Sealing structure of ring rolling machine
By using sealing components of fixed seats, external compression covers, partition rings, air seal rings and sweeping jackets in the ring mill, the problem that the existing ring mill seal structure cannot effectively prevent external water and mist from entering, achieving better sealing performance and lower maintenance costs.
Patent Information
- Application Number
- CN202422097577.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing sealing structure of the roller ring machine cannot effectively prevent external water and mist from entering, causing rust of parts and damage to lubricating oil, increasing maintenance frequency and cost.
The sealing component including a fixing seat, an outer compression cover, a partition ring, an air seal ring and a swivel outer jacket is adopted. The sealing is achieved through the method of engaging, pressing and forming an air film to ensure that the connection between the fixing surface and the rotating shaft has a good sealing effect.
It significantly improves the sealing performance of the ring machine sealing structure, prevents external water and mist from entering, thereby extending the service life of parts and reducing maintenance costs.
Smart Images
Figure CN222977410U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of ring rolling machines, and particularly relates to a sealing structure of a ring rolling machine. Background Art
[0002] In the process of manufacturing ring forgings, a ring rolling machine is involved. However, during the manufacturing process of ring forgings, since the ring rolling machine is located in a pit, there is a large amount of water and mist around the ring rolling machine. Once the water and mist enter the inside of the ring rolling machine, it will cause the components arranged in the box body of the ring rolling machine to rust, and at the same time, it will affect the lubricating oil in the box body of the ring rolling machine, resulting in a high maintenance frequency and high maintenance cost of the ring rolling machine.
[0003] The existing sealing structure of the ring rolling machine is relatively simple. Most of them only seal through a sealing ring installed at the rotating shaft, and cannot effectively prevent external substances from entering the inside of the ring rolling gearbox, so the sealing effect is poor. Content of the Utility Model
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A sealing structure of a ring rolling machine includes a fixed surface and a rotating shaft passing through the inside of the fixed surface. A fixed sealing component located outside the rotating shaft is fixedly installed on the outside of the fixed surface. The fixed sealing component includes a fixed seat fixedly installed on the outside of the fixed surface. An axial hole is arranged inside the fixed seat. The rotating shaft passes through the inside of the axial hole. A spacer ring and air sealing rings located on both the inner and outer sides of the spacer ring are movably installed inside the axial hole. An outer pressing cover is movably clamped on the outside of the fixed seat. A trachea communicated with the axial hole is fixedly connected to the outside of the fixed seat. A first fixed bolt located inside the fixed surface is threadedly connected to the inside of the fixed sealing component. A rotating and sweeping outer sleeve is movably clamped on the outside of the fixed sealing component.
[0006] The further improvement of the technical solution of the utility model lies in that: Matching fixed holes are arranged inside both the fixed seat and the outer pressing cover, and the first fixed bolt passes through the fixed holes and is threadedly connected to the inside of the fixed surface.
[0007] The further improvement of the technical solution of the utility model lies in that: A rear sealing ring is movably clamped at the rear side of the fixed seat, and the rear sealing ring is pressed between the fixed surface and the fixed seat.
[0008] The further improvement of the technical solution of the utility model lies in that: Slots corresponding to the spacer ring and the air sealing rings are arranged inside the axial hole.
[0009] The further improvement of the technical solution of the utility model lies in that: The trachea is communicated with the middle of the axial hole, and an opening is arranged on the inner side of the spacer ring.
[0010] A further improvement of the technical solution of the present utility model lies in that: the rotary sweeping outer sleeve includes a left connecting shell and a right connecting shell. Sealing gaskets are arranged on the inner sides of the left connecting shell and the right connecting shell. Connecting ear plates are arranged on the inner sides of the left connecting shell and the right connecting shell, and fixing bolts II are threadedly connected inside the connecting ear plates.
[0011] A further improvement of the technical solution of the present utility model lies in that: a clamping groove is formed on the outer side of the outer pressing cover, and convex edges located in the clamping groove are arranged on the inner sides of the left connecting shell and the right connecting shell.
[0012] A further improvement of the technical solution of the present utility model lies in that: the outer sides of the left connecting shell and the right connecting shell are arranged in a conical shape.
