Large gear transmission roller bottom type heating device

Abstract

The utility model provides a large gear transmission roller bottom type heating device, and belongs to the technical field of heating furnaces. The large gear transmission roller bottom type heating device comprises a furnace body, heat-resistant cotton, a transmission roller assembly, a supporting base, a first bearing, a supporting beam, a mounting base, a driving shaft, a first connecting shaft, a first bevel gear and a second bevel gear. The multiple second bevel gears are arranged on the outer side of the driving shaft in a sleeving mode at the same time, the multiple second bevel gears are engaged with the multiple first bevel gears correspondingly, so that the driving shaft can drive the multiple second bevel gears to rotate, the second bevel gears can drive the first bevel gears in an engaged mode, and power is provided for rotating the transmission roller assembly; compared with the mode that the multiple transmission roller assemblies are connected with the multiple driving devices correspondingly, the number of the driving devices can be reduced, and then the production cost of products is reduced. The width of the heat-resistant cotton inner wall is set to be 2.7-5m, so that the effective heating width of the product is 2.7-5m.

Description

A large gear-driven roller bottom heating device Technical Field

[0001] This utility model belongs to the field of heating furnace technology, specifically relating to a large gear-driven roller bottom heating device. Background Technology

[0002] In related technologies, in order to perform heat treatment on a workpiece, the workpiece needs to be placed in a heating furnace and the rollers are rotated so that multiple rollers work together to move the workpiece and complete the heat treatment process.

[0003] Existing technology (authorization announcement number: CN103834791B) discloses a continuous roller quenching cooling system for steel plates, including a water spraying system, a water supply system, a conveying roller system, and a frame lifting system. The working areas of the cooling system sequentially include a transition zone, a high-pressure quenching zone, and a medium-pressure quenching zone. Within the high-pressure and medium-pressure quenching zones, nozzles and conveying rollers are symmetrically arranged vertically along the steel plate. The upper nozzles and upper rollers are fixed to a movable upper frame, and the lower nozzles and lower rollers are fixed to a fixed frame. This invention introduces roller quenching into the quenching of extra-thick steel plates, solving problems such as low cooling rate, poor cooling uniformity, poor batch production stability, and inability to manually intervene in the quenching process in traditional immersion quenching. It achieves high-strength, uniform quenching of extra-thick steel plates and efficient, stable production.

[0004] In this prior art, each conveyor roller needs to be connected to a transmission device, and the transmission device drives the conveyor roller to rotate, so that multiple conveyor rollers cooperate to drive the workpiece. This increases the total number of transmission devices, thereby increasing the production cost of the product. Summary of the Invention

[0005] To address the problem in existing technologies where each conveyor roller needs to be connected to a separate drive device to rotate, thus requiring multiple conveyor rollers to work together to move the workpiece, which increases the total number of drive devices and consequently raises production costs, this invention provides a large gear-driven roller bottom heating device. This device uses multiple second helical gears simultaneously mounted on the outside of a drive shaft, with each second helical gear meshing with a first helical gear. This allows the drive shaft to drive the second helical gears, which in turn drive the first helical gears, providing power to the rotating transmission roller assembly. Compared to connecting multiple transmission roller assemblies to multiple drive devices separately, this method reduces the number of drive devices required, thereby lowering production costs. The specific technical solution is as follows:

[0006] A large gear-driven roller bottom heating device includes: a furnace body, heat-resistant cotton, a transmission roller assembly, a support base, a first bearing, a support beam, a mounting base, a drive shaft, a first connecting shaft, a first helical gear, and a second helical gear; the furnace body is a hollow cavity with openings at both ends; heat-resistant cotton is attached to the inner wall of the furnace body; multiple transmission roller assemblies are located inside the furnace body, with both ends of the multiple transmission roller assemblies passing through the heat-resistant cotton and the side wall of the furnace body in sequence; the top of the support base is provided with a support groove, and multiple support bases are installed on the outer wall of the furnace body, with the multiple support bases located below the transmission roller assemblies; two first bearings are fitted at both ends of the transmission roller assemblies, and the first... The bearing is embedded in the support groove of the support seat; multiple support beams are installed on the side wall of the furnace body; the mounting seat is provided with a mounting groove, and the mounting seat is installed on multiple support beams, and the mounting seat is located on the side of the support seat away from the furnace body; the drive shaft is located in the mounting groove, and the drive shaft is rotatably connected to the mounting seat; multiple first connecting shafts are respectively connected to one end of multiple transmission roller assemblies, and the first connecting shafts are located above the drive shaft; multiple first helical gears are respectively fitted on the outside of multiple first connecting shafts; multiple second helical gears are simultaneously fitted on the outside of the drive shaft, and the multiple second helical gears mesh with the multiple first helical gears; wherein, the width of the inner wall of the heat-resistant cotton is 2.7 meters to 5 meters.

