Rolling transmission mechanism of cylinder for drying

Abstract

The rolling transmission mechanism of the drying barrel comprises the drying barrel and a lower supporting frame, the lower supporting frame is located under the drying barrel, supporting plates are fixed to the top faces of the left end, the middle and the right end of the lower supporting frame respectively, the front portion and the rear portion of each supporting plate are movably connected with two transmission rollers through bearings respectively, and the transmission rollers are connected with the drying barrel through bearings respectively. Radial extending edges are formed on the outer side walls of the left portion and the right portion of each transmission roller, and the outer side walls of the flange connecting portions of the left portion, the middle portion and the right portion of the drying barrel abut against the top faces of the corresponding front transmission roller and the corresponding rear transmission roller in a pressed mode. The speed reducing motor drives the drying barrel to rotate, meanwhile, heat insulation is achieved through the heat insulation sleeve and the heat insulation gasket, heat transmitted to the speed reducing motor is reduced, normal operation is guaranteed, and the service life is guaranteed.

Description

Technical Field:

[0001] The utility model relates to the technical field of drying equipment, and more specifically to a rolling transmission mechanism for a drying cylinder. Background Art:

[0002] Existing fresh materials, such as bamboo slices, etc., need to be dried before use. The existing drying equipment generally uses electric heating for drying. Its drying box body is a fixed structure. After the materials are put into it, there is no need to move or be in motion, which affects the drying uniformity of the materials.

[0003] Therefore, a rotatable cylinder is now designed. Circulating hot air is introduced into the cylinder to dry the materials in the cylinder. For the cylinder to rotate, the existing method generally installs a transmission gear on the outer side wall of the cylinder. At the same time, a support frame is set below the cylinder, and a driving motor is installed on the support frame. The driving gear on the output shaft of the driving motor drives the transmission gear to operate. However, since circulating hot air is introduced into the cylinder, its heat will be transmitted to the driving gear through the transmission gear and then to the driving motor, causing the temperature of the driving motor to increase significantly, making it prone to damage due to high temperature and affecting its service life. Summary of the Utility Model:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a rolling transmission mechanism for a drying cylinder. It drives the drying cylinder to rotate through a reduction motor. At the same time, it realizes heat insulation through a heat insulation sleeve and a heat insulation gasket, reduces the heat transfer to the reduction motor, ensures its normal operation, and ensures its service life.

[0005] The solution of the utility model to solve the above technical problems is:

[0006] A rolling transmission mechanism for a drying cylinder includes a drying cylinder and a lower support frame. The lower support frame is directly below the drying cylinder. The top surfaces at the left end, middle, and right end of the lower support frame are all fixed with support plates. Both the front and rear parts of the support plates are movably connected with two transmission rollers through bearings. The outer side walls of the flange connection parts at the left, middle, and right parts of the drying cylinder are pressed against the top surfaces of the corresponding front and rear two transmission rollers.

[0007] A plurality of connection blocks are installed on the outer sides at the left and right parts of the drying cylinder. An outer ring gear is inserted and sleeved on the drying cylinder. The outer ring gear is fixed on the connecting plates fixed on the left and right sides of the connection blocks.

[0008] The drying cylinder body is formed by connecting multiple sub-cylinder bodies. Flange rings are welded and fixed on the outer side walls at the left and right ends of each sub-cylinder body. The two flange rings at the adjacent ends of the left and right adjacent sub-cylinder bodies are fixedly connected by bolts. The outer side walls of the two flange rings are on the same annular wall surface and form a flange connection part. Outer end plates are fixedly connected by bolts on the outer end surfaces of the flange rings at the outer ends of the drying cylinder bodies in the left and right parts. The outer side wall of the outer end plate and the outer side wall of the corresponding flange ring are on the same annular wall surface and form a flange connection part. The outer side wall of the flange connection part is pressed against the top surfaces of the two corresponding driving rollers in the front and back. Radial extension edges are formed on the outer side walls at the left and right ends of the driving roller or radial extension edges are formed on the outer side walls of the annular rings fixed at the left and right ends of the driving roller. The lower part of the flange connection part is between the two corresponding radial extension edges.

[0009] Bearing seats are fixed on the left and right parts of the top surfaces at the front and rear of the support plate. The shaft parts at the left and right ends of the driving roller are fixed on the inner rings of the bearings of the corresponding bearing seats.

