Roll shaft type electric heating furnace

Abstract

The utility model provides a roll shaft type electric heating furnace, and belongs to the technical field of electric heating furnaces. The roller shaft type electric heating furnace comprises a box body, refractory bricks, a heating wire assembly, a transmission roller, a supporting pipe, first heat insulation cotton, a connecting sleeve, a supporting seat, a first connecting shaft, a first bearing and a limiting screw. The supporting pipe is arranged to be the carbon fiber body, the supporting pipe is located in the transmission roller, the supporting pipe is sleeved with the first heat insulation cotton, and the first heat insulation cotton is attached to the inner wall of the transmission roller, so that the supporting pipe supports the transmission roller through the first heat insulation cotton, and the strength of the transmission roller is improved; therefore, the situation that the middle of the transmission roller is damaged due to the fact that the transmission roller is too long is avoided, the product quality is improved, then the transmission roller can rotate in a box with the large width, and the product applicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric heating furnaces, and in particular relates to a roller-type electric heating furnace. Background Art

[0002] In the related art, when a workpiece is subjected to heat treatment, the workpiece is usually placed on a ceramic transmission roller, and the transmission roller is rotated so that the transmission roller drives the workpiece to move, thereby realizing the transportation of the workpiece.

[0003] The prior art (authorization announcement number: CN216614440U) provides a ceramic roller transmission assembly for a heating furnace in a horizontal glass tempering electric furnace unit. The ceramic roller transmission assembly for a heating furnace in a horizontal glass tempering electric furnace unit includes a frame, a heating furnace, a through-groove, a conveyor roller, a driven gear, a mounting plate, a rotating motor, a driving gear and a transmission belt. A adding furnace is fixedly provided at the center of the upper surface of the frame, and through-grooves are provided below the left and right surfaces of the heating furnace. A plurality of conveyor rollers are rotatably provided at the center of the upper surface of the frame through bearings, and the conveyor rollers are ceramic rollers; a transmission belt, a driving gear and a driven gear are provided, and the driving gear and the driven gear are both engaged with the teeth on the transmission belt, so that when the rotating motor drives the driving gear to rotate, the transmission belt is driven to move, and the driven gear is driven to rotate through the teeth on the transmission belt, thereby ensuring that the driven gear rotates at the same speed, thereby achieving the effect of ensuring that the conveyor rollers rotate at the same speed.

[0004] In this prior art, the workpiece is moved by a ceramic conveyor roller; when the width of the heating furnace is large, the conveyor roller needs to have a longer length, so when the workpiece is placed on the conveyor roller, the middle part of the conveyor roller is prone to breakage, thereby reducing the quality of the product. Utility Model Content

[0005] In order to solve the problem in the above-mentioned prior art that when the width of the heating furnace is large, the conveyor roller needs to have a long length. Therefore, when the workpiece is placed on the conveyor roller, the middle part of the conveyor roller is prone to breakage, thereby reducing the quality of the product, the utility model provides a roller-type electric heating furnace, which adopts a support tube set as a carbon fiber body, the support tube is located inside the transmission roller, the first thermal insulation cotton is sleeved on the outside of the support tube, and the first thermal insulation cotton is made to fit the inner wall of the transmission roller, so that the support tube supports the transmission roller through the first thermal insulation cotton, thereby improving the strength of the transmission roller, avoiding damage to the middle part of the transmission roller due to the excessive length of the transmission roller, and improving the effect of product quality. Its specific technical solution is:

[0006] A roller-type electric heating furnace, the roller-type electric heating furnace includes: a box body, refractory bricks, a heating wire assembly, a transmission roller, a support tube, a first thermal insulation cotton, a connecting sleeve, a support seat, a first connecting shaft, a first bearing and a limit screw; the box body is a hollow cavity with openings at both ends; the refractory bricks are attached to the inner wall of the box body; a plurality of heating wire assemblies are located in the box body, and the two ends of the plurality of heating wire assemblies pass through the refractory bricks and the box body in sequence, and the heating wire assemblies are electrically connected to the power supply; the transmission roller is a hollow cavity with openings at both ends, the transmission roller is a ceramic body, the plurality of transmission rollers are located in the box body, and the two ends of the plurality of transmission rollers pass through the refractory bricks and the box body in sequence; the support tube is a carbon fiber body, and the support tube is located in the transmission body The driving roller is installed in the supporting base, and the two ends of the supporting tube pass through the refractory bricks and the box body in sequence; the first thermal insulation cotton sleeve is installed on the outside of the supporting tube, and the first thermal insulation cotton fits the inner wall of the driving roller; the connecting sleeve is a hollow cavity with an opening at one end, and the two connecting sleeves are respectively installed on the two ends of the driving roller, and the connecting sleeves are located on the outside of the box body; a supporting groove is provided in the supporting seat, the supporting seat is fixed on the outside of the box body, and the supporting seat is located below the connecting sleeve; the first connecting shaft is connected to the connecting sleeve; the first bearing sleeve is installed on the outside of the first connecting shaft, and the first bearing is embedded in the supporting groove; at least two limit screws are fixed in the supporting groove, and at least two limit screws are located on the side of the first bearing away from the box body.