[0013] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows:
[0014] 1. The present utility model provides a sealing structure for a ring rolling machine. By using the fixed seat and the outer pressing cover to be mutually clamped, the spacer ring and the air sealing ring are pressed inside the shaft hole. The rear sealing ring is pressed tightly between the fixed surface and the fixed seat for sealing. At the same time, an air cavity is formed between the air sealing ring located in the shaft hole and the rotating shaft. Sealing gas is filled into the air cavity through a trachea, and an air film is formed at the connection between the air sealing ring and the rotating shaft, thereby achieving sealing, so as to improve the sealing effect at the connection between the fixed surface and the rotating shaft, prevent external water or mist from entering, and improve the sealing performance.
[0015] 2. The present utility model provides a sealing structure for a ring rolling machine. The rotary sweeping outer sleeve installed outside the rotating shaft is located in front of the outer pressing cover. The left connecting shell and the right connecting shell are locked with each other by fixing bolts II, and the sealing gasket is used to ensure the sealing at the joint. The left connecting shell and the right connecting shell block external water and rotate and sweep through their inclined surfaces to avoid water accumulation, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic connection structure diagram of the sealing structure of the ring rolling machine of the present utility model;
[0017] Figure 2 is a schematic position diagram of the rotary sweeping outer sleeve of the present utility model;
[0018] Figure 3 is a schematic structural diagram of the fixed sealing assembly of the present utility model;
[0019] Figure 4 is a schematic cross-sectional structural diagram of the fixed sealing assembly of the present utility model;
[0020] Figure 5 is a schematic structural diagram of the rotary sweeping outer sleeve of the present utility model.
[0021] In the figure: 1. Fixed surface; 2. Rotating shaft; 3. Fixed sealing assembly; 31. Fixed seat; 32. Shaft hole; 33. Spacer ring; 34. Gas seal ring; 35. Outer pressing cover; 36. Fixed hole; 37. Air pipe; 38. Rear sealing ring; 39. Card slot; 4. First fixing bolt; 5. Rotary sweeping outer sleeve; 51. Left connecting shell; 52. Right connecting shell; 53. Sealing cushion layer; 54. Connecting ear plate; 55. Second fixing bolt. Detailed implementation mode
[0022] The following further elaborates on the present utility model in detail:
[0023] As Figures 1 to 5 shown, the present utility model provides a sealing structure for a ring rolling machine, including a fixed surface 1 and a rotating shaft 2 passing through the inside of the fixed surface 1. A fixed sealing assembly 3 located outside the rotating shaft 2 is fixedly installed on the outside of the fixed surface 1. The fixed sealing assembly 3 includes a fixed seat 31 fixedly installed on the outside of the fixed surface 1. An inner shaft hole 32 is provided inside the fixed seat 31. The rotating shaft 2 passes through the inside of the shaft hole 32. A spacer ring 33 and gas seal rings 34 located on both the inner and outer sides of the spacer ring 33 are movably installed inside the shaft hole 32. An outer pressing cover 35 is movably clamped on the outside of the fixed seat 31. An air pipe 37 communicating with the shaft hole 32 is fixedly connected to the outside of the fixed seat 31. A first fixing bolt 4 is threadedly connected inside the fixed surface 1 through a fixed hole 36 inside the fixed sealing assembly 3. A rotary sweeping outer sleeve 5 is movably clamped on the outside of the fixed sealing assembly 3.
[0024] By using the mutual clamping of the fixed seat 31 and the outer pressing cover 35, the spacer ring 33 and the gas seal rings 34 are pressed inside the shaft hole 32. Sealing is achieved by pressing the rear sealing ring 38 between the fixed surface 1 and the fixed seat 31. At the same time, an air cavity is formed between the gas seal ring 34 located inside the shaft hole 32 and the rotating shaft 2. Sealing gas is filled into the air cavity through the air pipe 37 to form an air film at the connection between the gas seal ring 34 and the rotating shaft 2, thereby achieving sealing, so as to improve the sealing effect at the connection between the fixed surface 1 and the rotating shaft 2, prevent external water or fog from entering, and improve the sealing performance. At the same time, the rotary sweeping outer sleeve 5 installed outside the rotating shaft 2 is located in front of the outer pressing cover 35. The left connecting shell 51 and the right connecting shell 52 are locked with each other by the second fixing bolt 55, and the sealing cushion layer 53 is used to ensure the sealing at the connection. The left connecting shell 51 and the right connecting shell 52 block external water and rotate and sweep through their inclined surfaces to avoid water accumulation, thereby improving the sealing effect.