[0010] A plurality of connection blocks are fixedly connected by bolts on the flange ring at one end of the sub-cylinder body. The inner side wall of the connection block is an arc-shaped wall surface which is close to the outer side wall of the corresponding sub-cylinder body. An extended connection part is formed at the outer side wall of the connection block. A through hole penetrating left and right is formed in the middle of the extended connection part. A heat insulation sleeve is in the through hole. The outer side wall of the heat insulation sleeve is pressed against or closely attached to the inner side wall of the through hole. A connecting rod is inserted or clamped in the middle through hole of the heat insulation sleeve. The left and right ends of the connecting rod extend out of both ends of the heat insulation sleeve and are inserted or clamped with heat insulation washers. The heat insulation washers are at the left and right sides of the heat insulation sleeve. Connection plates are fixedly connected by bolts on the left and right side walls of the outer annular gear ring. The left and right ends of the connecting rod extend out of the two heat insulation washers and are inserted in the connection through holes of the corresponding connection plates. The screwed parts formed at the left and right ends of the connecting rod extend out of the outer ends of the corresponding connection through holes and are inserted with washers and screwed with locking nuts. The washers are clamped between the locking nuts and the outer end surfaces of the corresponding connection plates. The heat insulation washers are clamped between the inner end surface of the connection plate and the left end surface or the right end surface of the extended connection part.

[0011] A front and rear extending fixing plate is fixed on the top surface of the lower support frame below the outer annular gear ring. Driving bearing seats are fixed on the left and right parts of the top surface at the front and rear of the fixing plate. Both ends of the main transmission shaft are fixed on the inner rings of the bearings of the two corresponding driving bearing seats. A driving gear ring is formed or fixed on the outer side wall in the middle of the main transmission shaft. The driving gear ring meshes with the corresponding outer annular gear ring;

[0012] A reduction motor is fixed on the top surface of the lower support frame on one side of the fixing plate. One end of the corresponding main transmission shaft extends out of the corresponding driving bearing seat and is connected with the output shaft of the reduction motor through a coupling.

[0013] The outstanding effects of the utility model are:

[0014] It drives the drying cylinder to rotate through a reduction motor. At the same time, it achieves heat insulation through a heat insulation sleeve and a heat insulation gasket to reduce the heat transferred to the reduction motor, thereby ensuring its normal operation and service life. Description of the drawings:

[0015] Figure 1 It is a partial structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial enlarged view of the utility model;

[0017] Figure 3 It is a partial cross-sectional view at the left end of the utility model;

[0018] Figure 4 is a partial cross-sectional view of another part of the utility model;

[0019] Figure 5 It is a partial cross-sectional view at the right end of the utility model;

[0020] Figure 6 It is a schematic diagram of the local structure at the outer annular gear ring;

[0021] Figure 7 yes Figure 6 AA section view;

[0022] Figure 8 It is a schematic diagram of the local structure of the angle change at the outer annular gear ring. Specific implementation method:

[0023] For example, see Figures 1 to 8 As shown, a rolling transmission mechanism for a drying cylinder comprises a drying cylinder 10 and a lower support frame 20, wherein the lower support frame 20 is located directly below the drying cylinder 10, and support plates are fixed to the top surfaces of the left end, middle part and right end of the lower support frame 20, and the front and rear parts of the support plates are movably connected to two transmission rollers 21 through bearings, and the outer side walls of the flange connection parts 11 of the left, middle and right parts of the drying cylinder 10 are pressed against the top surfaces of the corresponding front and rear two transmission rollers 21;

[0024] A plurality of connection blocks 12 are installed on the outer sides of the left and right parts of the drying cylinder 10 , and an outer annular gear ring 13 is inserted into the drying cylinder 10 , and the outer annular gear ring 13 is fixed to connection plates 14 fixed on the left and right sides of the connection blocks 12 .

[0025] All the connection blocks 12 on each outer annular gear ring 13 are evenly distributed on the outer sides of the left and right parts of the drying cylinder 10 with the central axis of the drying cylinder 10 as the center.

[0026] Furthermore, the drying cylinder body 10 is formed by connecting a plurality of sub-cylinder bodies 15. Flange rings 16 are welded and fixed on the outer side walls at the left and right ends of each sub-cylinder body 15. The two flange rings 16 at the adjacent ends of the left and right adjacent sub-cylinder bodies 15 are fixedly connected by bolts. A raised ring is formed inside the left end face of the right flange ring 16, and an annular groove is formed inside the right end face of the left flange ring 16. The raised ring is nested in the annular groove. The left end face of the right flange ring 16 is pressed against the right end face of the left flange ring 16 and fixedly connected by bolts;