[0007] In addition, the large gear-driven roller bottom heating device in the above-mentioned technical solution provided by this utility model may also have the following additional technical features:

[0008] In the above technical solution, the large gear-driven roller bottom heating device further includes: a second bearing, a limiting plate, and a limiting shaft; two second bearings are fitted on the outside of the first connecting shaft and embedded in the support groove of the support seat; the limiting plate is installed on the support seat and is located between the two second bearings; two limiting shafts pass through the limiting plate and are located above the two second bearings.

[0009] In the above technical solution, the transmission roller assembly includes: a transmission roller body, a connector, a second connecting shaft, a clamping plate, and a cotter pin; the transmission roller body is located inside the furnace body, and both ends of the transmission roller body pass through the heat-resistant cotton and the side wall of the furnace body in sequence; the connector is a hollow cavity with an opening at one end, and both ends of the transmission roller body are respectively embedded in the two connectors, the connectors are connected to the transmission roller body, and the connectors are located above the support base; the second connecting shaft is connected to the connector, and the first bearing is fitted on the outside of the second connecting shaft; the clamping plate is fitted on the outside of the second connecting shaft, and the clamping plate is in contact with the first bearing; the cotter pin passes through the second connecting shaft, and the cotter pin is in contact with the clamping plate.

[0010] In the above technical solution, the large gear-driven roller bottom heating device also includes: a sealing mounting ring and a sealing ring; the sealing mounting ring is provided with a sealing groove, the sealing mounting ring is installed on the outside of the furnace body, and the sealing mounting ring is arranged around the outside of the transmission roller body; the sealing ring is an elastic body, the sealing ring is embedded in the sealing groove, and the sealing ring is fitted on the outside of the transmission roller body.

[0011] In the above technical solution, the large gear-driven roller bottom heating device further includes: an air pipe, an exhaust pipe, a first radiant tube, a first air valve, and a first burner; the air pipe is a hollow cavity and is installed on the outside of the furnace body; the exhaust pipe is a hollow cavity and is installed on the outside of the furnace body; the first radiant tube is a hollow cavity with an opening at one end, two first radiant tubes are located inside the furnace body, the ends of the two first radiant tubes opposite to their openings are fixed to the inner wall of the furnace body, the open ends of the two first radiant tubes pass through the heat-resistant cotton and the side wall of the furnace body in sequence, and the two first radiant tubes are located above multiple drive roller assemblies; two first air valves are installed on the outside of the furnace body, the two first air valves are respectively connected to the openings of the two first radiant tubes, and the two first air valves are simultaneously connected to the exhaust pipe; two first burners are respectively installed on the outside of the two first air valves, the output ends of the two first burners are respectively connected to the two first air valves, and the input ends of the two first burners are simultaneously connected to the gas pipe and the air pipe.

[0012] In the above technical solution, the large gear-driven roller bottom heating device further includes: a second radiant tube, a second air valve, and a second burner; the second radiant tube is a hollow cavity with an opening at one end, located inside the furnace body, with the end of the second radiant tube opposite to the opening fixed to the inner wall of the furnace body, the open end of the second radiant tube passing through the heat-resistant cotton and the side wall of the furnace body in sequence, and the second radiant tube located below multiple drive roller assemblies; the second air valve is installed on the outside of the furnace body, connected to the opening of the second radiant tube, and connected to the exhaust pipe; the second burner is installed on the outside of the second air valve, the output end of the second burner is connected to the second air valve, and the input end of the second burner is simultaneously connected to the gas pipe and the air pipe; wherein, the second radiant tube is located between two first radiant tubes.

[0013] In the above technical solution, the large gear-driven roller bottom heating device also includes: support rollers and heating wires; multiple support rollers are located inside the furnace body, with both ends of the multiple support rollers passing through heat-resistant cotton, both ends of the multiple support rollers being connected to the furnace body, and the multiple support rollers being located above multiple transmission roller assemblies; multiple heating wires are respectively fitted on the outside of the multiple support rollers, the multiple heating wires passing through the heat-resistant cotton and the furnace body in sequence, and the multiple heating wires being electrically connected to a power source.

