller bracket.

[0011] Preferably, the left ball bearing and the right ball bearing are the same size, and the diameter of the left ball bearing is 21mm.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] By using a graphite cage and two rows of balls in this application, the load-bearing capacity of the idler roller is improved, and no oil lubrication is required. The graphite cage is both high temperature resistant and has a lubricating effect. This cage can isolate the balls and prevent friction damage between the balls. At the same time, the graphite material can also lubricate the balls, the inner ring of the idler roller, and the pin, without the need to add additional lubricating oil. Furthermore, the graphite cage is relatively high temperature resistant, withstanding 300 degrees Celsius, so it will not deform due to prolonged exposure to high temperatures during the cooling process of the steel plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structural connection of the support roller assembly in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the left ball bearing, right ball bearing, graphite cage, and pin in this utility model.

[0017] In the diagram: 1. Drive geared motor; 2. Drive shaft; 3. Support roller assembly; 4. Support roller bracket; 5. Disc; 6. Bearing outer ring; 7. Left ball bearing; 8. Graphite cage; 9. Right ball bearing; 10. Pin; 11. Retaining groove; 12. Retaining ring; 13. Bushing; 14. Restricting hole; 15. Pin rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figure 1 - Figure 3 As shown, a disc-driven active cooling bed support roller includes a transmission geared motor 1, a transmission shaft 2, several support roller assemblies 3, several support roller brackets 4, and several discs 5. The output end of the transmission geared motor is fixedly connected to the transmission shaft 2. The several discs 5 are respectively fixedly mounted on the transmission shaft 2, and the several support roller assemblies 3 are respectively mounted in the several support roller brackets 4, with each support roller assembly 3 abutting against the several discs 5. An active cooling bed typically has more than 800 bed surface transmission shafts 2, and each bed surface transmission shaft 2 assembly is supported by 6 support roller assemblies 3. An active cooling bed consists of at least 4800 support roller assemblies. During operation, the transmission geared motor 1 drives the transmission shaft 2 and the discs 5 to rotate. The steel plate is driven by the discs 5 to move to the next disc 5, and the transported steel plate moves forward. The temperature of the steel plate that needs to be cooled is generally between 200 and 500 degrees Celsius, which is relatively high. Therefore, the temperature of the disc 5, which is in direct contact with the steel plate, will also rise. At the same time, the outer ring 6 of the bearing, which is in direct contact with the disc, as well as the left ball 7 and the right ball 9, which are in direct contact with the outer ring 6, will all be affected by the high temperature.

[0020] The support roller assembly 3 includes a bearing outer ring 6, left-side balls 7, a graphite cage 8, right-side balls 9, and a pin 10. The bearing outer ring 6 abuts against the side wall of the disc 5. The bearing outer ring 6 is located outside the graphite cage 8. Retaining grooves 11 are respectively opened on both sides of the graphite cage 8. A row of left-side balls 7 are respectively located in the left-side retaining groove 11, and a row of right-side balls 9 are respectively located in the right-side retaining groove 11. The graphite cage 8 can isolate the balls and prevent friction damage between the balls. Graphite can also provide lubrication between the balls and the inner ring of the roller and the pin 10 in common roller assemblies on the market, without the need for additional lubricating oil. In addition, graphite material is more resistant to high temperatures, up to 300 degrees Celsius, so it is not afraid of the cooling of steel plates.

[0021] The outer ring 6 of the bearing has two retaining rings 12 inside. One retaining ring 12 abuts against the side wall of the left ball 7, and the other retaining ring 12 abuts against the side wall of the right ball 9. The left ball 7 and the right ball 9 have the same size. The diameter of the left ball 7 is 21mm. The left ball 7 and the right ball 9 are manufactured and assembled separately, so the procurement process is simple and can be ordered directly from the bearing manufacturer. At the same time, the assembly precision is high. The acceptance precision of each bearing before leaving the factory is much higher than the assembly precision of the machining plant, which is more convenient for the cooling work of the cooling bed.

[0022] The outer ring 6 of the bearing is provided with bushings 13 on both sides. The side walls of the two bushings 13 abut against the side walls of the two retaining rings 12 respectively. The side wall of the pin 10 is rotatably connected to the inner wall of the bushing 13.

[0023] The pin 10 is located inside the graphite retainer 8. The two ends of the pin 10 pass through the two sides of the support roller bracket 4 respectively. The side wall of the pin 10 is provided with a limiting hole 14. A pin 15 is inserted into the limiting hole 14. The side wall of the pin 15 abuts against the side wall of the support roller bracket 4. The pin 10 in this application directly replaces the pin 10 and bearing inner ring in the commonly used roller assembly on the market. At the same time, the pin 10 can also serve as the bearing inner ring.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A disc-driven active cooling bed support roller, comprising a transmission geared motor (1), a transmission shaft (2), a plurality of support roller assemblies (3), a plurality of support roller brackets (4), and a plurality of discs (5), wherein the output end of the transmission geared motor is fixedly connected to the transmission shaft (2), the plurality of discs (5) are respectively fixedly disposed on the transmission shaft (2), the plurality of support roller assemblies (3) are respectively disposed in the plurality of support roller brackets (4), and the plurality of support roller assemblies (3) abut against the plurality of discs (5), characterized in that, The support roller assembly (3) includes a bearing outer ring (6), left ball bearings (7), a graphite retainer (8), right ball bearings (9), and a pin (10). The bearing outer ring (6) abuts against the side wall of the disc (5). The bearing outer ring (6) is located outside the graphite retainer (8). Retaining grooves (11) are respectively opened on both sides of the graphite retainer (8). A row of left ball bearings (7) is respectively located in the left retaining groove (11), and a row of right ball bearings (9) is respectively located in the right retaining groove (11). The pin (10) is located inside the graphite retainer (8). The two ends of the pin (10) pass through both sides of the support roller bracket (4).

2. A support roll for a disc (5) active bed according to claim 1, characterized in that, The bearing outer ring (6) is provided with two retaining rings (12), one of which abuts against the side wall of the left ball (7), and the other retaining ring (12) abuts against the side wall of the right ball (9).

3. A support roll for a disc (5) active bed according to claim 2, characterized in that, The outer ring (6) of the bearing is provided with bushings (13) on both sides. The side walls of the two bushings (13) abut against the side walls of the two retaining rings (12) respectively. The side wall of the pin (10) is rotatably connected to the inner wall of the bushing (13).

4. The disc (5) active cooling bed support roller according to claim 1, characterized in that, The pin (10) has a limiting hole (14) on its side wall, and a pin (15) is inserted into the limiting hole (14). The side wall of the pin (15) abuts against the side wall of the support roller bracket (4).

5. A support roll for a disc (5) active bed according to claim 1, characterized in that, The left ball (7) and the right ball (9) are the same size, and the diameter of the left ball (7) is 21mm.

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