Roller hearth type heating furnace

Abstract

The utility model provides a roller hearth type heating furnace, and belongs to the technical field of heating furnaces. The roller hearth type heating furnace comprises a box body, a transmission roller, a supporting plate, a connecting cylinder, a connecting shaft, a first bearing, a supporting seat and a limiting screw, the connecting shaft is sleeved with the first bearing, and the first bearing is placed in the supporting groove of the supporting seat, so that the supporting seat supports the connecting shaft, the connecting cylinder and the transmission roller through the first bearing, and the transmission stability of the transmission roller is improved. The supporting base, the first bearing and the connecting shaft are all located on the outer side of the box body, compared with the mode that the first bearing is embedded into the box body, the situation that the first bearing is damaged due to the fact that the first bearing is heated too high can be avoided through the heat insulation assembly arranged in the box body, and therefore the product quality is improved.

Description

Technical Field

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

[0002] In the field of automobile manufacturing, in order to meet the needs of high-temperature heating and rapid cooling of metal sheets in the hot stamping process, multiple roller bottom heating furnaces are usually arranged together to form a heating tunnel, and the metal sheets are driven to move in the furnace box by drive rollers.

[0003] The prior art (Announcement No.: CN220230021U) discloses a roller bottom tunnel heating furnace, including a base and a furnace body, a fixed groove is provided on the top of the base, and a transmission roller is rotatably connected to the front side of one side of the inner wall of the fixed groove, a second rotating rod is rotatably connected between the two sides of the back side of the inner wall of the fixed groove, and gears are fixedly connected to both sides of the surface of the transmission roller and the second rotating rod, and a chain is rotatably connected between the two opposite sides of the gear surfaces. The utility model relates to the technical field of heating furnaces. The roller bottom tunnel heating furnace is fixedly connected with a cleaning mechanism through the top between the opposite sides of the two chains, and the motor drives the gear to rotate through the transmission roller, and the gear drives the second rotating rod to rotate under the drive of the chain, so that the chain can transmit the cleaning mechanism and clean the surface of the transmission roller, so as to avoid impurities adhering to the transmission roller and not pollute the workpiece to be baked subsequently.

[0004] In the prior art, the driving roller is rotatably supported by the furnace body, so that the driving roller can rotate in the furnace body. In this way, when the furnace body rotatably supports the driving roller, the bearing must be sleeved on the outside of the driving roller and embedded in the furnace body; due to the high temperature in the furnace body, the bearing is easily overheated and damaged, thereby reducing the quality of the product. Utility Model Content

[0005] In order to solve the problem in the prior art that the high temperature in the furnace body easily causes the bearing to be overheated and damage the bearing, thereby reducing the product quality, the utility model provides a roller bottom heating furnace, which makes the support seat, the first bearing and the connecting shaft all located outside the box body. Compared with embedding the first bearing in the box body, the heat insulation component arranged in the box body can avoid the first bearing being overheated and damaged, thereby improving the product quality. The specific technical scheme is as follows:

[0006] A roller bottom heating furnace, the roller bottom heating furnace comprises: a box body, a transmission roller, a support plate, a connecting cylinder, a connecting shaft, a first bearing, a support seat and a limit screw; the box body is a hollow cavity with openings at both ends; a plurality of transmission rollers pass through the two side walls of the box body; the support plate is connected to the side wall of the box body, and the support plate is located below the transmission roller; two connecting cylinders are respectively mounted on the two ends of the transmission roller, and the two connecting cylinders are located on the outside of the box body; the connecting shaft is connected to the connecting cylinder; the first bearing is mounted on the outside of the connecting shaft; a support groove is provided in the support seat, the support groove is trapezoidal, the support seat is connected to the support plate, and the first bearing is placed in the support groove; at least two limit screws are fixed in the support groove, and at least two limit screws are located on the outside of the first bearing; wherein, there is a gap between the connecting cylinder and the support seat.

[0007] In addition, the roller hearth heating furnace in the above technical solution provided by the utility model may also have the following additional technical features:

[0008] In the above technical scheme, the roller bottom heating furnace also includes: a first transmission shaft, a second bearing, a connecting frame, a mounting seat, a second transmission shaft, a first bevel gear and a second bevel gear; the first transmission shaft is connected to a connecting shaft; the second bearing is sleeved on the outside of the first transmission shaft, and the second bearing is placed in the support groove; a plurality of connecting frames are connected to a side wall of the box body, and the connecting frames are located below the support plate; the mounting seat is fixed on a plurality of connecting frames; the second transmission shaft is embedded in the mounting seat, and the second transmission shaft is rotatably connected to the mounting seat; a plurality of first bevel gears are respectively sleeved on the outside of a plurality of first transmission shafts, and a plurality of first bevel gears are located above the second transmission shaft; a plurality of second bevel gears are sleeved on the outside of the second transmission shaft, and the second bevel gears are meshed with the first bevel gears.

