A leakage-proof sealing structure of a cement mill lubrication system

Abstract

This utility model belongs to the technical field of leak-proof sealing structures, specifically relating to a leak-proof sealing structure for a cement mill lubrication system. It includes a sliding cover, a fixed flange welded to the right side of the sliding cover, a Y-shaped sealing ring slidably fitted onto the outer side of the fixed flange, a channel steel pressure ring contacting the right side of the Y-shaped sealing ring, and a pressure plate (L-shaped) contacting the inner side of the channel steel pressure ring. A non-standard bolt is slidably connected to the bent portion of the pressure plate, penetrating the pressure plate and passing through the fixed flange via a thread. By replacing the original O-ring with a Y-shaped sealing ring and filling the bifurcation of the Y-shaped sealing ring with molybdenum disulfide grease, the sealing range and performance are increased. Furthermore, the sealing structure is replaced by a channel steel pressure ring and non-standard bolts instead of direct screw fixation, resulting in more even stress on the Y-shaped sealing ring and reducing the likelihood of oil leakage.

Description

Technical Field

[0001] This solution belongs to the field of leak-proof sealing structures, specifically involving a leak-proof sealing structure for a cement mill lubrication system. Background Technology

[0002] In the cement production process, the cement mill is one of the core pieces of equipment, and the stability of its lubrication system directly affects the equipment's operating efficiency and service life.

[0003] A search revealed a utility model patent with authorization announcement number CN211026666U, which discloses a cement mill slipper cover, including a cover body. The bottom of the cover body has a bottom oil tank, and a supporting base plate is provided in the middle of the bottom end of the bottom oil tank. Supporting chambers are provided on the left and right sides of the bottom end of the bottom oil tank. A foundation base plate is fixedly installed at the bottom end of the supporting chamber. A first detection port is provided in the middle of the front and rear sides of the bottom oil tank, and two sets of second detection ports are provided on the front and rear sides of the bottom oil tank.

[0004] Traditional cement mill slip ring seals typically use O-ring rubber seals, which are fixed by positioning bolts and pressure strips to make the seal tightly fit the slip ring to achieve a seal. However, the O-ring seal and the slip ring have dry friction and lack a lubricating medium, which leads to rapid wear and aging of the seal. At the same time, the O-ring seal has a limited sealing surface, which makes it easy to fail to seal properly. Utility Model Content

[0005] The purpose of this solution is to provide a leak-proof sealing structure for a cement mill lubrication system to solve the problem of poor sealing performance of traditional cement mill sliding covers.

[0006] To achieve the above objectives, this solution provides a leak-proof sealing structure for a cement mill lubrication system, including a sliding cover. A fixed flange is welded to the right side of the sliding cover. A Y-shaped sealing ring is slidably fitted onto the outer side of the fixed flange. A channel steel pressure ring contacts the right side of the Y-shaped sealing ring. A pressure plate, which is L-shaped, contacts the inner side of the channel steel pressure ring. A non-standard bolt is slidably connected to the bent portion of the pressure plate. The non-standard bolt penetrates the pressure plate and is threaded to the fixed flange. An anti-loosening mechanism is provided on the pressure plate.

[0007] The principle of this solution is as follows: First, before installing the Y-type sealing ring, fill its bifurcation with molybdenum disulfide grease. Then, place it outside the fixed flange, abutting against the baffle. Next, place the channel steel pressure ring on the right side of the Y-type sealing ring. Then, fix the pressure plate to the fixed flange with non-standard bolts, with the pressure plate abutting against the channel steel pressure ring. After the non-standard bolts are tightened into place, the locking pin on the inclined block is inserted into the non-standard bolts through the cooperation of the arc pin and the inclined block. This effectively prevents the non-standard bolts from loosening under vibration, ensuring the long-term stable fixing of the pressure plate and the channel steel pressure ring, further guaranteeing the sealing performance of the Y-type sealing ring.

[0008] The technical advantages of this solution are as follows: by replacing the original O-ring seal with a Y-ring seal, and filling the bifurcation of the Y-ring seal with molybdenum disulfide grease, the sealing range and sealing performance can be increased by utilizing the bifurcation of the Y-ring seal. At the same time, the sealing structure is changed from direct screw fixing to channel steel pressure ring and non-standard bolt fixing, so that the Y-ring seal is subjected to uniform force and is not prone to oil leakage.

[0009] By setting an anti-loosening mechanism on the pressure plate, the anti-loosening mechanism effectively prevents non-standard bolts from loosening under vibration by using the linkage of inclined blocks, locking pins and springs, ensuring the long-term stable fixation of the pressure plate and channel steel pressure ring, and further guaranteeing the sealing of the Y-type sealing ring.