[0014] The advantages of this large-scale gear-driven roller bottom heating device compared with the prior art are as follows:

[0015] 1. By connecting multiple first connecting shafts to one end of multiple transmission roller assemblies respectively, and mounting multiple first helical gears on the outside of the multiple first connecting shafts respectively, the first connecting shafts, transmission roller assemblies, and first helical gears can rotate synchronously. By mounting multiple second helical gears simultaneously on the outside of a drive shaft, and meshing the multiple second helical gears with the multiple first helical gears respectively, the drive shaft can drive the multiple second helical gears to rotate, thus enabling the second helical gears to mesh with and drive the first helical gears, providing power for rotating the transmission roller assemblies. Compared to connecting multiple transmission roller assemblies to multiple drive devices separately, this method saves on the number of drive devices, thereby reducing product production costs. By setting the width of the inner wall of the heat-resistant cotton to 2.7 meters to 5 meters, the effective heating width of the product is set to 2.7 meters to 5 meters, enabling the heating of workpieces with larger dimensions and increasing the product's applicability.

[0016] 2. By passing two limiting shafts through the limiting plate and positioning them above the two second bearings, the limiting plate supports the two limiting shafts, thereby limiting the two second bearings to prevent them from running and improving the stability of the rotation of the first connecting shaft.

[0017] 3. By fitting the clamping plate onto the outside of the second connecting shaft, the clamping plate is brought into contact with the first bearing. The cotter pin is passed through the second connecting shaft and brought into contact with the clamping plate. This allows the clamping plate to limit the first bearing, and the cotter pin to limit the clamping plate, thereby preventing the first bearing from shifting and improving the user experience of the product.

[0018] 4. By embedding the sealing ring into the sealing groove of the sealing mounting ring and fitting the sealing ring onto the outside of the transmission roller body, the sealing ring seals the gap between the sealing mounting ring and the transmission roller body and the gap between the transmission roller body and the furnace body, thereby preventing heat loss from the furnace body and improving the user experience of the product.

[0019] 5. By installing two first burners on the outside of two first air valves respectively, connecting the output end of the first burners to the first air valves, and simultaneously connecting the input end of the first burners to the air pipe and the gas pipe, the air in the air pipe and the gas in the gas pipe can be injected into the first burners, mixed and ignited in the first burners, thereby generating heat, which is injected into the air valves and the first radiant tubes, thereby heating the workpiece placed on the transmission roller assembly to complete the heat treatment of the workpiece; at the same time, the exhaust pipe is located on the outside of the furnace body and connected to the air valve, so that the exhaust gas generated by the combustion of air and gas can be discharged through the exhaust pipe.

[0020] 6. By positioning the second radiant tube between the two first radiant tubes, a V-shape is formed between the second radiant tube and the two first radiant tubes, thereby heating the workpiece from multiple angles to make the workpiece heat-treated more evenly and further improve the heat treatment effect.

[0021] 7. By mounting the heating wire on the outside of the support roller, the heating wire passes through the heat-resistant cotton and the furnace body in sequence, and the heating wire is electrically connected to the power source, so that the support roller supports the heating wire, thereby enabling the power source to supply power to the heating wire, so that the heating wire heats up, and thus enables the heating wire to heat the workpiece placed on the transmission roller from above. Attached Figure Description

[0022] Figure 1 is one of the perspective views of a large gear-driven roller bottom heating device according to this utility model;

[0023] Figure 2 is a magnified view of part A in Figure 1;

[0024] Figure 3 is a second perspective view of a large gear-driven roller bottom heating device of this utility model;

[0025] Figure 4 is a magnified view of part B in Figure 3;

[0026] Figure 5 is a third perspective view of a large gear-driven roller bottom heating device of this utility model;

[0027] The correspondence between the reference numerals and component names in Figures 1 to 5 is as follows:

[0028] 10 Furnace body, 11 Heat-resistant cotton, 12 Drive roller assembly, 121 Drive roller body, 122 Connector, 123 Second connecting shaft, 124 Clamping plate, 125 Cotter pin, 13 Support base, 14 First bearing, 15 Support beam, 16 Mounting base, 17 Drive shaft, 18 First connecting shaft, 19 First helical gear, 20 Second helical gear, 21 Second bearing, 22 Limiting plate, 23 Limiting shaft, 24 Sealing mounting ring, 26 Air pipe, 27 Exhaust pipe, 28 First radiant tube, 29 First air valve, 30 First burner, 31 Second radiant tube, 32 Second air valve, 33 Second burner, 34 Support roller, 35 Heating wire. Detailed Implementation

[0029] The present invention will be further described below with reference to specific implementation examples and Figures 1 to 5, but the present invention is not limited to these embodiments.