[0009] In the above technical scheme, the roller bottom heating furnace also includes: a motor seat, a motor body, a first sprocket, a second sprocket and a chain; the motor seat is a hollow cavity, the motor seat is fixed at the bottom of the mounting seat, and the motor seat is communicated with the mounting seat; the motor body is provided with an output shaft, and the motor body is fixed on the outside of the motor seat; the first sprocket is sleeved on the outside of the output shaft of the motor body, and the first sprocket is embedded in the motor seat; the second sprocket is sleeved on the outside of the second transmission shaft, and the second sprocket is embedded in the mounting seat; the chain is sleeved on the outside of the first sprocket and the second sprocket at the same time.

[0010] In the above technical solution, the roller bottom heating furnace also includes: a mounting frame, a protective cover and a handle; the mounting frame is L-shaped, and multiple mounting frames are fixed on the side walls of the box body; the protective cover is L-shaped, one end of the protective cover is placed on multiple mounting frames, and the other end of the protective cover is placed on the mounting seat, and the protective cover is wrapped around the outside of the first bevel gear and the second bevel gear; the handle is U-shaped, and the handle is connected to the protective cover.

[0011] In the above technical solution, the roller bottom heating furnace also includes: insulation bricks and mounting grooves; the insulation bricks are triangular, multiple insulation bricks are embedded in the box, multiple insulation bricks are placed at the bottom of the box, and multiple insulation bricks are located below multiple drive rollers; the mounting groove is set at the bottom of the box, and at least part of the insulation bricks are embedded in the mounting groove.

[0012] In the above technical scheme, the roller bottom heating furnace also includes: an embedded plate, a first bottom plate, a threaded rod, a second bottom plate and an adjusting nut; the embedded plate is placed on the ground, and the embedded plate is located below the box body; the first bottom plate is connected to the bottom of the box body, and the first bottom plate is located above the embedded plate; a first external thread is provided on the outer wall of the threaded rod, and a plurality of threaded rods pass through the first bottom plate; the second bottom plate is connected to a plurality of threaded rods at the same time, and the second bottom plate is placed on the embedded plate; a first internal thread is provided in the adjusting nut, two adjusting nuts are mounted on the outside of the threaded rod, and the two adjusting nuts are respectively fitted with the upper and lower sides of the first bottom plate; wherein the first external thread is adapted to the first internal thread.

[0013] In the above technical scheme, the roller bottom heating furnace also includes: a first adjusting plate, a first adjusting screw, a second adjusting plate and a second adjusting screw; a second threaded hole is provided in the first adjusting plate, a second internal thread is provided in the second threaded hole, two first adjusting plates are fixed on the embedded plate, and the two first adjusting plates are located on the front and rear sides of the second bottom plate; a second external thread is provided on the outer wall of the first adjusting screw, the first adjusting screw passes through the second threaded hole of the first adjusting plate, and the first adjusting screw fits with the second bottom plate; a third threaded hole is provided in the second adjusting plate, a third internal thread is provided in the third threaded hole, the two second adjusting plates are fixed on the embedded plate, and the two second adjusting plates are located on the left and right sides of the second bottom plate; a third external thread is provided on the outer wall of the second adjusting screw, the second adjusting screw passes through the third threaded hole of the second adjusting plate, and the second adjusting screw fits with the second bottom plate; wherein, the second external thread is adapted to the second internal thread, and the third external thread is adapted to the third internal thread.

[0014] In the above technical solution, the roller hearth heating furnace further comprises: reinforcing ribs; the reinforcing ribs are triangular in shape, and the reinforcing ribs are connected to the first bottom plate and the side walls of the box at the same time.

[0015] In the above technical solution, the diameter of the driving roller is 90-150 mm.

[0016] Compared with the prior art, the roller bottom heating furnace of the utility model has the following beneficial effects:

[0017] 1. By installing the first bearing sleeve on the outside of the connecting shaft and placing the first bearing in the supporting groove of the supporting seat, the supporting seat can support the connecting shaft, the connecting cylinder and the transmission roller through the first bearing, thereby improving the stability of the transmission of the transmission roller. By making the supporting seat, the first bearing and the connecting shaft all located on the outside of the housing, compared with embedding the first bearing in the housing, the heat insulation component provided in the housing can be used to avoid the first bearing being damaged due to overheating, thereby improving the quality of the product. At the same time, since the supporting seat is located on the outside of the housing and supports the first bearing through the supporting seat, the supporting seat is less likely to be deformed by heat than supporting the first bearing through the housing, thereby improving the stability of the support seat supporting the transmission roller. Therefore, the supporting seat can support a longer transmission roller to improve the applicability of the product.

