Roller press chock track sealing device

Abstract

The utility model relates to the technical field of roll press, specifically is a kind of roll press bearing seat track sealing device.Sealing structure is provided with in the gap outside of the dynamic roller bearing seat and upper crossbeam and / or lower crossbeam;Sealing structure contains the first sealing part fixed on the upper crossbeam or lower crossbeam and the second sealing part fixed on the dynamic roller bearing seat, the first sealing part has the first extension from the inside of upper crossbeam or lower crossbeam outwardly extending, the second sealing part has the second extension from the inside of dynamic roller bearing seat outwardly extending, the first extension and the second extension are mutually overlapped and form non-contact labyrinth seal in the outside of gap.Outside dust and material invasion movement gap can be effectively blocked.The sealing structure is fixed on the crossbeam and bearing seat of relative motion respectively, and zigzag path is formed using mutually overlapped extension, thereby helping to reduce the damage to track lubrication state.

Description

Technical Field

[0001] This utility model relates to the field of roller press technology, specifically a roller press bearing seat track sealing device. Background Technology

[0002] As a key energy-efficient and material handling equipment in modern industry, the roller press plays an irreplaceable role in basic industries such as cement, mining, and metallurgy. It uses two counter-rotating rollers to perform high-pressure crushing of materials, significantly improving grinding efficiency and reducing system energy consumption, and has become a core piece of equipment on the production lines of many enterprises. With the continuous upgrading of industries and increasingly stringent energy-saving requirements, ensuring the long-term stable operation of roller presses and reducing maintenance costs have become common concerns for users.

[0003] During the actual operation of a roller press, the moving roller bearing housing needs to make slight reciprocating movements in a certain direction along the tracks of the upper and lower crossbeams to adapt to changes in material particle size and pressure fluctuations. This motion interface is under complex working conditions, and the fine dust and broken materials in the environment can easily penetrate into the gap between the moving roller bearing housing and the upper and lower crossbeams. In existing technology, the gap between the moving roller bearing housing and the crossbeams is usually open, lacking effective sealing measures. Even if simple dustproof sheets exist, they often fail quickly due to unreasonable structure and inability to adapt to relative motion, allowing dust to penetrate unimpeded. These foreign objects gradually accumulate on the track contact surface, disrupting the original lubrication and accelerating the wear process of the track plate and bearing housing slide groove. Over a long period of time, this wear may cause the running trajectory of the moving roller bearing housing to change, resulting in outward deviation, which in turn leads to misalignment of the axes of the two rollers of the roller press. This technical problem not only affects the quality stability of the extruded material bed but may also cause increased equipment vibration and energy consumption, ultimately requiring a large investment of manpower and materials for shutdown repairs, impacting the continuity and economy of production. Therefore, it is of practical significance to seek a sealing solution that can effectively isolate dust and protect the lubrication of the track. Utility Model Content

[0004] The present invention aims to solve the above problems and thus provide a roller press bearing seat track sealing device that effectively isolates dust.

[0005] The technical solution adopted by this utility model to solve the aforementioned problem is: A roller press bearing housing track sealing device includes a sealing structure provided on the outside of the gap between the moving roller bearing housing and the upper and / or lower crossbeam; the sealing structure includes a first sealing part fixed on the upper or lower crossbeam and a second sealing part fixed on the moving roller bearing housing, the first sealing part having a first extension extending outward from the inner side of the upper or lower crossbeam, and the second sealing part having a second extension extending outward from the inner side of the moving roller bearing housing, the first extension and the second extension overlapping each other on the outside of the gap to form a non-contact labyrinth seal.

[0006] Compared with the prior art, the present utility model adopting the above technical solution has the following outstanding features: By installing a non-contact labyrinth seal structure on the outer side of the gap between the moving roller bearing housing and the crossbeam, external dust and materials can be effectively prevented from entering the moving gap. This seal structure is fixed to the relatively moving crossbeam and bearing housing, and its overlapping extensions form a tortuous path, thus helping to reduce damage to the track lubrication and providing conditions for maintaining lubrication effectiveness. By reducing the ingress of foreign matter, this device may help slow down the wear process of the track interface, which is beneficial for maintaining the bearing housing's running trajectory and preventing excessive skew, thereby supporting the stable operation of the roller press.