[0010] Furthermore, a baffle is fixedly connected to the outside of the fixed flange and to the left of the Y-shaped sealing ring, and the baffle contacts the Y-shaped sealing ring. The baffle serves to limit the movement of the Y-shaped sealing ring.

[0011] Furthermore, a pad is fixedly connected to the fixed flange, and the pad abuts against the bent portion of the pressure plate. The pad provides auxiliary support for the pressure plate, ensuring that it remains horizontal with the bent portion and the fixed flange.

[0012] Furthermore, a positioning block is fixedly connected to the bent portion of the pressure plate, and the positioning block engages with the pad block. The positioning block serves to position the pressure plate in its installation location.

[0013] Furthermore, the anti-loosening mechanism includes a hollow shell fixedly connected to the bent part of the pressure plate. An inclined block is slidably connected inside the hollow shell, and a locking pin is fixedly connected to the inclined block. The locking pin penetrates the hollow shell and is slidably connected to it. The locking pin is inserted into a non-standard bolt. An arc-shaped pin is slidably connected to the right side of the hollow shell, and the arc-shaped pin penetrates the hollow shell. The arc end of the arc-shaped pin abuts against the inclined surface of the inclined block, and a push block is fixedly connected to the other end of the arc-shaped pin. Through the anti-loosening mechanism, the non-standard bolt is locked in place, preventing loosening after being tightened, thereby ensuring the stable pressure of the pressure plate and the channel steel pressure ring on the Y-type sealing ring.

[0014] Furthermore, a guide pin is fixedly connected to the inner wall of the hollow shell, and the guide pin is slidably connected to the inclined block. A spring is installed inside the inclined block, one end of which is fixedly connected to the guide pin, and the other end of which is fixedly connected to the inner surface of the inclined block. The guide pin and spring provide auxiliary resetting for the extension and retraction of the inclined block.

[0015] Furthermore, an anti-detachment corrugated sleeve is fixedly connected to the push block, and the anti-detachment corrugated sleeve is fixedly connected to the outer wall of the hollow shell. The anti-detachment corrugated sleeve prevents the push block and the arc pin from falling off, while not affecting their extension and retraction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is an embodiment of the present utility model. Figure 1 A front sectional view; Figure 3 This is an embodiment of the present utility model. Figure 2 A magnified view of the local structure; Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A; Figure 5 This is an embodiment of the present utility model. Figure 3 Enlarged view of point B; Figure 6 This is an embodiment of the present utility model. Figure 1 A three-dimensional schematic diagram of a partial structure.

[0017] The following detailed explanation illustrates the specific implementation methods: The reference numerals in the accompanying drawings of the instruction manual include: 1. Slipper cover; 2. Fixed flange; 3. Y-type sealing ring; 4. Baffle; 5. Channel steel pressure ring; 6. Pressure plate; 7. Non-standard bolt; 8. Anti-loosening mechanism; 9. Pad; 10. Positioning block; 81. Hollow shell; 82. Inclined block; 83. Locking pin; 84. Guide pin; 85. Spring; 86. Arc pin; 87. Push block; 88. Anti-detachment corrugated sleeve. Detailed Implementation

[0018] The basic implementation examples are as follows: Figures 1-6 The diagram shows a leak-proof sealing structure for a cement mill lubrication system, comprising a sliding cover 1, a fixed flange 2 welded to the right side of the sliding cover 1, a Y-type sealing ring 3 slidably fitted onto the outside of the fixed flange 2, a channel steel pressure ring 5 contacting the right side of the Y-type sealing ring 3, and a baffle 4 fixedly connected to the outside of the fixed flange 2 and to the left of the Y-type sealing ring 3, the baffle 4 contacting the Y-type sealing ring 3. The baffle 4 serves to limit the movement of the Y-type sealing ring 3.

[0019] like Figure 3 , Figure 4 As shown, the inner side of the channel steel pressure ring 5 contacts a pressure plate 6, and the pressure plate 6 is L-shaped. A non-standard bolt 7 is slidably connected to the bent portion of the pressure plate 6, and the non-standard bolt 7 penetrates the pressure plate 6. The non-standard bolt 7 penetrates the fixed flange 2 and is threadedly connected to the fixed flange 2. A pad 9 is fixedly connected to the fixed flange 2, and the pad 9 abuts against the bent portion of the pressure plate 6. The pad 9 provides auxiliary support for the pressure plate 6, keeping it level with the bent portion and the fixed flange 2. A positioning block 10 is fixedly connected to the bent portion of the pressure plate 6, and the positioning block 10 engages with the pad 9. The positioning block 10 positions the pressure plate 6.