[0018] 2. By making the second transmission shaft drive the multiple first transmission shafts and the multiple transmission rollers to rotate respectively through the multiple first bevel gears and the multiple second bevel gears, compared with driving the multiple transmission rollers to rotate through sprockets and chains, the rotation of the transmission rollers is more stable, thereby improving the product experience.

[0019] 3. By fitting the first sprocket on the outside of the output shaft of the motor body, fitting the second sprocket on the outside of the second transmission shaft, and fitting the chain on the outside of the first sprocket and the second sprocket at the same time, the motor body can drive the first sprocket to rotate, so that the first sprocket drives the second transmission shaft to rotate through the chain and the second sprocket, thereby providing power for rotating the second transmission shaft.

[0020] 4. The protective cover is wrapped around the outer sides of the first bevel gear and the second bevel gear to protect the first bevel gear and the second bevel gear, thereby preventing parts from falling between the first bevel gear and the second bevel gear, thereby preventing the first bevel gear and the second bevel gear from being damaged.

[0021] 5. By placing multiple triangular insulation bricks at the bottom of the box and making multiple insulation bricks under multiple driving rollers, it is prevented that the driving rollers fall onto the insulation bricks when they are exercised, thereby avoiding the situation where the driving rollers are damaged by heat due to the high temperature of the inner wall of the box, so as to improve the quality of the product.

[0022] 6. By screwing the adjusting nut, the distance between the first bottom plate and the second bottom plate can be adjusted to level the box to improve the installation accuracy of the box.

[0023] 7. The first adjusting plate is fixed on the embedded plate, the first adjusting screw is passed through the second threaded hole of the first adjusting plate, and the first adjusting screw is fitted with the second bottom plate, so that the first adjusting screw is threadedly connected to the first adjusting plate, thereby screwing the first adjusting screw so that the first adjusting rod can push the second bottom plate to move, thereby adjusting the position of the box. The second adjusting plate is fixed on the embedded plate, the second adjusting screw is passed through the third threaded hole of the second adjusting plate, and the second adjusting screw is fitted with the second bottom plate, so that the second adjusting screw is threadedly connected to the second adjusting plate, thereby screwing the second adjusting screw so that the second adjusting rod can push the second bottom plate to move, thereby adjusting the position of the box.

[0024] 8. By connecting the triangular reinforcing ribs to the first bottom plate and the side walls of the box at the same time, the connection strength between the first bottom plate and the box is improved, thereby improving the overall strength of the product.

[0025] 9. By setting the diameter of the transmission roller to 90-150mm, the transmission roller can have a certain strength, so that when the effective heating width of the box is 2.9m to 5m, and the transmission roller is installed in the box and rotates, the transmission roller will not be deformed or broken, thereby improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is one of the three-dimensional diagrams of a roller hearth heating furnace of the utility model;

[0027] Figure 2 for Figure 1 A local enlarged view of point A;

[0028] Figure 3 for Figure 1 A partial enlarged view of point B;

[0029] Figure 4 This is the second stereoscopic diagram of a roller hearth heating furnace of the utility model;

[0030] Figure 5 for Figure 4 A partial enlarged view of point C;

[0031] Figure 6 It is a partial schematic diagram of the second transmission shaft and the motor body of the utility model;

[0032] in, Figures 1 to 6 The corresponding relationship between the reference numerals and component names in the figure is:

[0033] 10 box body, 11 transmission roller, 12 support plate, 13 connecting tube, 14 connecting shaft, 15 first bearing, 16 support seat, 17 support groove, 18 limit screw, 19 first transmission shaft, 20 second bearing, 21 connecting frame, 22 mounting seat, 23 second transmission shaft, 24 first bevel gear, 25 second bevel gear, 26 motor seat, 27 motor body, 28 first sprocket, 29 second sprocket, 30 chain, 31 mounting frame, 32 protective cover, 33 handle, 34 insulation brick, 35 embedded plate, 36 first bottom plate, 37 threaded rod, 38 second bottom plate, 39 adjusting nut, 40 first adjusting plate, 41 first adjusting screw, 42 second adjusting plate, 43 second adjusting screw, 44 reinforcing rib. DETAILED DESCRIPTION

[0034] The following is a combination of specific implementation cases and attached Figures 1 to 6 The present invention is further described below, but the present invention is not limited to these embodiments.