[0030] A large gear-driven roller bottom heating device, as shown in Figures 1 to 5, includes: a furnace body 10, heat-resistant cotton 11, a transmission roller assembly 12, a support base 13, a first bearing 14, a support beam 15, a mounting base 16, a drive shaft 17, a first connecting shaft 18, a first helical gear 19, and a second helical gear 20. The furnace body 10 is a hollow cavity with openings at both ends. The heat-resistant cotton 11 is attached to the inner wall of the furnace body 10. Multiple transmission roller assemblies 12 are located inside the furnace body 10, with both ends of the multiple transmission roller assemblies 12 passing through the heat-resistant cotton 11 and the side wall of the furnace body 10 in sequence. The top of the support base 13 is provided with a support groove, and multiple support bases 13 are installed on the outer wall of the furnace body 10, with the multiple support bases 13 located below the transmission roller assembly 12. Two first bearings 14 are fitted onto the transmission roller assembly 12. The first bearing 14 is embedded in the support groove of the support seat 13 at both ends; multiple support beams 15 are installed on the side wall of the furnace body 10; the mounting seat 16 is provided with a mounting groove, and the mounting seat 16 is installed on multiple support beams 15, and the mounting seat 16 is located on the side of the support seat 13 away from the furnace body 10; the drive shaft 17 is located in the mounting groove, and the drive shaft 17 is rotatably connected to the mounting seat 16; multiple first connecting shafts 18 are respectively connected to one end of multiple transmission roller assemblies 12, and the first connecting shafts 18 are located above the drive shaft 17; multiple first helical gears 19 are respectively fitted on the outside of multiple first connecting shafts 18; multiple second helical gears 20 are simultaneously fitted on the outside of the drive shaft 17, and the multiple second helical gears 20 mesh with multiple first helical gears 19 respectively; wherein, the width of the inner wall of the heat-resistant cotton 11 is 2.7 meters to 5 meters.

[0031] By attaching heat-resistant cotton 11 to the inner wall of the furnace body 10, the heat resistance of the furnace body 10 is increased; by installing multiple support seats 13 on the outer wall of the furnace body 10, the furnace body 10 can support the multiple support seats 13, thereby improving the stability of the support seats 13; by passing the two ends of multiple transmission roller assemblies 12 through the heat-resistant surface and the side wall of the furnace body 10, two first bearings 14 are fitted onto the two ends of the transmission roller assemblies 12, and the first bearings 14 are embedded in the support groove of the support seat 13, so that the support seat 13 supports the transmission roller assembly 12 through the first bearings 14, thereby enabling the transmission roller assembly 12 to rotate inside the furnace body 10. By installing multiple support beams 15 on the side wall of the furnace body 10 and mounting base 16 on the multiple support beams 15, the furnace body 10 supports the mounting base 16 through the multiple support beams 15, thereby improving the stability of the mounting base 16; by positioning the drive shaft 17 in the mounting groove and rotatably connecting the drive shaft 17 with the mounting base 16, the mounting base 16 supports the drive shaft 17, thereby enabling the drive shaft 17 to rotate within the mounting groove. By connecting multiple first connecting shafts 18 to one end of multiple transmission roller assemblies 12 respectively, and mounting multiple first helical gears 19 on the outside of the multiple first connecting shafts 18 respectively, the first connecting shafts 18, transmission roller assemblies 12, and first helical gears 19 can rotate synchronously. By mounting multiple second helical gears 20 on the outside of a drive shaft 17, and meshing the multiple second helical gears 20 with the multiple first helical gears 19 respectively, the drive shaft 17 can drive the multiple second helical gears 20 to rotate, thereby enabling the second helical gears 20 to mesh with and drive the first helical gears 19, thus providing power for rotating the transmission roller assembly 12. By setting the width of the inner wall of the heat-resistant cotton 11 to 2.7 meters to 5 meters, the effective heating width of the product is set to 2.7 meters to 5 meters, thereby enabling the heating of workpieces with larger dimensions and increasing the product's applicability.