[0007] In addition, the roller-type electric heating furnace in the above technical solution provided by the present invention may also have the following additional technical features:

[0008] In the above technical solution, the heating wire assembly includes: a roller, a sleeve, a second thermal insulation cotton and a heating wire body; at least part of the roller is located in the box, and the two ends of the roller pass through the refractory bricks and the box in sequence; the sleeve is a ceramic body, and the two sleeves are sleeved on the two ends of the roller, and the sleeve is located in the refractory brick; the second thermal insulation cotton is sleeved on the outside of the sleeve, and the second thermal insulation cotton is in contact with the refractory brick; the heating wire body is wound around the outside of the roller, and the two ends of the heating wire body pass through the refractory bricks and the box in sequence, and the heating wire body is electrically connected to the power supply.

[0009] In the above technical solution, the roller-type electric heating furnace also includes: a connecting seat, a cotter pin, a connecting part and an air vent; a connecting hole is provided in the connecting seat, the connecting seat is buckled at the opening of the transmission roller, and the support tube is located in the connecting hole; the cotter pin passes through the connecting seat and the support tube in sequence; the connecting part is annular, the connecting part is connected to the connecting seat, the connecting part is embedded in the transmission roller, the connecting part is in contact with the inner wall of the transmission roller, and the connecting part is wrapped around the outside of the support tube; at least two air vents are provided in the connecting seat, and the air vents are connected to the inside of the transmission roller; wherein, the connecting part and the transmission roller are interference fit.

[0010] In the above technical solution, the outer wall of the connecting portion is inclined.

[0011] In the above technical solution, the roller-type electric heating furnace also includes: an opening, a clamping hole and a clamping screw; the opening is arranged on the outer wall of the connecting sleeve; an internal thread is arranged in the clamping hole, and the clamping hole is arranged through the connecting sleeve; an external thread is arranged on the outer wall of the clamping screw, and the clamping screw is embedded in the clamping hole; wherein, the internal thread is adapted to the external thread.

[0012] In the above technical solution, the roller-type electric heating furnace also includes: a mounting ring and a sealing ring; the mounting ring is located on the outside of the box body, the mounting ring is fixed on the outer wall of the box body, and the mounting ring is arranged on the outside of the transmission roller; the sealing ring is an elastomer, the sealing ring is embedded in the mounting ring, and the sealing ring is sleeved on the outside of the transmission roller.

[0013] In the above technical solution, the width of the box body is 2550-5000 mm; the diameter of the transmission roller is 81-150 mm; and the diameter of the support tube is 15-65 mm.

[0014] Compared with the prior art, the roller-type electric heating furnace of the present invention has the following beneficial effects:

[0015] 1. By setting the transmission roller as a ceramic body, the transmission roller has high heat resistance, so that when the heating wire assembly heats the workpiece placed on the transmission roller, the transmission roller is prevented from being damaged by heat; by setting the support tube as a carbon fiber body, the support tube is located inside the transmission roller, the first thermal insulation cotton is sleeved on the outside of the support tube, and the first thermal insulation cotton is fit to the inner wall of the transmission roller, so that the support tube supports the transmission roller through the first thermal insulation cotton, thereby improving the strength of the transmission roller, so as to avoid the transmission roller being damaged in the middle part due to excessive length, thereby improving the quality of the product, and then enabling the transmission roller to rotate in a box with a larger width, thereby improving the applicability of the product; at the same time, since the support tube is a carbon fiber body, the support tube is light in weight, thereby not increasing the weight of the transmission roller, and thus not increasing the efficiency of the drive device and transmission device connected to the transmission roller, thereby improving the use experience of the product. Moreover, since the support tube supports the transmission roller through the first heat insulation cotton, it can not only avoid rigid contact between the support tube and the transmission roller to avoid damage to the product, but also avoid heat exchange between the support tube and the transmission roller, thereby avoiding damage to the support tube due to heat, thereby improving product quality.