[0035] A roller hearth heating furnace, such as Figures 1 to 6 As shown, the roller bottom heating furnace comprises: a box body 10, a driving roller 11, a support plate 12, a connecting cylinder 13, a connecting shaft 14, a first bearing 15, a support seat 16 and a limit screw 18; the box body 10 is a hollow cavity with openings at both ends; a plurality of driving rollers 11 pass through the two side walls of the box body 10; the support plate 12 is connected to the side wall of the box body 10, and the support plate 12 is located below the driving roller 11; two connecting cylinders 13 are respectively mounted on the two ends of the driving roller 11, and the two connecting cylinders 13 are located The outer side of the box body 10; the connecting shaft 14 is connected to the connecting cylinder 13; the first bearing 15 is sleeved on the outer side of the connecting shaft 14; a supporting groove 17 is provided in the supporting seat 16, and the supporting groove 17 is trapezoidal, the supporting seat 16 is connected to the supporting plate 12, and the first bearing 15 is placed in the supporting groove 17; at least two limit screws 18 are fixed in the supporting groove 17, and at least two limit screws 18 are located on the outer side of the first bearing 15; wherein, there is a gap between the connecting cylinder 13 and the supporting seat 16.

[0036] By passing multiple transmission rollers 11 through the two side walls of the box body 10, the multiple transmission rollers 11 can rotate relative to the box body 10; by connecting the support plate 12 to the side wall of the box body 10 and positioning the support plate 12 below the transmission rollers 11, the box body 10 can support the support plate 12. By respectively sleeved two connecting cylinders 13 at both ends of the transmission rollers 11 and positioning the connecting cylinders 13 outside the box body 10, the transmission rollers 11 and the two connecting cylinders 13 can rotate synchronously, thereby enabling the connecting cylinders 13 to rotate outside the box body 10; at the same time, by connecting the connecting shaft 14 to the connecting cylinder 13, the connecting cylinder 13 can rotate synchronously with the connecting shaft 14. By connecting the support seat 16 with the support plate 12, the first bearing 15 is sleeved on the outside of the connecting shaft 14, and the first bearing 15 is placed in the support groove 17 of the support seat 16, so that the support plate 12 supports the support seat 16, so that the support seat 16 supports the connecting shaft 14 through the first bearing 15, so as to improve the rotation stability of the connecting shaft 14, the connecting cylinder 13 and the driving roller 11, and thus the connecting shaft 14 can rotate relative to the support seat 16. By fixing at least two limit screws 18 in the support groove 17, and making at least two limit screws 18 located on the outside of the first bearing 15, so that the limit screws 18 can limit the first bearing 15 and the driving roller 11, so as to avoid the driving roller 11 from moving in the horizontal direction, so as to improve the rotation stability of the driving roller 11; by making a gap between the connecting cylinder 13 and the support seat 16, so as to avoid the connecting cylinder 13 and the support seat 16 from interfering when the connecting cylinder 13 rotates, so as to improve the quality of the product.

[0037] With the above structure, the first bearing 15 is sleeved on the outside of the connecting shaft 14, and the first bearing 15 is placed in the supporting groove 17 of the supporting seat 16, so that the supporting seat 16 supports the connecting shaft 14, the connecting cylinder 13 and the driving roller 11 through the first bearing 15, thereby improving the stability of the driving roller 11. By making the supporting seat 16, the first bearing 15 and the connecting shaft 14 all located on the outside of the box 10, compared with embedding the first bearing 15 in the box 10, the heat insulation component provided in the box 10 can be used to avoid the first bearing 15 from being damaged due to overheating, thereby improving the quality of the product. At the same time, since the supporting seat 16 is located on the outside of the box 10 and supports the first bearing 15 through the supporting seat 16, compared with supporting the first bearing 15 through the box 10, the supporting seat 16 is not easily deformed by heat, thereby improving the stability of the supporting seat 16 supporting the driving roller 11, so the supporting seat 16 can support the driving roller 11 with a longer length, thereby improving the applicability of the product.

[0038] Specifically, a plurality of heating tube assemblies are installed in the box body 10 , and the plurality of heating tube assemblies are located above the plurality of driving rollers 11 , so that the heating tube assemblies heat the parts placed on the driving rollers 11 .