[0032] By adopting the above structure, multiple first connecting shafts 18 are respectively connected to one end of multiple transmission roller assemblies 12, and multiple first helical gears 19 are respectively mounted on the outside of the multiple first connecting shafts 18, so that the first connecting shafts 18, transmission roller assemblies 12 and first helical gears 19 can rotate synchronously; by simultaneously mounting multiple second helical gears 20 on the outside of the drive shaft 17, and meshing the multiple second helical gears 20 with the multiple first helical gears 19, so that the drive shaft 17 can drive the multiple second helical gears 20 to rotate, thereby enabling the second helical gears 20 to mesh with and drive the first helical gears 19, thus providing power for rotating the transmission roller assembly 12. Compared with connecting multiple transmission roller assemblies 12 to multiple drive devices, the number of drive devices can be reduced, thereby reducing the production cost of the product. By setting the width of the inner wall of the heat-resistant cotton 11 to 2.7 meters to 5 meters, the effective heating width of the product is 2.7 meters to 5 meters, thereby enabling the heating of workpieces with larger specifications and increasing the applicability of the product.

[0033] In an embodiment of this utility model, as shown in Figures 1 to 5, the large gear-driven roller bottom heating device further includes: a second bearing 21, a limiting plate 22, and a limiting shaft 23; the two second bearings 21 are fitted on the outside of the first connecting shaft 18, and the two second bearings 21 are embedded in the support groove of the support seat 13; the limiting plate 22 is installed on the support seat 13, and the limiting plate 22 is located between the two second bearings 21; the two limiting shafts 23 pass through the limiting plate 22, and the two limiting shafts 23 are located above the two second bearings 21.

[0034] By mounting two second bearings 21 on the outside of the first connecting shaft 18 and embedding them into the support grooves of the support base 13, the support base 13 supports the first connecting shaft 18 through the two second bearings 21, thereby improving the rotational stability of the first connecting shaft 18. By installing a limiting plate 22 on the support base 13 and positioning it between the two second bearings 21, the support base 13 supports the limiting plate 22, thereby limiting the two second bearings 21 to prevent them from approaching each other, thus improving the rotational stability of the two second bearings 21. By passing two limiting shafts 23 through the limiting plate 22 and positioning them above the two second bearings 21, the limiting plate 22 supports the two limiting shafts 23, thereby limiting the two second bearings 21 to prevent them from jumping, thus improving the rotational stability of the first connecting shaft 18.

[0035] In an embodiment of this utility model, as shown in Figures 1 to 5, the transmission roller assembly 12 includes: a transmission roller body 121, a connector 122, a second connecting shaft 123, a clamping plate 124, and a cotter pin 125. The transmission roller body 121 is located inside the furnace body 10, and both ends of the transmission roller body 121 pass through the heat-resistant cotton 11 and the side wall of the furnace body 10 in sequence. The connector 122 is a hollow cavity with an opening at one end. Both ends of the transmission roller body 121 are respectively embedded in the two connectors 122. The connectors 122 are connected to the transmission roller body 121 and are located above the support base 13. The second connecting shaft 123 is connected to the connector 122, and the first bearing 14 is fitted on the outside of the second connecting shaft 123. The clamping plate 124 is fitted on the outside of the second connecting shaft 123 and is in contact with the first bearing 14. The cotter pin 125 passes through the second connecting shaft 123 and is in contact with the clamping plate 124.

[0036] By embedding both ends of the transmission roller body 121 into two connectors 122 respectively, and connecting the connectors 122 to the transmission roller body 121, the transmission roller body 121 and the two connectors 122 can rotate synchronously. By connecting the second connecting shaft 123 to the connectors 122 and fitting the first bearing 14 on the outside of the second connecting shaft 123, the second connecting shaft 123 and the connectors 122 can rotate synchronously. Thus, the support seat 13 supports the second connecting shaft 123 through the first bearing 14, thereby improving the stability of the rotation of the second connecting shaft 123, the connectors 122 and the transmission roller body 121. By fitting the clamping plate 124 onto the outside of the second connecting shaft 123, the clamping plate 124 is brought into contact with the first bearing 14. The cotter pin 125 is passed through the second connecting shaft 123 and brought into contact with the clamping plate 124. This allows the clamping plate 124 to limit the first bearing 14 and the cotter pin 125 to limit the clamping plate 124, thereby preventing the first bearing 14 from shifting and improving the user experience of the product.

