Steel drying cylinder

Abstract

The utility model discloses a steel drying cylinder which comprises a steel cylinder body, sealing plates are fixedly connected to the left end and the right end of the steel cylinder body, the steel cylinder body is fixedly connected with the sealing plates in a welding mode, an outer welding groove and an inner welding groove are formed in the connecting positions of the steel cylinder body and the sealing plates, and filling rings are arranged on the outer surface and the interior of the steel cylinder body. The ends, away from the steel cylinder, of the two sealing plates are fixedly connected with an operation shaft head and a rotating shaft head correspondingly, a manhole, a sealing cover and a ventilation hole are formed in the surface of the left sealing plate, the sealing cover is rotationally connected with the left sealing plate, and the end, away from the manhole, of the sealing cover is fixedly connected with a mounting block. An auxiliary opening and closing mechanism is arranged between the mounting block and the left surface of the left side sealing plate, and a sealing piece is arranged in the ventilation hole. By means of the device, the strength and heat transfer efficiency of the drying cylinder are improved through steel materials, the situation that the drying cylinder damages added objects is reduced, and it is guaranteed that external components of the drying cylinder have sufficient stability in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of drying cylinders, in particular to a steel drying cylinder. Background Art

[0002] Drying cylinders are important equipment in papermaking, and most of the drying cylinders currently in use are cast iron cylinders, which not only have disadvantages such as complex casting process, long construction period, easy casting defects, and high cost, but also low strength and low thermal conductivity of the drying cylinders. In addition, the welded drying cylinders may damage the processed items during use. The "high-efficiency steel drying cylinder" disclosed on the China Patent Network has an application number of "201820867168.6". The strength of the drying cylinder is improved by using steel material and stress conversion grooves, but the drying cylinder still cannot reduce the possibility of damage to processed items during use. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a steel drying cylinder, which uses steel to replace iron, thereby improving the overall strength and heat conduction efficiency of the drying cylinder and improving the ease of use of the drying cylinder, while reducing the difficulty of cleaning the drying cylinder, reducing the possibility of damage to the processed items by the drying cylinder, and improving the stability of the external components of the drying cylinder when they are in action, thereby improving the safety during the use of the drying cylinder.

[0004] The utility model also provides a steel drying cylinder as mentioned above, comprising: a steel cylinder, the left and right ends of the steel cylinder are fixedly connected with sealing plates, the steel cylinder and the sealing plates are fixedly connected by welding, an external welding groove and an internal welding groove are formed at the connection between the steel cylinder and the sealing plate, filling rings are provided on the outer surface and the interior of the steel cylinder, the filling rings completely fill the external welding groove and the internal welding groove, the two sealing plates are fixedly connected with an operating shaft head and a rotating shaft head at one end away from the steel cylinder, a manhole, a sealing cover and a ventilation hole are provided on the surface of the sealing plate on the left side, the sealing cover is rotatably connected to the sealing plate on the left side, the end of the sealing cover away from the manhole is fixedly connected with a mounting block, an auxiliary opening and closing mechanism is provided between the mounting block and the left surface of the sealing plate on the left side, and a sealing member is provided inside the ventilation hole.

[0005] According to the steel drying cylinder described in the utility model, the auxiliary opening and closing mechanism is composed of a winder, a connecting rope, and a rotating wheel, and the winder is fixedly connected to the sealing plate located on the left side, so that the auxiliary opening and closing mechanism is convenient to use.

[0006] According to the steel drying cylinder of the utility model, the left surface of the sealing plate on the left side is fixedly connected with a limit cover, and the connecting rope passes through the limit cover and is fixedly connected with the mounting block, so as to avoid the connecting rope from hurting the user.

[0007] According to the steel drying cylinder of the utility model, the limit cover is made of plastic, and the length, width and height of the inner space of the limit cover are all greater than the diameter of the connecting rope, so as to reduce the situation that the limit cover wears the connecting rope.

[0008] According to the steel drying cylinder of the utility model, the surface of the limit cover is provided with a slot, and when the drying cylinder is maintained, the connecting rope is located inside the slot, thereby improving the limiting effect of the limit cover on the connecting rope.

[0009] According to the steel drying cylinder described in the utility model, the sealing member is composed of bolts and a sealing ring, and the sealing ring is in close contact with the sealing plate, so that the sealing member can be used conveniently.

[0010] According to the steel drying cylinder described in the utility model, a receiving groove is provided on the left surface of the sealing plate on the right side, and the end of the sealing member away from the ventilation hole is located inside the receiving groove, thereby reducing the contact area between the sealing member and impurities.