[0039] In the embodiments of the present invention, Figures 1 to 6 As shown, the roller bottom heating furnace also includes: a first transmission shaft 19, a second bearing 20, a connecting frame 21, a mounting seat 22, a second transmission shaft 23, a first bevel gear 24 and a second bevel gear 25; the first transmission shaft 19 is connected to a connecting shaft 14; the second bearing 20 is sleeved on the outside of the first transmission shaft 19, and the second bearing 20 is placed in the support groove 17; a plurality of connecting frames 21 are connected to a side wall of the box body 10, and the connecting frames 21 are located below the support plate 12; the mounting seat 22 is fixed on the plurality of connecting frames 21; the second transmission shaft 23 is embedded in the mounting seat 22, and the second transmission shaft 23 is rotatably connected to the mounting seat 22; a plurality of first bevel gears 24 are respectively sleeved on the outside of a plurality of first transmission shafts 19, and a plurality of first bevel gears 24 are located above the second transmission shaft 23; a plurality of second bevel gears 25 are sleeved on the outside of the second transmission shaft 23, and the second bevel gears 25 are meshed with the first bevel gears 24.

[0040] The first transmission shaft 19 is connected to a connecting shaft 14 to achieve synchronous rotation of the first transmission shaft 19 and the connecting shaft 14; at the same time, the second bearing 20 is mounted on the outside of the first transmission shaft 19 and the second bearing 20 is placed in the support groove 17, so that the support groove 17 of the support seat 16 supports the first transmission shaft 19 through the second bearing 20, thereby improving the rotation stability of the first transmission shaft 19. By connecting multiple connecting frames 21 to a side wall of the box body 10 and fixing the mounting base 22 on the multiple connecting frames 21, the box body 10 can support the mounting base 22 through the multiple connecting frames 21, thereby improving the stability of the mounting base 22; by embedding the second transmission shaft 23 into the mounting base 22 and making the second transmission shaft 23 rotatably connected to the mounting base 22, so that the mounting base 22 supports the second transmission shaft 23, so that the second transmission shaft 23 can rotate in the mounting base 22; by respectively sleeved the multiple first bevel gears 24 on the outside of the multiple first transmission shafts 19, sleeved the multiple second bevel gears 25 on the outside of the second transmission shaft 23, and making the second bevel gears 25 mesh with the first bevel gears 24, so that when the second transmission shaft 23 is rotated, the second transmission shaft 23 drives the first transmission shaft 19 and the transmission roller 11 to rotate through the second bevel gears 25 and the first bevel gears 24, thereby providing power for rotating the transmission roller 11.

[0041] By adopting the above structure, the second transmission shaft 23 drives the multiple first transmission shafts 19 and the multiple transmission rollers 11 to rotate respectively through the multiple first bevel gears 24 and the multiple second bevel gears 25. Compared with driving the multiple transmission rollers 11 to rotate through the sprocket and the chain 30, the rotation of the transmission rollers 11 is more stable, thereby improving the user experience of the product.

[0042] Specifically, the first bevel gear 24 is a 45-degree bevel gear, and the second bevel gear 25 is a 45-degree bevel gear.

[0043] In the embodiments of the present invention, Figures 1 to 6 As shown, the roller bottom heating furnace also includes: a motor seat 26, a motor body 27, a first sprocket 28, a second sprocket 29 and a chain 30; the motor seat 26 is a hollow cavity, the motor seat 26 is fixed to the bottom of the mounting seat 22, and the motor seat 26 is communicated with the mounting seat 22; the motor body 27 is provided with an output shaft, and the motor body 27 is fixed to the outside of the motor seat 26; the first sprocket 28 is sleeved on the outside of the output shaft of the motor body 27, and the first sprocket 28 is embedded in the motor seat 26; the second sprocket 29 is sleeved on the outside of the second transmission shaft 23, and the second sprocket 29 is embedded in the mounting seat 22; the chain 30 is sleeved on the outside of the first sprocket 28 and the second sprocket 29 at the same time.

[0044] By fixing the motor seat 26 on the bottom of the mounting seat 22 and fixing the motor body 27 on the outside of the motor seat 26, the mounting seat 22 supports the motor seat 26, and the motor seat 26 supports the motor body 27 to improve the stability of the motor body 27; by sleeved the first sprocket 28 on the outside of the output shaft of the motor body 27, the second sprocket 29 on the outside of the second transmission shaft 23, and the chain 30 on the outside of the first sprocket 28 and the second sprocket 29 at the same time, the motor body 27 can drive the first sprocket 28 to rotate, so that the first sprocket 28 drives the second transmission shaft 23 to rotate through the chain 30 and the second sprocket 29, thereby providing power for rotating the second transmission shaft 23.