[0016] 2. By winding the heating wire body around the outside of the roller, the two ends of the heating wire body pass through the refractory bricks and the box in sequence, and the heating wire body is electrically connected to the power supply, so that the roller can support the heating wire body, thereby improving the stability of the heating wire body. At the same time, the power supply can also be used to supply power to the heating wire body, thereby making the heating wire body heat up and heating the workpiece.

[0017] 3. By connecting the annular connecting portion to the connecting seat, embedding the connecting portion into the drive roller, and ensuring that the connecting portion fits against the inner wall of the drive roller, the connecting portion and the drive roller are configured to form an interference fit, thereby connecting the connecting seat and the drive roller together. This allows the drive roller to support the support tube through the connecting seat, thereby improving the stability of the support tube. By providing multiple ventilation holes in the connecting seat and connecting the ventilation holes to the interior of the drive roller, the interior of the drive roller can be ventilated and dissipated through the ventilation holes, thereby preventing the drive roller from expanding and bending due to heat, thereby improving product quality.

[0018] 4. By setting the outer wall of the connecting part as a slope, the connecting part can be embedded in the transmission roller, thereby improving the assembly efficiency of the product and enhancing the user experience of the product.

[0019] 5. By setting the clamping hole through in the connecting sleeve, the clamping screw is embedded in the clamping hole, so that the depth of the clamping screw embedded in the clamping hole can be adjusted by screwing the clamping screw, so that the clamping screw presses the connecting sleeve to contract, and then the connecting sleeve is tightly sleeved on the outside of the transmission roller, so as to improve the connection strength between the connecting sleeve and the transmission roller.

[0020] 6. By embedding the sealing ring into the mounting ring and sleeve the sealing ring on the outside of the transmission roller, the sealing ring can be sleeved on the outside of the transmission roller to achieve the sealing ring. The gap between the transmission roller and the box body can be sealed to avoid heat loss in the box body, thereby improving the product experience.

[0021] 7. By setting the width of the box body to 2550-5000mm, there is enough working space in the box body, so that multiple workpieces can be placed in the furnace body at the same time, and then the heating wire assembly can heat the workpieces at the same time, thereby improving the work efficiency of the product; by setting the diameter of the transmission roller to 81-150mm and the diameter of the support tube to 15-65mm, the transmission roller and the support tube have a certain strength, so that when the width of the box body is large, the transmission roller and the support tube will not be damaged, thereby improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of a roller-type electric heating furnace of the present invention;

[0023] Figure 2 for Figure 1 A local enlarged view of point A;

[0024] Figure 3 It is a three-dimensional diagram of the transmission roller and the connecting sleeve of the utility model;

[0025] Figure 4 A three-dimensional diagram of the heating wire assembly of the present invention;

[0026] Figure 5 This is a three-dimensional diagram of the support tube and the first thermal insulation cotton of the present invention;

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

[0028] 10 box body, 11 refractory bricks, 12 heating wire assembly, 121 roller, 122 sleeve, 123 second thermal insulation cotton, 124 heating wire body, 13 transmission roller, 14 support tube, 15 first thermal insulation cotton, 16 connecting sleeve, 17 support seat, 18 support groove, 19 first connecting shaft, 20 first bearing, 21 limit screw, 22 connecting seat, 23 cotter pin, 24 connecting part, 25 air vent, 26 opening, 27 clamping hole, 28 clamping screw, 29 mounting ring. DETAILED DESCRIPTION