[0037] In the embodiments of this utility model, as shown in Figures 1 to 5, the large gear-driven roller bottom heating device further includes: a sealing mounting ring 24 and a sealing ring; the sealing mounting ring 24 is provided with a sealing groove, the sealing mounting ring 24 is installed on the outside of the furnace body 10, and the sealing mounting ring 24 is wrapped around the outside of the transmission roller body 121; the sealing ring is an elastic body, the sealing ring is embedded in the sealing groove, and the sealing ring is fitted on the outside of the transmission roller body 121.

[0038] By installing the sealing ring 24 on the outside of the furnace body 10 and wrapping it around the outside of the drive roller body 121, the furnace body 10 can support the sealing ring 24, thereby improving the stability of the sealing ring 24. By embedding the sealing ring into the sealing groove of the sealing ring 24 and fitting the sealing ring on the outside of the drive roller body 121, the sealing ring seals the gap between the sealing ring 24 and the drive roller body 121 and the gap between the drive roller body 121 and the furnace body 10, thereby preventing heat loss from the furnace body 10 and improving the user experience of the product.

[0039] In embodiments of this utility model, as shown in Figures 1 to 5, the large gear-driven roller bottom heating device further includes: an air pipe 26, an exhaust pipe 27, a first radiant pipe 28, a first air valve 29, and a first burner 30; the air pipe 26 is a hollow cavity and is installed on the outside of the furnace body 10; the exhaust pipe 27 is a hollow cavity and is installed on the outside of the furnace body 10; the first radiant pipe 28 is a hollow cavity with an opening at one end, two first radiant pipes 28 are located inside the furnace body 10, and the ends of the two first radiant pipes 28 facing away from the opening are fixed to the inner wall of the furnace body 10. One end of the opening passes through the heat-resistant cotton 11 and the side wall of the furnace body 10 in sequence, and the two first radiant tubes 28 are located above the multiple drive roller assemblies 12; the two first air valves 29 are installed on the outside of the furnace body 10, and the two first air valves 29 are respectively connected to the openings of the two first radiant tubes 28, and the two first air valves 29 are also connected to the exhaust pipe 27; the two first burners 30 are respectively installed on the outside of the two first air valves 29, the output ends of the two first burners 30 are respectively connected to the two first air valves 29, and the input ends of the two first burners 30 are simultaneously connected to the gas pipe and the air pipe 26.

[0040] By placing the first radiant tubes 28 inside the furnace body 10, fixing one end of the two first radiant tubes 28 away from their openings to the inner wall of the furnace body 10, and passing the open ends of the two first radiant tubes 28 through the side wall of the furnace body 10, the furnace body 10 supports the two first radiant tubes 28, thereby improving the stability of the first radiant tubes 28; by installing the two first air valves 29 on the outside of the furnace body 10 and connecting the two first air valves 29 to the openings of the two first radiant tubes 28 respectively, the furnace body 10 can support the two first air valves 29, thereby improving the stability of the first air valves 29; by installing the two first burners 30 on the two first air... On the outside of valve 29, the output end of the first burner 30 is connected to the first air valve 29, and the input end of the first burner 30 is simultaneously connected to the air pipe 26 and the gas pipe, so that the air in the air pipe 26 and the gas in the gas pipe can be injected into the first burner 30, mixed and ignited in the first burner 30, thereby generating heat, which is injected into the air valve and the first radiant tube 28, thereby heating the workpiece placed on the transmission roller assembly 12 to complete the heat treatment of the workpiece; at the same time, the exhaust pipe 27 is located on the outside of the furnace body 10 and connected to the air valve, so that the exhaust gas generated by the combustion of air and gas can be discharged through the exhaust pipe 27.