[0025] As Figure 1 and Figure 3 shown, matching fixed holes 36 are provided inside both the fixed seat 31 and the outer pressing cover 35. The first fixing bolt 4 passes through the fixed hole 36 and is threadedly connected inside the fixed surface 1.
[0026] A rear sealing ring 38 is movably clamped to the rear side of the fixed seat 31, and the rear sealing ring 38 is pressed between the fixed surface 1 and the fixed seat 31.
[0027] The outer pressing cover 35 and the inside of the fixed seat 31 are pressed through the first fixing bolt 4, and the fixed seat 31 is pressed on the outside of the fixed surface 1. A rear sealing ring 38 is arranged between the fixed surface 1 and the fixed seat 31. The sealing of the joint between the fixed surface 1 and the fixed seat 31 is ensured by the extrusion of the rear sealing ring 38. At the same time, the sealing effect is improved by pressing the outer pressing cover 35 on the outside of the fixed seat 31.
[0028] As Figure 3 and Figure 4 shown, slots corresponding to the spacer ring 33 and the air seal ring 34 are arranged inside the shaft hole 32.
[0029] The air pipe 37 communicates with the middle part of the shaft hole 32, and an opening is arranged inside the spacer ring 33.
[0030] The air seal ring 34 is a fluororubber air seal ring resistant to high temperature, acid, alkali and wear. It is clamped on the inner and outer sides of the spacer ring 33. When pressed by the fixed seat 31 and the outer pressing cover 35, the air seal ring 34 is located between the fixed seat 31, the spacer ring 33 and the outer pressing cover 35 for extrusion sealing. Sealing gas is filled between the air seal rings 34 through the air pipe 37 to form an air film at the interface between the air seal ring 34 and the rotating shaft 2 to ensure the sealing performance.
[0031] As Figure 5 shown, the rotary sweeping outer sleeve 5 includes a left connecting shell 51 and a right connecting shell 52. Sealing gaskets 53 are arranged on the inner sides of the left connecting shell 51 and the right connecting shell 52. Connecting lugs 54 are arranged on the inner sides of the left connecting shell 51 and the right connecting shell 52, and a second fixing bolt 55 is threadedly connected inside the connecting lugs 54.
[0032] The convex edges on the rear sides of the left connecting shell 51 and the right connecting shell 52 are stuck in the clamping groove 39 to provide limit. When the rotating shaft 2 rotates, it drives the rotary sweeping outer sleeve 5 to rotate. The inclined left connecting shell 51 cooperates with the right connecting shell 52 to block the fixed sealing assembly 3 and at the same time makes the water flowing onto the rotary sweeping outer sleeve 5 be swept away by rotation, avoiding the accumulation of water outside the fixed sealing assembly 3 and causing leakage, and improving the sealing effect.
[0033] A clamping groove 39 is arranged on the outside of the outer pressing cover 35, and convex edges located in the clamping groove 39 are arranged on the inner sides of the left connecting shell 51 and the right connecting shell 52.
[0034] The convex edges on the inner sides of the left connecting shell 51 and the right connecting shell 52 are rotated in the clamping groove 39 for limiting.
[0035] As Figure 5 shown, the outer sides of the left connecting shell 51 and the right connecting shell 52 are arranged in a conical shape.
[0036] By setting the outer sides of the left connecting shell 51 and the right connecting shell 52 to be conical, the rotation of the rotary sweeping outer sleeve 5 is avoided to prevent the accumulation of water and improve the sealing effect.
[0037] Next, the working principle of the sealing structure of this ring rolling machine will be specifically described.