[0027] The outer side walls of the two flange rings 16 are on the same annular wall surface and form a flange connection part 11. Outer end plates 17 are fixedly connected by bolts on the outer end faces of the flange rings 16 at the outer ends of the drying cylinder bodies 10 on the left and right sides. An annular groove is formed inside the right end face of the left outer end plate 17, and the raised ring inside the left end face of the right flange ring 16 is nested in the inserted annular groove. The right end face of the left outer end plate 17 is pressed against the left end face of the right flange ring 16 and fixedly connected by bolts; A raised ring is formed inside the left end face of the outer end plate 17 of the drying cylinder body 10 on the right side, and it is nested in the annular groove formed inside the right end face of the flange ring 16 on its left side. The left end face of the outer end plate 17 on the right side is pressed against the right end face of the corresponding flange ring 16 and fixedly connected by bolts;

[0028] The outer side wall of the outer end plate 17 and the outer side wall of the corresponding flange ring 16 are on the same annular wall surface and form a flange connection part 11. The outer side wall of the flange connection part 11 is pressed against the top surfaces of the two corresponding drive rollers 21 in the front and back (i.e., at the topmost position close to the drive rollers 21). Radial extension edges 22 are formed on the outer side walls at the left and right ends of the drive rollers 21 or on the outer side walls of the annular rings fixed at the left and right ends of the drive rollers 21. The lower part of the flange connection part 11 is between the two corresponding radial extension edges 22.

[0029] Bearing seats are fixed on the left and right parts of the top surfaces of the front and rear parts of the support plate. The shaft parts at the left and right ends of the drive rollers 21 are fixed on the inner rings of the bearings of the corresponding bearing seats.

[0030] A plurality of connecting blocks 12 are fixedly connected by bolts on the two flange rings 16 of the corresponding two split cylinders 15. The connecting blocks 12 are located at one end face of one of the flange rings 16. The inner side wall of the connecting block 12 is an arc-shaped wall surface which is close to the outer side wall of the corresponding split cylinder 15. An extended connecting portion 121 is formed on the outer side wall of the connecting block 12. A through hole penetrating left and right is formed in the middle of the extended connecting portion 121. A heat insulation sleeve 122 is located in the through hole. The outer side wall of the heat insulation sleeve 122 is pressed against or closely attached to the inner side wall of the through hole. A connecting rod 123 is inserted or clamped in the middle through hole of the heat insulation sleeve 122. The left and right ends of the connecting rod 123 extend out of the two ends of the heat insulation sleeve 122 and are inserted or clamped with heat insulation washers 124. The heat insulation washers 124 are located on the left and right sides of the heat insulation sleeve 122. Connecting plates 14 are fixedly connected by bolts on the left side wall and the right side wall of the outer ring gear 13. The left and right ends of the connecting rod 123 extend out of the two heat insulation washers 124 and are inserted into the connecting through holes of the corresponding connecting plates 14. The screwed portions formed at the left and right ends of the connecting rod 123 extend out of the outer ends of the corresponding connecting through holes and are inserted with washers and screwed with locking nuts. The washers are clamped between the locking nuts and the outer end faces of the corresponding connecting plates 14. The heat insulation washers 124 are clamped between the inner end face of the connecting plate 14 and the left end face or the right end face of the extended connecting portion 121.

[0031] On the top surface of the lower support frame 20 below the outer ring gear 13, a front and rear extending fixing plate is fixed. Transmission bearing seats are fixed on the front part, the rear part, the left part and the right part of the top surface of the fixing plate. Both ends of the main transmission shaft 126 are fixed on the bearing inner rings of the left and right corresponding two transmission bearing seats. A driving gear ring 127 is formed or fixed on the outer side wall in the middle of the main transmission shaft 126. The driving gear ring 127 meshes with the corresponding outer ring gear 13.

[0032] On the top surface of the lower support frame 20 on one side of the fixing plate, a reduction motor 19 is fixed. One end of the corresponding main transmission shaft 126 extends out of the corresponding transmission bearing seat and is connected with the output shaft of the reduction motor 19 through a coupling.

[0033] Both the heat insulation washer 124 and the heat insulation sleeve 122 are made of mica material, and they have good heat insulation effect.

[0034] When this embodiment is in use, the reduction motor 19 operates to make the driving gear ring 127 rotate, driving the corresponding outer ring gear 13 to rotate, so as to realize the rotation of the drying cylinder 10. During the rotation process, due to the heat insulation effect of the heat insulation washer 124 and the heat insulation sleeve 122, the heat transfer to the reduction motor 19 is greatly reduced, ensuring its normal operation and service life.

