Insulation supporting structure of intermediate frequency furnace conveying carrier roller

Abstract

The utility model discloses an insulation supporting structure of an intermediate frequency furnace conveying carrier roller, and relates to the field of mechanical equipment. The device comprises a conveying roller erected above a base, an insulating spacer is attached to the bottom face of a support, and the insulating spacer is attached to the top face of the base; the bolt is sleeved with bakelite. Supporting bearings are assembled on the tops of the supports through bearing seats, insulating sleeves are arranged in the supporting bearings in a sleeved mode, and the insulating sleeves are connected with the two ends of the conveying rollers in an inserted mode respectively. The insulating sleeves are sleeved with hollow air outlet rings, the air outlet rings are fixedly installed at the ends, away from the conveying rollers, of the outer walls of the bearing seats, air outlet holes are formed in the inner ring walls of the air outlet rings, and the outer side walls of the air outlet rings communicate with air inlet pipes. The conveying roller has the advantages that a plurality of insulation isolation belts are arranged on the supporting structure of the conveying roller, the electric conduction phenomenon is restrained, and therefore the conveying roller and the supporting structure of the conveying roller are protected and prevented from being damaged by electric shock, the service life of the conveying roller and the supporting structure of the conveying roller is prolonged, the failure rate is reduced, and use safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to mechanical equipment, relates to the field of conveying equipment, and particularly relates to an insulating support structure for a conveying roller of an intermediate frequency furnace. Background Technique

[0002] When processing small-diameter steel balls, due to the small diameter of the steel, after being heated to the set temperature in a natural gas heating furnace, the steel is prone to serious bending and deformation due to uneven heating and other reasons, and often cannot be pushed out of the heating furnace, which is not conducive to the secondary processing of the steel. Therefore, a more convenient and fast intermediate frequency heating method is adopted. By using the alternating magnetic field generated by the induction coil, eddy currents are generated inside the steel, realizing rapid and uniform heating, reducing the thermal stress caused by uneven heating, and reducing the risk of bending and deformation of the steel.

[0003] During the process of using the conveying roller to convey the steel rod into the intermediate frequency furnace, due to the conductivity of the induction intermediate frequency power supply, the conveying roller and the conveyed steel rod are conductive, resulting in electric shock conductive traces on the surface of the steel plate, causing mottled pit traces on the outer surface of the processed steel balls, affecting the appearance quality of the steel balls, and producing a large number of defective and substandard steel balls. Secondly, electric shock traces are generated on the conveying roller. Under the action of electric shock damage, the conveying roller is severely worn, affecting the conveying effect of the steel rod, and it needs to be maintained and replaced, reducing the production efficiency. Moreover, there is a conductive phenomenon between the bearings assembled at both ends of the conveying roller and the fixed base, causing the bearing steel balls, the bearing cage, and the inner wall of the outer ring of the bearing to be conductive, resulting in frequent bearing damage, increasing the equipment maintenance frequency, raising the production cost while reducing the production efficiency. Content of the Utility Model

[0004] The utility model provides an insulating support structure for a conveying roller of an intermediate frequency furnace to solve the technical problem that the conveying roller and the bracket supporting it are conductive and are easily damaged by electric shock, affecting the service life and reducing the production efficiency. By providing multiple insulating isolation bands in the support structure of the conveying roller, the conductive phenomenon is suppressed, thereby protecting the conveying roller and its support structure, avoiding electric shock damage, prolonging its service life, reducing the failure rate, and ensuring the use safety.

[0005] The technical solution adopted by the utility model is as follows: An insulating support structure for a conveying idler of an intermediate frequency furnace is provided, which includes a base and a conveying roller arranged above the base. Insulating gaskets are attached to the bottom surfaces of the brackets on both sides in the length direction of the conveying roller. The brackets are fastened and fixed to both ends of the base by bolts, and the insulating gaskets are attached to the top surface of the base; an insulating bakelite is sleeved outside the bolts, and the insulating bakelite is sleeved and assembled with the brackets and the insulating gaskets, and the bottom surface of the insulating bakelite is flush with the bottom surface of the insulating gasket; support bearings are assembled on the tops of the brackets through bearing seats, insulating sleeves are sleeved inside the support bearings, both ends of the insulating sleeves penetrate through the support bearings and protrude from the outer wall of the bearing seat, and the insulating sleeves are respectively inserted into both ends of the conveying roller; hollow air outlet rings are sleeved outside the insulating sleeves, the air outlet rings are fixedly installed at one end of the outer wall of the bearing seat away from the conveying roller, air outlet holes are formed in the inner ring walls of the air outlet rings, and air inlet pipes are connected to the outer side walls of the air outlet rings.