[0038] As Figures 1 to 5 shown, by setting a connecting hole corresponding to the fixing hole 36 on the outer side of the fixing surface 1, by sleeving the fixing seat 31 outside the rotating shaft 2, and snapping the spacer ring 33 that fixedly connects the gas sealing rings 34 on both the inner and outer sides into the shaft hole 32, the gas sealing ring 34 is pressed tightly against the inner rear side of the shaft hole 32. And by snapping the outer pressing cover 35 into the front of the fixing seat 31, the fixing hole 36 in the outer pressing cover 35 corresponds to the fixing hole 36 in the fixing seat 31. Use the first fixing bolt 4 to penetrate through the fixing hole 36 from the outside of the outer pressing cover 35 and be threadedly connected to the connecting hole on the outer side of the fixing surface 1. By the first fixing bolt 4, the fixing hole 36 is pressed tightly against the outside of the fixing seat 31, and the fixing seat 31 is pressed tightly against the outside of the fixing surface 1. By the fixing seat 31 pressing the rear sealing ring 38 located between the fixing surface 1 and the fixing seat 31 to ensure the sealing of the contact surface, and by the outer pressing cover 35 cooperating with the fixing seat 31 to press the gas sealing ring 34 in the shaft hole 32 so that it is closely attached between the inner wall of the shaft hole 32 and the rotating shaft 2. By filling the gas chamber formed between the gas sealing rings 34 with sealing gas through the air pipe 37 to form a gas film for sealing, a good sealing effect is achieved. The left connecting shell 51 and the right connecting shell 52 are butted and clamped on the outside of the rotating shaft 2 from both sides, and are sealed by the sealing cushion layer 53 fitting the outer wall of the rotating shaft 2. By using the second fixing bolt 55 to pass through the connecting ear plate 54 for connection, and by the convex edges on the rear sides of the left connecting shell 51 and the right connecting shell 52 being stuck in the card slot 39 to provide limit. When the rotating shaft 2 rotates, it drives the rotary sweeping outer sleeve 5 to rotate. While the left connecting shell 51 and the right connecting shell 52 arranged obliquely provide shielding for the fixed sealing assembly 3, the water flowing onto the rotary sweeping outer sleeve 5 is swept away to avoid the accumulation and penetration of water.
[0039] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present invention are all within the protection scope of the present invention.
Claims
1. A ring rolling machine sealing structure, comprising a fixed surface (1) and a rotating shaft (2) passing through the inner side of the fixed surface (1), characterized in that: A fixed sealing assembly (3) located outside the rotating shaft (2) is fixedly mounted on the outer side of the fixed surface (1), and the fixed sealing assembly (3) includes a fixed seat (31) fixedly mounted on the outer side of the fixed surface (1), an axial hole (32) is arranged inside the fixed seat (31), and the rotating shaft (2) is arranged inside the axial hole (32) and passes through, a spacer ring (33) and an air sealing ring (34) located on both sides of the spacer ring (33) are movably mounted inside the axial hole (32), an outer compression cover (35) is movably connected to the outer side of the fixed seat (31), an air pipe (37) connected to the axial hole (32) is fixedly connected to the outer side of the fixed seat (31), a fixing bolt (4) located inside the fixed surface (1) is threadedly connected to the inner side of the fixed sealing assembly (3), and a rotary sweep sleeve (5) is movably connected to the outer side of the fixed sealing assembly (3).
2. A ring rolling machine sealing structure according to claim 1, characterized in that: The fixing seat (31) and the outer compression cover (35) are both provided with matching fixing holes (36) inside, and the fixing bolt 1 (4) passes through the fixing hole (36) and is threadedly connected to the inside of the fixing surface (1).
3. A ring rolling machine sealing structure according to claim 2, characterized in that: A rear sealing ring (38) is movably clamped on the rear side of the fixing seat (31), and the rear sealing ring (38) is pressed between the fixing surface (1) and the fixing seat (31).
4. A ring rolling machine sealing structure according to claim 2, characterized in that: The interior of the shaft hole (32) is provided with grooves corresponding to the spacer ring (33) and the air sealing ring (34).
5. A ring rolling machine sealing structure according to claim 4, characterized in that: The air pipe (37) is connected to the middle part of the shaft hole (32), and an opening is provided on the inner side of the spacer ring (33).
6. A ring rolling machine sealing structure according to claim 1, characterized in that: The rotary sweeper sleeve (5) comprises a left connecting shell (51) and a right connecting shell (52), the inner sides of the left connecting shell (51) and the right connecting shell (52) are both provided with a sealing gasket layer (53), the inner sides of the left connecting shell (51) and the right connecting shell (52) are both provided with a connecting ear plate (54), and the inner side of the connecting ear plate (54) is threadedly connected with a fixing bolt 2 (55).
7. A ring rolling machine sealing structure according to claim 6, characterized in that: The outer side of the outer compression cover (35) is provided with a clamping groove (39), and the inner sides of the left connecting shell (51) and the right connecting shell (52) are provided with convex edges located in the clamping groove (39).
8. A ring rolling machine sealing structure according to claim 6, characterized in that: The outer sides of the left connecting shell (51) and the right connecting shell (52) are arranged in a conical shape.