[0029] The following is a combination of specific implementation cases and attached Figures 1 to 5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0030] A roller type electric heating furnace, such as Figures 1 to 5 As shown, the roller-type electric heating furnace includes: a box body 10, refractory bricks 11, a heating wire assembly 12, a transmission roller 13, a support tube 14, a first thermal insulation cotton 15, a connecting sleeve 16, a support seat 17, a first connecting shaft 19, a first bearing 20 and a limit screw 21; the box body 10 is a hollow cavity with openings 26 at both ends; the refractory bricks 11 are attached to the inner wall of the box body 10; a plurality of heating wire assemblies 12 are located in the box body 10, and the two ends of the plurality of heating wire assemblies 12 pass through the refractory bricks 11 and the box body 10 in sequence, and the heating wire assembly 12 is electrically connected to the power supply; the transmission roller 13 is a hollow cavity with openings 26 at both ends, the transmission roller 13 is a ceramic body, the plurality of transmission rollers 13 are located in the box body 10, and the two ends of the plurality of transmission rollers 13 pass through the refractory bricks 11 and the box body 10 in sequence; the support tube 14 is a carbon fiber body, and the support tube 14 is located in the transmission roller 1 3, and both ends of the support tube 14 pass through the refractory bricks 11 and the box body 10 in sequence; the first thermal insulation cotton 15 is sleeved on the outside of the support tube 14, and the first thermal insulation cotton 15 is in contact with the inner wall of the transmission roller 13; the connecting sleeve 16 is a hollow cavity with an opening 26 at one end, and the two connecting sleeves 16 are respectively sleeved on the two ends of the transmission roller 13, and the connecting sleeves 16 are located on the outside of the box body 10; a support groove 18 is provided in the support seat 17, the support seat 17 is fixed on the outside of the box body 10, and the support seat 17 is located below the connecting sleeve 16; the first connecting shaft 19 is connected to the connecting sleeve 16; the first bearing 20 is sleeved on the outside of the first connecting shaft 19, and the first bearing 20 is embedded in the support groove 18; at least two limit screws 21 are fixed in the support groove 18, and at least two limit screws 21 are located on the side of the first bearing 20 away from the box body 10.

[0031] By setting the box body 10 as a hollow cavity with openings 26 at both ends, and attaching refractory bricks 11 to the inner wall of the box body 10, so that there is a storage space in the box body 10, the refractory bricks 11 can avoid heat exchange between the inside and outside of the box body 10, thereby improving the thermal insulation of the box body 10; by passing the two ends of multiple heating wire assemblies 12 through the refractory bricks 11 and the box body 10 in turn, and electrically connecting the heating wire assemblies 12 to the power supply, so that the box body 10 and the refractory bricks 11 support the heating wire assemblies 12, so that the heating wire assemblies 12 are heated after being energized, thereby heating the workpiece contained in the box body 10. By passing both ends of a plurality of transmission rollers 13 through the refractory bricks 11 and the box body 10 in sequence, positioning the support tube 14 inside the transmission roller 13, and passing both ends of the support tube 14 through the refractory bricks 11 and the box body 10 in sequence, the support tube 14 can support the transmission roller 13, thereby improving the strength of the transmission roller 13, and further preventing the transmission roller 13 from being broken due to stress caused by being too long when a workpiece is placed on the transmission roller 13, thereby improving the quality of the product. By putting the first thermal insulation cotton 15 on the outside of the support tube 14 and fitting the first thermal insulation cotton 15 with the inner wall of the transmission roller 13, the support tube 14 is supported by the first thermal insulation cotton 15. This not only avoids rigid contact between the support tube 14 and the transmission roller 13, thereby avoiding damage to the support tube 14 or the transmission roller 13, but also reduces heat exchange between the transmission roller 13 and the support tube 14, thereby avoiding damage to the support tube 14 due to excessive temperature; by putting the two connecting sleeves 16 on the two ends of the transmission roller 13 respectively, and making the connecting sleeves 16 on the outside of the box body 10, the transmission roller 13 and the two connecting sleeves 16 can be rotated synchronously, so that the connecting sleeve 16 can rotate on the outside of the box body 10; by connecting the first connecting shaft 19 to the connecting sleeve 16, the first connecting shaft 19 and the connecting sleeve 16 can be rotated synchronously. By fixing the support seat 17 on the outside of the box body 10 and positioning the support seat 17 below the connecting sleeve 16, the box body 10 supports the support seat 17, thereby improving the stability of the support seat 17; by sleeved the first bearing 20 on the outside of the first connecting shaft 19 and embedding the first bearing 20 into the support groove 18 of the support seat 17, the support seat 17 supports the first bearing 20 through the support groove 18, thereby improving the rotation stability of the first connecting shaft 19, the connecting sleeve 16 and the transmission roller 13; by fixing at least two limit screws 21 into the support groove 18 and positioning at least two limit screws 21 on the side of the first bearing 20 facing away from the box body 10, multiple limit screws 21 limit the first bearing 20, thereby preventing the connecting sleeve 16 and the transmission roller 13 from moving, thereby improving the rotation stability of the transmission roller 13.