[0041] In an embodiment of this utility model, as shown in Figures 1 to 5, the large gear-driven roller bottom heating device further includes: a second radiant tube 31, a second air valve 32, and a second burner 33; the second radiant tube 31 is a hollow cavity with an opening at one end, located inside the furnace body 10, with the end of the second radiant tube 31 facing away from the opening fixed to the inner wall of the furnace body 10, and the open end of the second radiant tube 31 passing through the heat-resistant cotton 11 and the side wall of the furnace body 10 in sequence, and the second radiant tube 31 is located below multiple transmission roller assemblies 12; the second air valve 32 is installed on the outside of the furnace body 10, and the second air valve 32 is connected to the opening of the second radiant tube 31, and the second air valve 32 is connected to the exhaust pipe 27; the second burner 33 is installed on the outside of the second air valve 32, the output end of the second burner 33 is connected to the second air valve 32, and the input end of the second burner 33 is simultaneously connected to the gas pipe and the air pipe 26; wherein, the second radiant tube 31 is located between two first radiant tubes 28.

[0042] By placing the second radiant tube 31 inside the furnace body 10, fixing one end of the second radiant tube 31 away from its opening to the inner wall of the furnace body 10, and passing the open end of the second radiant tube 31 through the side wall of the furnace body 10, the furnace body 10 supports the second radiant tube 31, thereby improving the stability of the second radiant tube 31. By installing the second air valve 32 on the outside of the furnace body 10 and connecting the second air valve 32 to the openings of the second radiant tube 31 respectively, the furnace body 10 can support both second air valves 32, thereby improving the stability of the second air valves 32. By installing the second burner 33 on the second air valve 3... On the outside of section 2, the output end of the second burner 33 is connected to the second air valve 32, and the input end of the second burner 33 is simultaneously connected to the air pipe 26 and the gas pipe, so that the air in the air pipe 26 and the gas in the gas pipe can be injected into the second burner 33, where they mix and ignite, thereby generating heat, which is then injected into the air valve and the second radiant tube 31 to heat the workpiece placed on the transmission roller assembly 12. Simultaneously, the exhaust pipe 27 is located on the outside of the furnace body 10 and connected to the air valve, so that the exhaust gas generated from the combustion of air and gas can be discharged through the exhaust pipe 27. By positioning the second radiant tube 31 between the two first radiant tubes 28, a V-shape is formed between the second radiant tube 31 and the two first radiant tubes 28, thereby heating the workpiece from multiple angles, making the workpiece more evenly heated, and further improving the heat treatment effect.

[0043] In an embodiment of this utility model, as shown in Figures 1 to 5, the large gear-driven roller bottom heating device further includes: a support roller 34 and an electric heating wire 35; multiple support rollers 34 are located inside the furnace body 10, with both ends of the multiple support rollers 34 passing through heat-resistant cotton 11, and both ends of the multiple support rollers 34 being connected to the furnace body 10, and the multiple support rollers 34 being located above multiple transmission roller assemblies 12; multiple electric heating wires 35 are respectively fitted on the outside of the multiple support rollers 34, and the multiple electric heating wires 35 pass through the heat-resistant cotton 11 and the furnace body 10 in sequence, and the multiple electric heating wires 35 are electrically connected to a power source.

[0044] By passing both ends of multiple support rollers 34 through heat-resistant cotton 11 and connecting both ends of multiple support rollers 34 to the furnace body 10, the furnace body 10 supports multiple support rollers 34, thereby improving the stability of multiple support rollers 34; by fitting heating wires 35 on the outside of support rollers 34, passing heating wires 35 sequentially through heat-resistant cotton 11 and furnace body 10, and connecting heating wires 35 to a power source, the support rollers 34 support heating wires 35, thereby enabling the power source to supply power to heating wires 35, causing heating wires 35 to heat the workpiece placed on the transmission roller from above.

[0045] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A large gear-driven roller bottom heating device, characterized in that, The large gear-driven roller bottom heating device includes: a furnace body, which is a hollow cavity with openings at both ends; heat-resistant cotton, which is attached to the inner wall of the furnace body; a transmission roller assembly, in which multiple transmission roller assemblies are located inside the furnace body, with both ends of the multiple transmission roller assemblies passing through the heat-resistant cotton and the side wall of the furnace body in sequence; a support base, the top of which is provided with a support groove, and multiple support bases are installed on the outer wall of the furnace body, and the multiple support bases are located below the transmission roller assemblies; two first bearings, which are fitted at both ends of the transmission roller assemblies, and the first bearings are embedded in the support grooves of the support bases; support beams, in which multiple support beams are installed on the side wall of the furnace body; and a mounting base. The mounting base is provided with an installation groove, and the mounting base is installed on multiple support beams, with the mounting base located on the side of the support base away from the furnace body; a drive shaft is located in the mounting groove and is rotatably connected to the mounting base; a first connecting shaft, multiple first connecting shafts are respectively connected to one end of multiple transmission roller assemblies, and the first connecting shaft is located above the drive shaft; a first helical gear, multiple first helical gears are respectively fitted on the outside of multiple first connecting shafts; a second helical gear, multiple second helical gears are simultaneously fitted on the outside of the drive shaft, and the multiple second helical gears respectively mesh with multiple first helical gears; wherein, the width of the inner wall of the heat-resistant cotton is 2.7 meters to 5 meters.