[0045] In the embodiments of the present invention, Figures 1 to 6 As shown, the roller bottom heating furnace also includes: a mounting frame 31, a protective cover 32 and a handle 33; the mounting frame 31 is L-shaped, and multiple mounting frames 31 are fixed on the side wall of the box body 10; the protective cover 32 is L-shaped, one end of the protective cover 32 is placed on multiple mounting frames 31, and the other end of the protective cover 32 is placed on the mounting seat 22, and the protective cover 32 is wound around the outside of the first bevel gear 24 and the second bevel gear 25; the handle 33 is U-shaped, and the handle 33 is connected to the protective cover 32.

[0046] By fixing a plurality of L-shaped mounting frames 31 on the side wall of the box body 10, placing one end of the L-shaped protective cover 32 on the plurality of mounting frames 31, and placing the other end of the protective cover 32 on the mounting seat 22, the mounting seat 22 and the mounting frames 31 cooperate to support the protective cover 32, thereby improving the stability of the protective cover 32; at the same time, the protective cover 32 is wound around the outside of the first bevel gear 24 and the second bevel gear 25, so that the protective cover 32 protects the first bevel gear 24 and the second bevel gear 25, thereby preventing parts from falling between the first bevel gear 24 and the second bevel gear 25, thereby preventing the first bevel gear 24 and the second bevel gear 25 from being damaged. By connecting a U-shaped handle 33 to the protective cover 32, the protective cover 32 can be held by the handle 33, thereby improving the mobility of the protective cover 32.

[0047] In the embodiment of the present utility model, Figures 1 to 6 As shown, the roller bottom heating furnace also includes: insulation bricks 34 and mounting grooves; the insulation bricks 34 are triangular, multiple insulation bricks 34 are embedded in the box body 10, multiple insulation bricks 34 are placed at the bottom of the box body 10, and multiple insulation bricks 34 are located below multiple driving rollers 11; the mounting groove is set at the bottom of the box body 10, and at least part of the insulation bricks 34 are embedded in the mounting groove.

[0048] By placing a plurality of triangular insulation bricks 34 at the bottom of the box 10 and positioning the plurality of insulation bricks 34 below the plurality of drive rollers 11, it is prevented that the drive rollers 11 fall onto the insulation bricks 34 when they are exercised, thereby preventing the drive rollers 11 from being damaged by heat due to excessively high temperature of the inner wall of the box 10, thereby improving product quality. By setting a mounting groove at the bottom of the box 10 and embedding at least part of the insulation bricks 34 into the mounting groove, the insulation bricks 34 are clamped in the box 10, thereby preventing the insulation bricks 34 from being displaced, thereby improving the stability of the insulation bricks 34.

[0049] In the embodiment of the present utility model, Figures 1 to 6 As shown, the roller bottom heating furnace also includes: an embedded plate 35, a first bottom plate 36, a threaded rod 37, a second bottom plate 38 and an adjusting nut 39; the embedded plate 35 is placed on the ground, and the embedded plate 35 is located below the box body 10; the first bottom plate 36 is connected to the bottom of the box body 10, and the first bottom plate 36 is located above the embedded plate 35; a first external thread is provided on the outer wall of the threaded rod 37, and a plurality of threaded rods 37 pass through the first bottom plate 36; the second bottom plate 38 is connected to a plurality of threaded rods 37 at the same time, and the second bottom plate 38 is placed on the embedded plate 35; a first internal thread is provided in the adjusting nut 39, two adjusting nuts 39 are sleeved on the outer side of the threaded rod 37, and the two adjusting nuts 39 are respectively fitted with the upper and lower sides of the first bottom plate 36; wherein the first external thread is adapted to the first internal thread.

[0050] By connecting the first bottom plate 36 to the bottom of the box body 10 by welding, passing multiple threaded rods 37 through the first bottom plate 36, and putting two adjusting nuts 39 on the outside of the threaded rods 37, and making the two adjusting nuts 39 fit with the upper and lower sides of the first bottom plate 36 respectively, the threaded rods 37 are fixed to the first bottom plate 36 by the two adjusting nuts 39; by connecting the multiple threaded rods 37 to the second bottom plate 38, and placing the second bottom plate 38 on the embedded plate 35, the embedded plate 35 supports the box body 10 through the multiple threaded rods 37 and the bottom plate, thereby improving the stability of the box body 10.

[0051] With the above structure, the distance between the first bottom plate 36 and the second bottom plate 38 is adjusted by screwing the adjusting nut 39 , so that the box body 10 can be leveled to improve the installation accuracy of the box body 10 .