[0007] As a preferred embodiment, a further technical solution of this utility model is: Furthermore, the first sealing part includes a first positioning plate welded to the inner side of the upper or lower crossbeam, and a first sealing plate connected to the first positioning plate by a first fastener. The first sealing plate constitutes a first extension, which helps to achieve stable installation and accurate positioning of the sealing component on the crossbeam.

[0008] Furthermore, the second sealing part includes a second positioning plate welded to the inner side of the moving roller bearing seat, and a second sealing plate connected to the second positioning plate by a second fastener. The second sealing plate is L-shaped and forms a second extension. The vertical edge of the second sealing plate covers the outer side of the first sealing plate, which can increase the tortuousness of the dust intrusion path, thereby improving the sealing blocking effect.

[0009] Furthermore, the first sealing plate and the second sealing plate are fitted with a clearance, and their opposing surfaces form at least one tortuous sealing path. This non-contact design allows for relative movement while creating multiple levels of protection against intruding fine dust.

[0010] Furthermore, the combined length of the first positioning plate and the first sealing plate is adapted to the length of the moving roller bearing seat, and the combined length of the second positioning plate and the second sealing plate is greater than the length of the moving roller bearing seat and extends towards the stationary roller bearing seat, which helps to maintain the continuity of the sealing coverage during the movement of the bearing seat and reduces the possibility of end leakage.

[0011] Furthermore, the labyrinth seal's channels are filled with a lubricating medium, which can further enhance its ability to impede and expel substances that have already entered in small amounts, and also provide auxiliary protection for the sealing interface. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the second sealing part structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the first sealing part in an embodiment of the present invention; The components are marked as follows: 1. Moving roller bearing seat; 2. Lower crossbeam; 3. First positioning plate; 4. First sealing plate; 5. Second positioning plate; 6. Second sealing plate; 7. Upper crossbeam. Detailed Implementation

[0013] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0014] A roller press bearing seat track sealing device is provided, wherein a sealing structure is provided on the outside of the gap between the moving roller bearing seat 1 and the upper crossbeam 7 and / or the lower crossbeam 2; in this embodiment, the sealing structure includes a first sealing part fixed on the upper crossbeam 7 or the lower crossbeam 2 and a second sealing part fixed on the moving roller bearing seat 1. The first sealing part has a first extension extending outward from the inner side of the upper crossbeam 7 or the lower crossbeam 2, and the second sealing part has a second extension extending outward from the inner side of the moving roller bearing seat 1. The first extension and the second extension overlap each other on the outside of the gap and form a non-contact labyrinth seal. The first extension and the second extension form an enclosing structure on the outside of the gap between the crossbeam and the bearing seat, enclosing the entrance of the gap. When the moving roller bearing seat 1 moves relative to the crossbeam, the first sealing part and the second sealing part maintain relative movement, but always maintain the enclosing state of the gap entrance through the labyrinth seal.

[0015] Furthermore, the first sealing part includes a first positioning plate 3 welded to the inner side of the upper crossbeam 7 or the lower crossbeam 2, and a first sealing plate 4 connected to the first positioning plate 3 by a first fastener. The first sealing plate 4 constitutes a first extension, which helps to achieve stable installation and accurate positioning of the sealing component on the crossbeam.

[0016] Furthermore, the second sealing part includes a second positioning plate 5 welded to the inner side of the moving roller bearing seat 1, and a second sealing plate 6 connected to the second positioning plate 5 by a second fastener. The second sealing plate 6 is L-shaped and forms a second extension. The vertical edge of the second sealing plate 6 covers the outer side of the first sealing plate 4, which can increase the tortuousness of the dust intrusion path, thereby improving the sealing blocking effect. Both the first fastener and the second fastener are bolts.

[0017] Furthermore, the first sealing plate 4 and the second sealing plate 6 are in a clearance fit, and their opposing surfaces form at least one tortuous sealing path. This non-contact design allows relative movement while creating multiple levels of protection against intruding fine dust.