[0032] With the above structure, by setting the transmission roller 13 as a ceramic body, the transmission roller 13 has high heat resistance, so that when the heating wire assembly 12 heats the workpiece placed on the transmission roller 13, the transmission roller 13 is prevented from being damaged by heat; by setting the support tube 14 as a carbon fiber body, the support tube 14 is located inside the transmission roller 13, the first thermal insulation cotton 15 is sleeved on the outside of the support tube 14, and the first thermal insulation cotton 15 is made to fit the inner wall of the transmission roller 13, so that the support tube 14 supports the transmission roller 13 through the first thermal insulation cotton 15, thereby improving the strength of the transmission roller 13, so as to avoid the transmission roller 13 being damaged in the middle part due to excessive length, thereby improving the quality of the product, and further enabling the transmission roller 13 to rotate in a box 10 with a larger width, thereby improving the applicability of the product; at the same time, since the support tube 14 is a carbon fiber body, the support tube 14 is light in weight, so as not to increase the weight of the transmission roller 13, and thus does not increase the efficiency of the drive device and transmission device connected to the transmission roller 13, thereby improving the user experience of the product. Moreover, since the support tube 14 supports the transmission roller 13 through the first heat insulating cotton 15, it can not only avoid rigid contact between the support tube 14 and the transmission roller 13 to avoid damage to the product, but also avoid heat exchange between the support tube 14 and the transmission roller 13, thereby avoiding damage to the support tube 14 due to heat, thereby improving product quality.

[0033] In the embodiment of the present utility model, as Figures 1 to 5 As shown, the heating wire assembly 12 includes: a roller 121, a sleeve 122, a second thermal insulation cotton 123 and a heating wire body 124; at least part of the roller 121 is located in the box 10, and the two ends of the roller 121 pass through the refractory bricks 11 and the box 10 in sequence; the sleeve 122 is a ceramic body, and the two sleeves 122 are sleeved on the two ends of the roller 121, and the sleeve 122 is located in the refractory brick 11; the second thermal insulation cotton 123 is sleeved on the outside of the sleeve 122, and the second thermal insulation cotton 123 is in contact with the refractory brick 11; the heating wire body 124 is wound around the outside of the roller 121, and the two ends of the heating wire body 124 pass through the refractory bricks 11 and the box 10 in sequence, and the heating wire body 124 is electrically connected to the power supply.

[0034] By passing the two ends of the roller 121 through the refractory bricks 11 and the box body 10 in sequence, the two sleeves 122 are put on the two ends of the roller 121, and the sleeves 122 are located in the refractory bricks 11, so that the refractory bricks 11 support the roller 121 through the two sleeves 122, thereby improving the stability of the roller 121; by putting the second thermal insulation cotton 123 on the outside of the sleeve 122, and making the second thermal insulation cotton 123 fit the refractory bricks 11, so that the refractory bricks 11 support the sleeve 122 through the second thermal insulation cotton 123, so that the refractory bricks 11 and the sleeve 122 are in rigid contact, so as to avoid damage to the sleeve 122 and improve the quality of the product. By winding the heating wire body 124 around the outside of the roller 121, the two ends of the heating wire body 124 pass through the refractory bricks 11 and the box body 10 in sequence, and the heating wire body 124 is electrically connected to the power supply, so that the roller 121 can support the heating wire body 124, thereby improving the stability of the heating wire body 124. At the same time, the power supply can also be used to supply power to the heating wire body 124, thereby making the heating wire body 124 heat up and heat the workpiece.

[0035] In the embodiment of the present utility model, as Figures 1 to 5 As shown, the roller-type electric heating furnace also includes: a connecting seat 22, a cotter pin 23, a connecting portion 24 and an air vent 25; a connecting hole is provided in the connecting seat 22, the connecting seat 22 is buckled at the opening 26 of the drive roller 13, and the support tube 14 is located in the connecting hole; the cotter pin 23 passes through the connecting seat 22 and the support tube 14 in sequence; the connecting portion 24 is annular, the connecting portion 24 is connected to the connecting seat 22, the connecting portion 24 is embedded in the drive roller 13, the connecting portion 24 is in contact with the inner wall of the drive roller 13, and the connecting portion 24 is wrapped around the outside of the support tube 14; at least two air vents 25 are provided in the connecting seat 22, and the air vents 25 are connected to the inside of the drive roller 13; wherein, the connecting portion 24 and the drive roller 13 are interference fit.