[0052] In the embodiment of the present utility model, Figures 1 to 6 As shown, the roller bottom heating furnace also includes: a first adjustment plate 40, a first adjustment screw 41, a second adjustment plate 42 and a second adjustment screw 43; a second threaded hole is provided in the first adjustment plate 40, a second internal thread is provided in the second threaded hole, two first adjustment plates 40 are fixed on the embedded plate 35, and the two first adjustment plates 40 are located on the front and rear sides of the second bottom plate 38; a second external thread is provided on the outer wall of the first adjustment screw 41, the first adjustment screw 41 passes through the second threaded hole of the first adjustment plate 40, and the first adjustment screw 41 and the second bottom plate 38 are connected. The plates 38 are fitted together; a third threaded hole is provided in the second adjusting plate 42, and a third internal thread is provided in the third threaded hole. The two second adjusting plates 42 are fixed on the embedded plate 35, and the two second adjusting plates 42 are located on the left and right sides of the second base plate 38; a third external thread is provided on the outer wall of the second adjusting screw 43, the second adjusting screw 43 passes through the third threaded hole of the second adjusting plate 42, and the second adjusting screw 43 is fitted with the second base plate 38; wherein, the second external thread is adapted to the second internal thread, and the third external thread is adapted to the third internal thread.

[0053] By fixing the first adjustment plate 40 on the embedded plate 35, passing the first adjustment screw 41 through the second threaded hole of the first adjustment plate 40, and making the first adjustment screw 41 fit with the second bottom plate 38, the first adjustment screw 41 is threadedly connected to the first adjustment plate 40, so that the first adjustment screw 41 is screwed, so that the first adjustment rod can push the second bottom plate 38 to move, thereby adjusting the position of the box body 10. By fixing the second adjustment plate 42 on the embedded plate 35, passing the second adjustment screw 43 through the third threaded hole of the second adjustment plate 42, and making the second adjustment screw 43 fit with the second bottom plate 38, the second adjustment screw 43 is threadedly connected to the second adjustment plate 42, so that the second adjustment screw 43 is screwed, so that the second adjustment rod can push the second bottom plate 38 to move, thereby adjusting the position of the box body 10.

[0054] In the embodiments of the present invention, Figures 1 to 6 As shown, the roller hearth heating furnace further includes: reinforcing ribs 44 ; the reinforcing ribs 44 are triangular in shape, and the reinforcing ribs 44 are connected to the first bottom plate 36 and the side wall of the box body 10 at the same time.

[0055] The triangular reinforcing ribs 44 are connected to the first bottom plate 36 and the side walls of the box body 10 at the same time to improve the connection strength between the first bottom plate 36 and the box body 10, thereby improving the overall strength of the product.

[0056] In the embodiments of the present invention, Figures 1 to 6 As shown, the diameter of the driving roller is 90-150 mm.

[0057] By setting the diameter of the drive roller 11 to 90-150 mm, the drive roller 11 can have a certain strength, so that when the effective heating width of the box 10 is 2.9 m to 5 m, and the drive roller 11 is installed in the box 10 and rotates, the drive roller 11 will not be deformed or broken, thereby improving the quality of the product.

[0058] Specifically, the transmission roller 11 is a ceramic body, and the material of the transmission roller is silicon dioxide.

[0059] Specifically, the box body 10 is formed by welding a steel plate and a steel pipe with a thickness of 5 mm, and the effective heating width of the box body 10 is 2.9 m to 5 m.

[0060] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A roller hearth heating furnace, characterized in that: The roller bottom heating furnace comprises: A box body, wherein the box body is a hollow cavity with openings at both ends; Transmission rollers, a plurality of transmission rollers passing through two side walls of the box; A support plate, the support plate is connected to the side wall of the box body, and the support plate is located below the driving roller; A connecting tube, wherein two connecting tubes are respectively sleeved on both ends of the driving roller, and the two connecting tubes are located outside the box body; A connecting shaft connected to the connecting cylinder; A first bearing, wherein the first bearing is sleeved on the outer side of the connecting shaft; A support seat, wherein a support groove is arranged in the support seat, the support groove is trapezoidal, the support seat is connected to the support plate, and the first bearing is placed in the support groove; Limit screws, at least two of which are fixed in the support grooves, and at least two of which are located outside the first bearing; Wherein, there is a gap between the connecting tube and the supporting seat.