[0011] Beneficial Effects

[0012] 1. Compared with the prior art, the steel drying cylinder improves the overall strength and heat conduction efficiency of the drying cylinder and the ease of use of the drying cylinder through the steel cylinder body, ventilation holes, mounting blocks, connecting ropes, rotating wheels, winders, and filling rings, while reducing the difficulty of cleaning the drying cylinder and the risk of the drying cylinder damaging the processed items.

[0013] Compared with the prior art, the steel drying cylinder improves the stability of the external components of the drying cylinder when they are in action, and improves the safety during the use of the drying cylinder, through the winder, the limit cover, the rotating wheel, and the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a front right view of a steel drying cylinder of the utility model;

[0016] Figure 2 This is a front left view of a steel drying cylinder of the utility model;

[0017] Figure 3 This is a left-side structural diagram of the back side of a steel drying cylinder of the utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of a steel drying cylinder of the utility model;

[0019] Figure 5 The utility model is a steel drying cylinder Figure 2 The structure diagram at B is enlarged;

[0020] Figure 6 The utility model is a steel drying cylinder Figure 2 Enlarged structure diagram at C in the middle

[0021] Figure 7 The utility model is a steel drying cylinder Figure 4 Enlarged structural diagram at point D in the middle.

[0022] Legend:

[0023] 1. Steel cylinder; 2. Closing plate; 3. Rotating shaft head; 4. External welding groove; 5. Filling ring; 6. Ventilation hole; 7. Operating shaft head; 8. Seal; 9. Internal welding groove; 10. Manhole; 11. Cover; 12. Mounting block; 13. Auxiliary opening and closing mechanism; 14. Winding machine; 15. Connecting rope; 16. Limiting cover; 17. Rotating wheel; 18. Slot; 19. Bolt; 20. Sealing ring; 21. Storage groove. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-7 The utility model embodiment provides a steel drying cylinder, which includes: a steel cylinder 1, which is formed by rolling a steel plate through a plate rolling machine, and the left and right ends of the steel cylinder 1 are fixedly connected with sealing plates 2, and the steel cylinder 1 and the sealing plate 2 are fixedly connected by welding. An external welding groove 4 and an internal welding groove 9 are formed at the connection between the steel cylinder 1 and the sealing plate 2, and a filling ring 5 is provided on the outer surface and the interior of the steel cylinder 1, and the filling ring 5 completely fills the outer welding groove 4 and the inner welding groove 9. The filling ring 5 prevents the edge of the welding groove from damaging the processed objects, and at the same time prevents the welding groove from injuring the staff when the staff maintains and cleans the drying cylinder, thereby improving the safety of the drying cylinder during use.

[0026] The ends of the two sealing plates 2 away from the steel cylinder 1 are respectively fixedly connected with an operating shaft head 7 and a rotating shaft head 3. Both the operating shaft head 7 and the rotating shaft head 3 are steel forgings, so as to improve the overall strength of the drying cylinder and its related components. A manhole 10, a cover 11, and a ventilation hole 6 are arranged on the surface of the left sealing plate 2. The cover 11 is rotatably connected to the sealing plate 2 on the left. The manhole 10 is convenient for the staff to enter and exit the drying cylinder. The cover 11 is used to seal the manhole 10. The end of the sealing plate 11 away from the manhole 10 is fixedly connected with a mounting block 12, and the mounting block 12 is fixedly connected to the position An auxiliary opening and closing mechanism 13 is arranged between the left surface of the left sealing plate 2, and the auxiliary opening and closing mechanism 13 is composed of a winder 14, a connecting rope 15, and a rotating wheel 17. The winder 14 is fixedly connected to the sealing plate 2 on the left side. The winder 14 is a winding device commonly used to lift heavy objects by winding up the rope, wherein the winder 14 and the rotating wheel 17 cooperate with each other, and the lever structure is used to reduce the power burden of the winder 14 when lifting the sealing cover 11. At the same time, the connecting rope 15 is bent to improve the stability of the connecting rope 15 in a taut state.