[0006] The bracket is fastened and fixed to the base by bolts, and an insulating gasket is attached to the bottom surface of the bracket. After the bracket is tightened, the insulating gasket is attached to the base, and the insulating gasket insulates and isolates the bracket and the base to prevent electric shock damage caused by conduction. The bolts used to fix the bracket are sleeved with insulating bakelite, which insulates and isolates the bolts to ensure their safety in use. The support bearings assembled on the tops of the brackets through bearing seats have insulating sleeves sleeved inside. After the insulating sleeves are inserted into the conveying roller, they support the conveying roller, thereby insulating and isolating the conveying roller from the support bearings to prevent electric shock damage to the support bearings. Moreover, the air outlet rings arranged outside the insulating sleeves blow the air flow in the external air source to the periphery of the insulating sleeves to promote air flow, dissipate heat and cool down the insulating sleeves, improve the insulation performance of the insulating sleeves, thereby enhancing the protection effect on the support bearings and ensuring safety in use.

[0007] To further optimize this technical solution, a supporting wheel is sleeved in the middle of the outer side wall of the conveying roller, and a concave surface is provided on the outer side wall of the supporting wheel.

[0008] When the supporting wheel supports and conveys steel, the concave surface of the supporting wheel can prevent the steel from shaking and falling off the supporting wheel, ensuring the stability and safety of steel conveying.

[0009] To further optimize this technical solution, assembly points protruding outward are provided at the front and rear ends of the bottom of the bracket. The bottom surfaces of the assembly points are flush with the bottom surface of the bracket, and the insulating gaskets are attached to the assembly points. The insulating bakelite is arranged on the assembly points and penetrates downward through the insulating gaskets, and is flush with the bottom surface of the insulating gaskets.

[0010] The assembly points protruding outward at the bottom of the bracket provide installation positions for the bolts and the insulating bakelite outside them. The assembly points are flush with the bottom surface of the bracket, making them form an integral body with the bracket, increasing the contact area with the base, ensuring the installation strength, and the insulating gaskets are attached to the assembly points to ensure the insulation performance.

[0011] To further optimize this technical solution, through holes are provided on both the assembly points and the insulating gaskets. The positions and specifications of the through holes match, and the insulating bakelite is inserted into the through holes.

[0012] The through holes on the assembly points and the insulating gaskets facilitate the insertion of the insulating bakelite thereinto and the assembly of bolts, and are flexible and simple to use.

[0013] To further optimize this technical solution, anti-loosening gaskets are sleeved outside the bolts, and the two ends of the anti-loosening gaskets are respectively abutted against the end face of the bolt head and the end face of the insulating bakelite.

[0014] After the bolts are tightened, the anti-loosening gaskets sleeved outside the bolts are abutted against the bolt head and the end face of the insulating bakelite, thereby generating a reaction force to make the bolts tightly meshed with the base threads, avoiding bolt loosening, and ensuring the assembly strength and use reliability.

[0015] To further optimize this technical solution, key grooves are provided at both ends of the outer side wall of the conveying roller and on the inner wall of the insulating sleeve. The positions of the key grooves correspond, and an assembly key is inserted into the key grooves in a matching manner.