Claims

1. A rolling transmission mechanism for a drying cylinder, comprising a drying cylinder (10) and a lower support frame (20), characterized in that: The lower support frame (20) is located directly below the drying cylinder (10), and support plates are fixed to the top surfaces of the left end, middle part and right end of the lower support frame (20), and the front and rear parts of the support plates are movably connected to two driving rollers (21) through bearings, and the outer side walls of the flange connection parts (11) at the left, middle and right parts of the drying cylinder (10) are pressed against the top surfaces of the corresponding front and rear two driving rollers (21); A plurality of connection blocks (12) are installed on the outer sides of the left and right parts of the drying cylinder (10); an outer annular gear ring (13) is inserted into the drying cylinder (10); and the outer annular gear ring (13) is fixed to connection plates (14) fixed on the left and right sides of the connection blocks (12).

2. A rolling transmission mechanism for a drying drum according to claim 1, characterized in that: The corresponding plurality of connection blocks (12) are evenly distributed on the outer sides of the left and right parts of the drying cylinder (10) with the central axis of the drying cylinder (10) as the center.

3. The rolling transmission mechanism of a drying drum according to claim 1, characterized in that: The drying cylinder (10) is formed by connecting a plurality of sub-cylinders (15). Flange rings (16) are welded and fixed on the outer side walls of the left and right ends of each sub-cylinder (15). The two flange rings (16) at the adjacent ends of the two adjacent sub-cylinders (15) are fixedly connected by bolts. The outer side walls of the two flange rings (16) are located on the same annular wall surface and form a flange connection part (11). The outer end surfaces of the flange rings (16) at the outer ends of the left and right drying cylinders (10) are fixedly connected with outer end plates (17) by bolts. The outer wall of the outer end plate (17) and the outer wall of the corresponding flange ring (16) are located on the same annular wall surface and form a flange connection part (11). The outer wall of the flange connection part (11) is pressed against the top surfaces of the two corresponding front and rear transmission rollers (21). The outer walls of the left and right ends of the transmission roller (21) are formed with radially extending edges (22) or the outer walls of the annular rings fixed at the left and right ends of the transmission roller (21) are formed with radially extending edges (22). The lower part of the flange connection part (11) is located between the two corresponding radially extending edges (22).

4. A rolling transmission mechanism for a drying drum according to claim 1, characterized in that: The left and right parts of the top surfaces of the front and rear parts of the support plate are fixed with bearing seats, and the rotating shaft parts at the left and right ends of the driving roller (21) are fixed on the inner rings of the bearings of the corresponding bearing seats.

5. The rolling transmission mechanism of a drying drum according to claim 3, characterized in that: A plurality of connection blocks (12) are fixedly connected to a flange ring (16) at one end of the sub-cylinder body (15) by bolts, the inner wall of the connection block (12) is an arc-shaped wall surface which is close to the outer wall of the corresponding sub-cylinder body (15), an extended connection part (121) is formed at the outer wall of the connection block (12), and a through hole is formed in the middle of the extended connection part (121) which passes through the left and right sides, and the heat insulation sleeve (122) is located in the through hole, and the outer wall of the heat insulation sleeve (122) is pressed against or tightly attached to the inner wall of the through hole, and the heat insulation sleeve (122) is provided with a plurality of connection blocks (12) which are fixedly connected to the flange ring (16) at one end of the sub-cylinder body (15), and the inner wall of the connection block (12) is formed with an extended connection part (121) which passes through the left and right sides. 2) is inserted or clamped in the middle through hole of the outer ring gear (13), the left and right ends of the connecting rod (123) extend out of the two ends of the heat insulating sleeve (122) and are inserted or clamped with heat insulating washers (124), the heat insulating washers (124) are located on the left and right sides of the heat insulating sleeve (122), and the left and right walls of the outer ring gear (13) are fixedly connected with a connecting plate (14) by bolts, and the left and right ends of the connecting rod (123) extend two heat insulating washers (124) and are installed in the connecting through holes of the corresponding connecting plates (14).

6. A rolling transmission mechanism for a drying drum according to claim 3, characterized in that: A fixing plate extending forward and backward is fixed on the top surface of the lower support frame (20) below the outer annular gear ring (13), and transmission bearing seats are fixed to the left and right parts of the front and rear top surfaces of the fixing plate. The two ends of the main transmission shaft (126) are fixed to the inner rings of the bearings of the two corresponding transmission bearing seats on the left and right. A driving gear ring (127) is formed or fixed on the outer side wall of the middle part of the main transmission shaft (126), and the driving gear ring (127) is meshed with the corresponding outer annular gear ring (13); A reduction motor (19) is fixed on the top surface of the lower support frame (20) on one side of the fixed plate, and one end of the corresponding main transmission shaft (126) extends out of the corresponding transmission bearing seat and is connected to the output shaft of the reduction motor (19) through a coupling.

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