[0027] A limiting cover 16 is fixedly connected to the left surface of the left side sealing plate 2, and the connecting rope 15 passes through the limiting cover 16 and is fixedly connected to the mounting block 12. The limiting cover 16 is made of plastic, and the length, width and height of the internal space of the limiting cover 16 are all greater than the diameter of the connecting rope 15. The limiting cover 16 reduces the portion of the connecting rope 15 exposed to the outside, thereby reducing the possibility of the connecting rope 15 hurting the user. The material of the limiting cover 16 reduces the wear effect of the limiting cover 16 on the connecting rope 15. A slot 18 is provided on the surface of the limiting cover 16. When maintaining the drying cylinder, the connecting rope 15 is located inside the slot 18. The slot 18 clamps the connecting rope 15 to improve the stability of the connecting rope 15 during the process of lifting the sealing cover 11, thereby avoiding the sliding and deviation of the connecting rope 15 during the process of lifting the sealing cover 11, and further improving the overall safety of the drying cylinder during use.

[0028] A seal 8 is provided inside the ventilation hole 6. The ventilation hole 6 improves the ventilation efficiency and the drying effect. The seal 8 is composed of bolts 19 and a sealing ring 20. The sealing ring 20 is in close contact with the sealing plate 2. The seal 8 improves the sealing of the ventilation hole 6 to avoid the existence of the ventilation hole 6 affecting the working effect of the drying cylinder when the ventilation hole 6 is not in use. A storage groove 21 is provided on the left surface of the right sealing plate 2. The end of the seal 8 away from the ventilation hole 6 is located inside the storage groove 21. The storage groove 21 prevents the seal 8 from being exposed to the outside, reduces the contact area between the seal 8 and the outside world, reduces the contamination and corrosion of the seal 8, and extends the service life of the seal 8.

[0029] Working principle: When installing the drying cylinder, the rotating shaft head 3 is connected to the power source of the rotating drying cylinder, the operating shaft head 7 is rotationally connected to the installation position of the drying cylinder, and the internal welding groove 9 of the drying cylinder is filled by the filling ring 5, so as to prevent the internal welding groove 9 from damaging the processed objects. When repairing the drying cylinder, first contact the restriction of the cover 11 on the manhole 10, and then use the auxiliary opening and closing mechanism 13 to lift and fix the cover 11. At this time, the staff can enter the interior of the drying cylinder through the manhole 10 to clean and maintain the drying cylinder.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A steel drying cylinder, characterized in that: include: A steel cylinder (1), wherein the left and right ends of the steel cylinder (1) are fixedly connected to sealing plates (2), the steel cylinder (1) and the sealing plates (2) are fixedly connected by welding, an outer welding groove (4) and an inner welding groove (9) are formed at the connection between the steel cylinder (1) and the sealing plates (2), and a filling ring (5) is provided on the outer surface and the interior of the steel cylinder (1), and the filling ring (5) completely fills the outer welding groove (4) and the inner welding groove (9); The ends of the two sealing plates (2) away from the steel cylinder (1) are respectively fixedly connected to an operating shaft head (7) and a rotating shaft head (3); a manhole (10), a sealing cover (11), and a ventilation hole (6) are arranged on the surface of the sealing plate (2) on the left side; the sealing cover (11) is rotatably connected to the sealing plate (2) on the left side; an installation block (12) is fixedly connected to the end of the sealing cover (11) away from the manhole (10); an auxiliary opening and closing mechanism (13) is arranged between the installation block (12) and the left surface of the sealing plate (2) on the left side; and a sealing member (8) is arranged inside the ventilation hole (6).

2. A steel drying cylinder according to claim 1, characterized in that: The auxiliary opening and closing mechanism (13) is composed of a winder (14), a connecting rope (15), and a rotating wheel (17); the winder (14) is fixedly connected to the sealing plate (2) located on the left side.

3. A steel drying cylinder according to claim 2, characterized in that: The left surface of the sealing plate (2) on the left side is fixedly connected to a limiting cover (16), and the connecting rope (15) passes through the limiting cover (16) and is fixedly connected to the mounting block (12).

4. A steel drying cylinder according to claim 3, characterized in that: The limiting cover (16) is made of plastic, and the length, width and height of the internal space of the limiting cover (16) are all greater than the diameter of the connecting rope (15).

5. A steel drying cylinder according to claim 3, characterized in that: The surface of the limiting cover (16) is provided with a slot (18), and when the drying cylinder is maintained, the connecting rope (15) is located inside the slot (18).

6. A steel drying cylinder according to claim 1, characterized in that: The sealing member (8) is composed of a bolt (19) and a sealing ring (20), and the sealing ring (20) is in tight contact with the sealing plate (2).

7. A steel drying cylinder according to claim 1, characterized in that: A receiving groove (21) is provided on the left surface of the sealing plate (2) located on the right side, and an end of the sealing member (8) away from the ventilation hole (6) is located inside the receiving groove (21).

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