[0016] Key grooves are provided on the conveying roller and the insulating sleeve, and the assembly key disposed in the key grooves facilitates the transmission of torque between the conveying roller and the insulating sleeve, ensuring the smooth rotation of the conveying roller and the conveying effect of the steel.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. When the bracket is assembled with the base, the insulating gasket on the bottom surface of the bracket fits with the base, thereby insulating and isolating the base from the bracket to avoid electric shock damage caused by conduction. Moreover, the assembly points on the bracket provide installation positions for the bolts, and the insulating bakelite is sleeved outside the bolts to insulate and isolate the bolts to avoid damage to the bolts by the motor, improving the use safety. The through holes provided on the assembly points and the insulating gaskets are used for the insertion of the insulating bakelite, and are flexible and simple to use;

[0019] 2. The insulating sleeve sleeved inside the support bearing assembled on the top of the bracket is inserted into the conveying roller to support the conveying roller. Moreover, matching key grooves are provided at both ends of the conveying roller and on the inner wall of the insulating sleeve, and an assembly key is inserted into the key grooves in a matching manner, facilitating the transmission of torque between the conveying roller and the sleeve, ensuring the smooth rotation of the conveying roller for conveying the steel, and making the conveying more labor-saving and convenient;

[0020] 3. The insertion of the insulating sleeve into the conveying roller insulates the bearing housing and the supporting bearing, preventing them from being damaged by electric shock. The air outlet ring fixedly installed on the outer wall of the bearing housing is sleeved outside the insulating sleeve. After the external air source enters the air outlet ring through the air inlet pipe, it is blown onto the surface of the insulating sleeve through the air outlet holes, cooling the insulating sleeve to ensure its insulating performance, thereby enhancing the protection performance of the supporting bearing.

[0021] 4. The conveying roller conveys steel through the supporting wheels sleeved on its outer side wall. The outer side wall of the supporting wheel is provided with a concave surface, which prevents the steel from swinging on the supporting wheel and falling off the supporting wheel, ensuring the stability and reliability of the steel conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the insulating support structure of this embodiment;

[0023] Figure 2 is a schematic cross-sectional structural diagram of the bracket of this embodiment;

[0024] Figure 3 is a schematic assembly structural diagram of the bracket and the bearing housing of this embodiment;

[0025] Figure 4 is a schematic structural diagram of the bearing housing and the air outlet ring of this embodiment;

[0026] Figure 5 is a schematic cross-sectional structural diagram of the assembly of the conveying roller, the insulating sleeve and the supporting bearing of this embodiment;

[0027] Figure 6 is a schematic disassembled structural diagram of the conveying roller and the insulating sleeve of this embodiment.

[0028] In the figure, 1. Base; 2. Conveying roller; 201. Supporting wheel; 2011. Concave surface; 3. Bracket; 301. Assembly point; 4. Insulating gasket; 5. Insulating bakelite; 6. Bearing housing; 7. Supporting bearing; 8. Insulating sleeve; 9. Air outlet ring; 901. Air outlet hole; 902. Air inlet pipe; 10. Through hole; 11. Anti-drop gasket; 12. Keyway; 13. Assembly key. DETAILED DESCRIPTION OF THE EMBODIMENT

[0029] The present utility model will be further described in detail below with reference to the drawings and the specific embodiments.

[0030] Please refer to the attached Figures 1-3, an insulating support structure for a conveying roller of an intermediate frequency furnace, comprising a base 1. Above the base 1, a conveying roller 2 is erected. At both ends in the length direction of the conveying roller 2, there are brackets 3. The brackets 3 are fastened and fixed to the base 1 by bolts. An insulating gasket 4 is attached to the bottom surface of the bracket 3, and the insulating gasket 4 is attached to the top surface of the base 1. The insulating gasket 4 realizes the insulating isolation between the bracket 3 and the base 1. At the front and rear ends of the bottom of the bracket 3, there are outwardly protruding assembly points 301. The assembly points 301 provide installation positions for the bolts. The assembly points 301 are flush with the bottom surface of the bracket 3, so that the assembly points 301 and the bracket 3 are integrated. The insulating gasket 4 is attached to the assembly points 301. When the bolt is threadedly connected to the base 1 through the assembly points 301, through holes 10 are provided on both the assembly points 301 and the insulating gasket 4. The positions and specifications of the through holes 10 match, so that the bolt can pass through the through holes 10 and be tightened and fixed to the base 1;