2. The large gear-driven roller bottom heating device according to claim 1, characterized in that, The large gear-driven roller bottom heating device further includes: two second bearings, which are fitted on the outside of the first connecting shaft and embedded in the support groove of the support seat; a limiting plate, which is installed on the support seat and is located between the two second bearings; and two limiting shafts, which pass through the limiting plate and are located above the two second bearings.

3. The large gear-driven roller bottom heating device according to claim 1, characterized in that, The drive roller assembly includes: a drive roller body located inside the furnace body, with both ends of the drive roller body passing through the heat-resistant cotton and the side wall of the furnace body in sequence; a connector, which is a hollow cavity with an opening at one end, with both ends of the drive roller body respectively embedded in the two connectors, the connectors being connected to the drive roller body and located above the support base; a second connecting shaft connected to the connector, with the first bearing mounted on the outside of the second connecting shaft; a clamping plate mounted on the outside of the second connecting shaft and fitting against the first bearing; and a cotter pin passing through the second connecting shaft and fitting against the clamping plate.

4. A large gear-driven roller bottom heating device according to claim 3, characterized in that, The large gear-driven roller bottom heating device further includes: a sealing mounting ring, which has a sealing groove inside and is installed on the outside of the furnace body, and is arranged around the outside of the transmission roller body; and a sealing ring, which is an elastic body, is embedded in the sealing groove, and is fitted on the outside of the transmission roller body.

5. A large gear-driven roller bottom heating device according to claim 1, characterized in that, The large gear-driven roller bottom heating device further includes: an air pipe, which is a hollow cavity and is installed on the outside of the furnace body; an exhaust pipe, which is also a hollow cavity and is installed on the outside of the furnace body; two first radiant tubes, which are hollow cavities with an opening at one end, located inside the furnace body, with the ends of the two first radiant tubes opposite to their openings fixed to the inner wall of the furnace body, and the open ends of the two first radiant tubes passing through the heat-resistant cotton and the side wall of the furnace body in sequence, and located above the plurality of drive roller assemblies; two first air valves, installed on the outside of the furnace body, connected to the openings of the two first radiant tubes respectively, and simultaneously connected to the exhaust pipe; and two first burners, installed on the outside of the two first air valves respectively, with the output ends of the two first burners connected to the two first air valves respectively, and the input ends of the two first burners simultaneously connected to the gas pipe and the air pipe.

6. A large gear-driven roller bottom heating device according to claim 5, characterized in that, The large gear-driven roller bottom heating device further includes: a second radiant tube, which is a hollow cavity with an opening at one end, located inside the furnace body, with one end of the second radiant tube opposite to the opening fixed to the inner wall of the furnace body, and the open end of the second radiant tube passing through the heat-resistant cotton and the side wall of the furnace body in sequence, and the second radiant tube located below the plurality of drive roller assemblies; a second air valve, installed on the outside of the furnace body, connected to the opening of the second radiant tube, and connected to the exhaust gas pipe; a second burner, installed on the outside of the second air valve, with the output end of the second burner connected to the second air valve, and the input end of the second burner simultaneously connected to the gas pipe and the air pipe; wherein, the second radiant tube is located between two first radiant tubes.

7. A large gear-driven roller bottom heating device according to claim 6, characterized in that, The large gear-driven roller bottom heating device further includes: a support roller, a plurality of support rollers located inside the furnace body, the two ends of the plurality of support rollers passing through the heat-resistant cotton, the two ends of the plurality of support rollers being connected to the furnace body, and the plurality of support rollers being located above the plurality of drive roller assemblies; and heating wires, a plurality of heating wires respectively fitted on the outside of the plurality of support rollers, the plurality of heating wires passing through the heat-resistant cotton and the furnace body in sequence, and the plurality of heating wires being electrically connected to a power source.

Images