2. A roller hearth heating furnace according to claim 1, characterized in that: The roller bottom heating furnace also includes: a first transmission shaft, the first transmission shaft being connected to one of the connecting shafts; a second bearing, wherein the second bearing is sleeved on the outer side of the first transmission shaft and the second bearing is placed in the support groove; A connecting frame, a plurality of the connecting frames are connected to a side wall of the box body, and the connecting frames are located below the supporting plate; A mounting seat, the mounting seat being fixed on the plurality of connecting frames; A second transmission shaft, the second transmission shaft is embedded in the mounting seat, and the second transmission shaft is rotatably connected to the mounting seat; A first bevel gear, wherein a plurality of the first bevel gears are respectively mounted on the outsides of a plurality of the first transmission shafts, and the plurality of the first bevel gears are located above the second transmission shafts; A plurality of second bevel gears are sleeved on the outside of the second transmission shaft, and the second bevel gears are meshed with the first bevel gears.

3. A roller hearth heating furnace according to claim 2, characterized in that: The roller hearth heating furnace also includes: A motor seat, wherein the motor seat is a hollow cavity, the motor seat is fixed to the bottom of the mounting seat, and the motor seat is connected to the mounting seat; A motor body, wherein the motor body is provided with an output shaft and the motor body is fixed on the outside of the motor seat; A first sprocket, wherein the first sprocket is sleeved on the outside of the output shaft of the motor body and embedded in the motor seat; A second sprocket, wherein the second sprocket is sleeved on the outer side of the second transmission shaft and embedded in the mounting seat; A chain is simultaneously sleeved on the outer sides of the first sprocket and the second sprocket.

4. The roller hearth heating furnace according to claim 3, characterized in that: The roller bottom heating furnace also includes: A mounting frame, the mounting frame is L-shaped, and a plurality of the mounting frames are fixed on the side wall of the box; A protective cover, wherein the protective cover is L-shaped, one end of the protective cover is placed on the plurality of mounting frames, the other end of the protective cover is placed on the mounting seat, and the protective cover is wound around the outside of the first bevel gear and the second bevel gear; A handle is U-shaped and connected to the protective cover.

5. The roller hearth heating furnace according to claim 1, characterized in that: The roller bottom heating furnace also includes: Insulation bricks, the insulation bricks are triangular, a plurality of the insulation bricks are embedded in the box, a plurality of the insulation bricks are placed at the bottom of the box, and a plurality of the insulation bricks are located below a plurality of the transmission rollers; The mounting groove is arranged at the bottom of the box body, and at least a part of the insulation bricks are embedded in the mounting groove.

6. The roller hearth heating furnace according to claim 1, characterized in that: The roller bottom heating furnace also includes: An embedded plate, which is placed on the ground and is located below the box body; A first bottom plate, the first bottom plate is connected to the bottom of the box body, and the first bottom plate is located above the embedded plate; A threaded rod, wherein the outer wall of the threaded rod is provided with a first external thread, and a plurality of the threaded rods pass through the first bottom plate; A second bottom plate, the second bottom plate is connected to the plurality of threaded rods at the same time, and the second bottom plate is placed on the embedded plate; An adjusting nut, wherein a first internal thread is provided in the adjusting nut, two adjusting nuts are sleeved on the outer side of the threaded rod, and the two adjusting nuts are respectively fitted with the upper and lower sides of the first bottom plate; Wherein, the first external thread is matched with the first internal thread.

7. The roller hearth heating furnace according to claim 6, characterized in that: The roller bottom heating furnace also includes: A first adjustment plate, wherein a second threaded hole is provided in the first adjustment plate, a second internal thread is provided in the second threaded hole, two first adjustment plates are fixed to the embedded plate, and the two first adjustment plates are located at the front and rear sides of the second bottom plate; A first adjusting screw, wherein a second external thread is arranged on an outer wall of the first adjusting screw, the first adjusting screw passes through a second threaded hole of the first adjusting plate, and the first adjusting screw is in contact with the second bottom plate; A second adjustment plate, wherein a third threaded hole is provided in the second adjustment plate, a third internal thread is provided in the third threaded hole, two second adjustment plates are fixed to the embedded plate, and the two second adjustment plates are located at left and right sides of the second bottom plate; A second adjusting screw, wherein a third external thread is arranged on an outer wall of the second adjusting screw, the second adjusting screw passes through a third threaded hole of the second adjusting plate, and the second adjusting screw is fitted with the second bottom plate; Wherein, the second external thread is matched with the second internal thread, and the third external thread is matched with the third internal thread.

8. The roller hearth heating furnace according to claim 7, characterized in that: The roller bottom heating furnace also includes: The reinforcing ribs are triangular in shape and are connected to the first bottom plate and the side walls of the box body at the same time.

9. The roller hearth heating furnace according to claim 1, characterized in that: The diameter of the transmission roller is 90-150 mm.

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