[0031] Please refer to the attached Figure 2 attachment Figure 3 , an insulating bakelite 5 is sleeved outside the bolt. The insulating bakelite 5 is an electrical insulating material obtained by compound processing of a polymer synthetic material and a wood substrate, and has excellent insulation, wear resistance, corrosion resistance, and mechanical strength and other characteristics. The insulating bakelite 5 is inserted into the through holes 10 on the assembly points 301 and the insulating gasket 4. The bottom surface of the insulating bakelite 5 is flush with the bottom surface of the insulating gasket 4. The insulating bakelite 5 insulates the bolt and does not affect the use of the insulating gasket 4, ensuring the reliability of use;

[0032] Please refer to the attached Figures 3-6 , a bearing seat 6 is installed at the top of the bracket 3. A support bearing 7 is assembled in the bearing seat 6. An insulating sleeve 8 is sleeved inside the support bearing 7. Both ends of the insulating sleeve 8 penetrate through the support bearing 7 and protrude from the outer wall of the bearing seat 6. The insulating sleeve 8 is respectively inserted into both ends of the conveying roller 2 to support the conveying roller 2. Key grooves 12 are provided at both ends of the conveying roller 2 and on the inner wall of the insulating sleeve 8. The positions of the key grooves 12 correspond. An assembly key 13 is inserted into the key grooves 12 in a matching manner. The assembly key 13 realizes the coaxial connection between the conveying roller 2 and the insulating sleeve 8, and facilitates the torque transmission between the insulating sleeve 8 and the conveying roller 2. The conveying roller 2 rotates along the support bearing 7 through the insulating sleeve 8, reducing the resistance of steel material conveying. By sleeving a sprocket on the side of the outer wall of the insulating sleeve 8 away from the conveying roller 2 and connecting it with a chain, the synchronous drive of the conveying roller 2 is realized, so that it rotates along the support bearing 7, thereby driving the steel material into the intermediate frequency furnace to perform intermediate frequency heating on the steel material, ensuring the smoothness of use. The insulating isolation between the insulating sleeve 8 and the conveying roller 2 avoids electric shock damage to the support bearing 7, ensuring the safety of use;

[0033] Please refer to the attached Figure 1 attachment Figures 4-5When the insulating sleeve 8 rotates along the support bearing 7, a hollow air outlet ring 9 is sleeved on the outside of the insulating sleeve 8. The air outlet ring 9 is fixedly installed on the end of the outer wall of the bearing seat 6 away from the conveying roller 2. A plurality of air outlet holes 901 are opened on the inner ring wall of the air outlet ring 9 along the circumferential direction. The outer wall of the air outlet ring 9 is connected to an air inlet pipe 902. The air inlet pipe 902 is connected to an external air source such as an air pump. The air pump delivers the airflow to the air outlet ring 9 and blows the outer surface of the insulating sleeve 8 straight through the air outlet holes 901, thereby performing heat dissipation treatment on the outer surface of the insulating sleeve 8, reducing its temperature, improving its insulation performance, and ensuring the insulation protection effect of the insulating sleeve 8 and the support shaft;

[0034] Please see the attached Figure 1 When the conveying roller 2 conveys steel, a supporting wheel 201 is mounted in the middle of its outer wall. The outer wall of the supporting wheel 201 is provided with an inner concave surface 2011. The steel is placed on the inner concave surface 2011 of the supporting wheel 201 for conveying. The inner concave surface 2011 prevents the steel from falling off the supporting wheel 201, thereby ensuring the reliability of steel transportation.