[0036] By buckling the connecting seat 22 at the opening 26 of the transmission roller 13, positioning the support tube 14 in the connecting hole, and passing the cotter pin 23 through the connecting seat 22 and the support tube 14 in sequence, the connecting seat 22 and the support tube 14 are connected together, so that the support tube 14 and the connecting seat 22 can be quickly disassembled to improve the assembly efficiency of the product; by connecting the annular connecting portion 24 with the connecting seat 22, the connecting portion 24 is embedded in the transmission roller 13, so that the connecting portion 24 fits against the inner wall of the transmission roller 13, and the connecting portion 24 and the transmission roller 13 are set to an interference fit, so as to connect the connecting seat 22 and the transmission roller 13 together, so that the transmission roller 13 supports the support tube 14 through the connecting seat 22, thereby improving the stability of the support tube 14. By setting multiple air holes 25 in the connecting seat 22 and connecting the air holes 25 with the transmission roller 13, the interior of the transmission roller 13 can be ventilated and heat-dissipated through the air holes 25, thereby preventing the transmission roller 13 from expanding and bending due to heat, thereby improving product quality.

[0037] In the embodiment of the present utility model, as Figures 1 to 5 As shown, the outer wall of the connecting portion 24 is inclined.

[0038] By setting the outer wall of the connecting portion 24 as an inclined surface, the connecting portion 24 can be easily embedded in the driving roller 13, thereby improving the assembly efficiency of the product and enhancing the user experience of the product.

[0039] In the embodiment of the present utility model, as Figures 1 to 5 As shown, the roller-type electric heating furnace also includes: an opening 26, a clamping hole 27 and a clamping screw 28; the opening 26 is arranged on the outer wall of the connecting sleeve 16; an internal thread is arranged in the clamping hole 27, and the clamping hole 27 is arranged through the connecting sleeve 16; an external thread is arranged on the outer wall of the clamping screw 28, and the clamping screw 28 is embedded in the clamping hole 27; wherein, the internal thread is adapted to the external thread.

[0040] By setting the opening 26 on the outer wall of the connecting sleeve 16, the connecting sleeve 16 can be elastically deformed through the opening 26; by setting the clamping hole 27 through the connecting sleeve 16, the clamping screw 28 is embedded in the clamping hole 27, so that the depth of the clamping screw 28 embedded in the clamping hole 27 can be adjusted by screwing the clamping screw 28, so that the clamping screw 28 presses the connecting sleeve 16 to contract, and then the connecting sleeve 16 is tightly fitted on the outside of the transmission roller 13, so as to improve the connection strength between the connecting sleeve 16 and the transmission roller 13.

[0041] In the embodiment of the present utility model, as Figures 1 to 5As shown, the roller-type electric heating furnace also includes: a mounting ring 29 and a sealing ring; the mounting ring 29 is located on the outside of the box body 10, the mounting ring 29 is fixed on the outer wall of the box body 10, and the mounting ring 29 is wound around the outside of the transmission roller 13; the sealing ring is an elastomer, the sealing ring is embedded in the mounting ring 29, and the sealing ring is sleeved on the outside of the transmission roller 13.

[0042] By fixing the mounting ring 29 on the outer wall of the box body 10 and winding the mounting ring 29 around the outside of the transmission roller 13, the box body 10 supports the mounting ring 29, thereby improving the stability of the mounting ring 29; by embedding the sealing ring into the mounting ring 29 and sleeved the sealing ring on the outside of the transmission roller 13, the sealing ring is sleeved on the outside of the transmission roller 13, so that the sealing ring can seal the gap between the transmission roller 13 and the box body 10, thereby avoiding heat loss in the box body 10 and improving the user experience of the product.

[0043] In the embodiment of the present invention, the width of the box body 10 is 2550-5000 mm; the diameter of the driving roller 13 is 81-150 mm; and the diameter of the support tube 14 is 15-65 mm.

[0044] By setting the width of the box 10 to 2550-5000mm, there is enough working space in the box 10, so that multiple workpieces can be placed in the furnace body at the same time, and then the heating wire assembly 12 can heat the workpieces at the same time, thereby improving the work efficiency of the product; by setting the diameter of the transmission roller 13 to 81-150mm, and the diameter of the support tube 14 to 15-65mm, the transmission roller 13 and the support tube 14 have a certain strength, so that when the width of the box 10 is large, the transmission roller 13 and the support tube 14 will not be damaged, thereby improving the quality of the product.