[0018] Furthermore, the combined length of the first positioning plate 3 and the first sealing plate 4 is adapted to the length of the moving roller bearing seat 1, and the combined length of the second positioning plate 5 and the second sealing plate 6 is greater than the length of the moving roller bearing seat 1 and extends towards the stationary roller bearing seat, with an extension length of about 5 cm. This helps to maintain the continuity of the sealing coverage during the movement of the bearing seat and reduces the possibility of end leakage. During operation, the moving roller bearing seat 1 will have a certain displacement relative to the crossbeam. If the sealing structure is the same length as the moving roller bearing seat 1, when the moving roller bearing seat 1 moves to the limit position towards the stationary roller side, its end near the stationary roller side will be in contact with the crossbeam. An exposed area, not sealed, will be formed between the two. This exposed area faces the direction of material impact and is very likely to become a direct channel for dust to enter the track interface. By extending the second sealing part about 5cm towards the stationary roller side, it can be ensured that the extended section always effectively covers and seals the end entrance of the track gap throughout the entire working stroke of the moving roller bearing seat 1. This continuous sealing protection helps to make up for the end protection gap caused by the movement of the moving roller bearing seat 1, structurally reducing the risk of dust entering from the end and providing a more comprehensive guarantee for maintaining the cleanliness and lubrication of the track interior.

[0019] Furthermore, the labyrinth seal's channels are filled with a lubricating medium, which can further enhance its ability to impede and expel substances that have already entered in small amounts, and also provide auxiliary protection for the sealing interface.

[0020] By installing a non-contact labyrinth seal structure on the outside of the gap between the moving roller bearing housing 1 and the crossbeam, external dust and materials can be effectively prevented from entering the moving gap. This seal structure is fixed to the relatively moving crossbeam and bearing housing respectively, and its overlapping extensions form a tortuous path, thereby helping to reduce damage to the track lubrication state and providing conditions for maintaining lubrication effectiveness. By reducing the ingress of foreign objects, this device may help slow down the wear process of the track interface, which is beneficial for maintaining the bearing housing's running trajectory and preventing excessive skew, thus supporting the stable operation of the roller press.

[0021] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A roller press bearing seat track sealing device, characterized in that: A sealing structure is provided on the outside of the gap between the moving roller bearing housing and the upper and / or lower crossbeam; the sealing structure includes a first sealing part fixed on the upper or lower crossbeam and a second sealing part fixed on the moving roller bearing housing. The first sealing part has a first extension extending outward from the inner side of the upper or lower crossbeam, and the second sealing part has a second extension extending outward from the inner side of the moving roller bearing housing. The first extension and the second extension overlap each other on the outside of the gap and form a non-contact labyrinth seal.

2. The roller press bearing seat track sealing device according to claim 1, characterized in that: The first sealing part includes a first positioning plate welded to the inner side of the upper or lower crossbeam, and a first sealing plate connected to the first positioning plate by a first fastener, the first sealing plate constituting a first extension.

3. The roller press bearing seat track sealing device according to claim 2, characterized in that: The second sealing part includes a second positioning plate welded to the inner side of the moving roller bearing seat, and a second sealing plate connected to the second positioning plate by a second fastener. The second sealing plate is L-shaped and forms a second extension. The vertical edge of the second sealing plate covers the outer side of the first sealing plate.

4. The roller press bearing seat track sealing device according to claim 3, characterized in that: The first sealing plate and the second sealing plate are fitted with a clearance, and their opposing surfaces form at least one tortuous sealing path.

5. The roller press bearing seat track sealing device according to claim 3, characterized in that: The combined length of the first positioning plate and the first sealing plate is adapted to the length of the moving roller bearing seat, and the combined length of the second positioning plate and the second sealing plate is greater than the length of the moving roller bearing seat and extends towards the stationary roller bearing seat.

6. The roller press bearing seat track sealing device according to claim 1, characterized in that: The labyrinthine sealed passages are filled with a lubricating medium.

Images