[0035] The working principle of the insulating support structure of the conveying roller of the medium frequency furnace is as follows: when the bracket 3 is tightened and fixed on the base 1 by bolts, the insulating gasket 4 at its bottom fits with the base 1, thereby insulating and isolating the bracket 3 from the base 1, and the protruding assembly point 301 set at the bottom of the bracket 3 provides an installation position for the bolt, and a through hole 10 is opened on the assembly point 301 and the insulating gasket 4 for bolt assembly. The outer sleeve of the bolt is provided with an insulating bakelite 5, and the insulating bakelite 5 is plugged into the through hole 10. The insulating bakelite 5 insulates the bolt, and the bolt passes through the insulating bakelite 5 and is threadedly connected to the base 1. The bracket 3 is tightened and fixed on the base 1 to ensure its firmness in use. The support bearing 7, assembled through the bearing seat 6 at the top of the bracket 3, is fitted with an insulating sleeve 8. The insulating sleeve 8 is respectively plugged into the two ends of the conveyor roller 2 to support the conveyor roller 2 and insulate the conveyor roller 2. Key slots 12 are provided on the side walls of the conveyor roller 2 and the inner wall of the insulating sleeve 8. The key slots 12 are equipped with assembly keys 13 to achieve torque transmission, making the conveyor roller 2 rotate effortlessly and smoothly, ensuring smooth steel transportation. Furthermore, an air outlet ring 9 is fixedly mounted on the end surface of the bearing seat 6 away from the conveyor roller 2 and is sleeved on the outside of the insulating sleeve 8. The air outlet ring 9 is connected to an external air source via an air inlet pipe 902, allowing air flow to dissipate heat from the insulating sleeve 8, ensuring the insulation performance of the insulating sleeve 8. This improves the insulation protection effect of the support bearing 7, ensures safe use, reduces the frequency of equipment failures and repairs, improves production efficiency, reduces direct production and maintenance costs, and increases the yield rate of steel balls.

Claims

1. An insulating support structure for a conveying idler of an intermediate frequency furnace, comprising a base (1) and a conveying roller (2) mounted above the base (1), characterized in that: On both sides of the conveying roller (2) in the length direction, brackets (3) are provided. An insulating gasket (4) is attached to the bottom surface of the bracket (3). The bracket (3) is fixed to both ends of the base (1) by tightening bolts, and the insulating gasket (4) is attached to the top surface of the base (1); an insulating bakelite (5) is sleeved outside the bolt. The insulating bakelite (5) is sleeved and assembled with the bracket (3) and the insulating gasket (4), and the bottom surface of the insulating bakelite (5) is flush with the bottom surface of the insulating gasket (4); support bearings (7) are assembled on the tops of the brackets (3) by means of bearing seats (6). Insulating sleeves (8) are sleeved inside the support bearings (7). Both ends of the insulating sleeve (8) penetrate through the support bearing (7) and protrude from the outer wall of the bearing seat (6), and the insulating sleeves (8) are respectively inserted into both ends of the conveying roller (2); hollow air outlet rings (9) are sleeved outside the insulating sleeves (8). The air outlet rings (9) are fixedly installed at one end of the outer wall of the bearing seat (6) away from the conveying roller (2), and air outlet holes (901) are formed in the inner ring walls of the air outlet rings (9). An air inlet pipe (902) is connected to the outer side wall of the air outlet ring (9).

2. The insulating support structure of the conveying idler for the intermediate frequency furnace according to claim 1, characterized in that: A supporting roller (201) is sleeved in the middle of the outer side wall of the conveying roller (2). An inner concave surface (2011) is provided on the outer side wall of the supporting roller (201).

3. The insulating support structure of the conveying idler for the intermediate frequency furnace according to claim 1, characterized in that: At the front and rear ends of the bottom of the bracket (3), outwardly protruding assembly points (301) are provided. The bottom surface of the assembly point (301) is flush with the bottom surface of the bracket (3), and the insulating gasket (4) is attached to the assembly point (301). The insulating bakelite (5) is arranged on the assembly point (301) and penetrates downward through the insulating gasket (4) and is flush with the bottom surface of the insulating gasket (4).

4. The insulating support structure of an intermediate frequency furnace conveying idler according to claim 3, characterized in that: Through holes (10) are provided on both the assembly point (301) and the insulating gasket (4). The positions and specifications of the through holes (10) are matched, and the insulating bakelite (5) is inserted into the through hole (10).

5. An insulating support structure for a conveying idler of an intermediate frequency furnace according to claim 1, characterized in that: Anti-loosening gaskets (11) are sleeved outside the bolts. Both ends of the anti-loosening gasket (11) are respectively abutted against the end face of the bolt head and the end face of the insulating bakelite (5).

6. An insulating support structure for a conveying idler of an intermediate frequency furnace according to claim 1, characterized in that: Key grooves (12) are formed in both ends of the outer side wall of the conveying roller (2) and the inner wall of the insulating sleeve (8). The positions of the key grooves (12) correspond to each other, and assembly keys (13) are inserted into the key grooves (12) in a matching manner.

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