[0045] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connect," "install," and "fix" should be understood in a broad sense. For example, "connection" can mean 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 meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A roller-type electric heating furnace, characterized in that: The roller-type electric heating furnace comprises: A box body, wherein the box body is a hollow cavity with openings at both ends; Refractory bricks, the refractory bricks being attached to the inner wall of the box; Heating wire assemblies, wherein a plurality of the heating wire assemblies are located in the box, both ends of the plurality of the heating wire assemblies pass through the refractory bricks and the box in sequence, and the heating wire assemblies are electrically connected to a power supply; A transmission roller, wherein the transmission roller is a hollow cavity with openings at both ends, and the transmission roller is a ceramic body. A plurality of the transmission rollers are located in the box, and both ends of the plurality of transmission rollers pass through the refractory bricks and the box in sequence; A support tube, the support tube being a carbon fiber body, the support tube being located inside the transmission roller, and the two ends of the support tube sequentially passing through the refractory bricks and the box body; A first thermal insulation cotton is sleeved on the outside of the support tube and is in contact with the inner wall of the transmission roller; A connecting sleeve, which is a hollow cavity with an opening at one end. Two connecting sleeves are respectively sleeved on both ends of the transmission roller, and the connecting sleeves are located on the outside of the box; A support base, wherein a support groove is provided in the support base, the support base is fixed to the outside of the box body, and the support base is located below the connecting sleeve; a first connecting shaft connected to the connecting sleeve; a first bearing, wherein the first bearing is sleeved on an outer side of the first connecting shaft and embedded in the supporting groove; Limit screws, at least two of which are fixed in the support grooves, and at least two of which are located on a side of the first bearing facing away from the box body.

2. The roller-type electric heating furnace according to claim 1, characterized in that: The heating wire assembly comprises: rollers, at least part of which is located in the box, and both ends of the rollers pass through the refractory bricks and the box in sequence; The sleeve is a ceramic body, two sleeves are sleeved on both ends of the roller, and the sleeves are located inside the refractory bricks; Second thermal insulation cotton, the second thermal insulation cotton is sleeved on the outside of the sleeve, and the second thermal insulation cotton is in contact with the refractory brick; The heating wire body is wound around the outside of the roller, two ends of the heating wire body pass through the refractory bricks and the box body in sequence, and the heating wire body is electrically connected to a power supply.

3. The roller-type electric heating furnace according to claim 2, characterized in that: The roller-type electric heating furnace also includes: A connecting seat, wherein a connecting hole is provided in the connecting seat, the connecting seat is buckled at the opening of the transmission roller, and the support tube is located in the connecting hole; a cotter pin, the cotter pin sequentially passing through the connecting seat and the support tube; A connecting portion, the connecting portion being annular, connected to the connecting seat, embedded in the transmission roller, in contact with the inner wall of the transmission roller, and wound around the outer side of the support tube; Ventilation holes, at least two of which are provided in the connecting seat, and the ventilating holes are connected to the driving roller; Wherein, the connecting portion and the transmission roller are in interference fit.

4. The roller-type electric heating furnace according to claim 3, characterized in that: The outer wall of the connecting portion is inclined.

5. The roller-type electric heating furnace according to claim 4, characterized in that: The roller-type electric heating furnace also includes: an opening, the opening being arranged on an outer wall of the connecting sleeve; A clamping hole, wherein an internal thread is provided in the clamping hole and the clamping hole is provided through the connecting sleeve; A clamping screw, wherein an external thread is provided on an outer wall of the clamping screw, and the clamping screw is embedded in the clamping hole; Wherein, the internal thread is adapted to the external thread.

6. The roller-type electric heating furnace according to claim 5, characterized in that: The roller-type electric heating furnace also includes: A mounting ring, the mounting ring being located on the outside of the box body, the mounting ring being fixed to the outer wall of the box body, and the mounting ring being arranged on the outside of the transmission roller; The sealing ring is an elastic body, embedded in the mounting ring, and sleeved on the outer side of the transmission roller.

7. The roller-type electric heating furnace according to any one of claims 1 to 6, characterized in that: The width of the box body is 2550-5000mm; The diameter of the transmission roller is 81-150 mm; The diameter of the support tube is 15-65 mm.

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