[0020] like Figure 3 , Figure 5 As shown, the pressure plate 6 is equipped with an anti-loosening mechanism 8. This mechanism locks the non-standard bolts 7 in place, preventing them from loosening after being tightened. This ensures stable pressure of the pressure plate 6 and the channel steel pressure ring 5 on the Y-type sealing ring 3. The anti-loosening mechanism 8 includes a hollow shell 81 fixedly connected to the bent part of the pressure plate 6. An inclined block 82 is slidably connected inside the hollow shell 81. A locking pin 83 is fixedly connected to the inclined block 82. The locking pin 83 penetrates the hollow shell 81 and is slidably connected to it. A non-standard bolt 7 is inserted into the hollow shell 81. A circular arc pin 86 is slidably connected to the right side of the hollow shell 81, and the circular arc pin 86 penetrates the hollow shell 81. The arc end of the circular arc pin 86 abuts against the inclined surface of the inclined block 82. A push block 87 is fixedly connected to the other end of the circular arc pin 86. A guide pin 84 is fixedly connected to the inner wall of the hollow shell 81, and the guide pin 84 is slidably connected to the inclined block 82. A spring 85 is installed inside the inclined block 82. One end of the spring 85 is fixedly connected to the guide pin 84, and the other end of the spring 85 is fixedly connected to the inner surface of the inclined block 82. The guide pin 84 and the spring 85 assist in the repositioning of the inclined block 82. An anti-detachment corrugated sleeve 88 is fixedly connected to the push block 87, and the anti-detachment corrugated sleeve 88 is fixedly connected to the outer wall of the hollow shell 81. The anti-detachment corrugated sleeve 88 prevents the push block 87 and the circular arc pin 86 from falling off without affecting their extension and retraction.

[0021] The specific implementation process of this utility model is as follows: In use, firstly, before installing the Y-type sealing ring 3, fill its bifurcation part with molybdenum disulfide grease, then place it on the outside of the fixed flange 2 and abut against the baffle 4. Then, place the channel steel pressure ring 5 on the right side of the Y-type sealing ring 3. Subsequently, fix the pressure plate 6 to the fixed flange 2 with non-standard bolts 7, and the pressure plate 6 abuts against the channel steel pressure ring 5. After the non-standard bolts 7 are screwed in place, the locking pin 83 on the inclined block 82 is controlled to be inserted into the non-standard bolts 7 through the cooperation of the arc pin 86 and the inclined block 82. This can effectively prevent the non-standard bolts 7 from loosening in the vibration environment, ensure the long-term stable fixation of the pressure plate 6 and the channel steel pressure ring 5, and further ensure the sealing performance of the Y-type sealing ring 3.

[0022] This solution replaces the original O-ring seal with a Y-ring seal 3, and fills the bifurcation of the Y-ring seal 3 with molybdenum disulfide grease. Utilizing the bifurcation of the Y-ring seal 3 increases the sealing range and performance. Simultaneously, the sealing structure is replaced by a channel steel pressure ring 5 and non-standard bolts 7 for fixation, ensuring even stress distribution on the Y-ring seal 3 and reducing oil leakage. An anti-loosening mechanism 8 is installed on the pressure plate 6. This mechanism, utilizing the linkage of the inclined block 82, locking pin 83, and spring 85, effectively prevents the non-standard bolts 7 from loosening under vibration, ensuring the long-term stable fixation of the pressure plate 6 and the channel steel pressure ring 5, further guaranteeing the sealing performance of the Y-ring seal 3.

[0023] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A leak-proof sealing structure for a cement mill lubrication system, comprising a sliding cover, characterized in that: A fixed flange is welded to the right side of the sliding cover. A Y-type sealing ring is slidably fitted on the outside of the fixed flange. A channel steel pressure ring contacts the right side of the Y-type sealing ring. A pressure plate contacts the inside of the channel steel pressure ring. The pressure plate is L-shaped. A non-standard bolt is slidably connected to the bent part of the pressure plate. The non-standard bolt penetrates the pressure plate and is threaded to the fixed flange. An anti-loosening mechanism is provided on the pressure plate.

2. The anti-leakage sealing structure for a cement mill lubrication system according to claim 1, characterized in that: A baffle is fixedly connected to the outside of the fixed flange and to the left of the Y-shaped sealing ring, and the baffle is in contact with the Y-shaped sealing ring.

3. The anti-leakage sealing structure for a cement mill lubrication system according to claim 1, characterized in that: A pad is fixedly connected to the fixed flange, and the pad abuts against the bent part of the pressure plate.

4. The anti-leakage sealing structure for a cement mill lubrication system according to claim 3, characterized in that: The bent portion of the pressure plate is fixedly connected to a positioning block, which engages with the pad block.

5. The anti-leakage sealing structure for a cement mill lubrication system according to claim 1, characterized in that: The anti-loosening mechanism includes a hollow shell fixedly connected to the bent part of the pressure plate. An inclined block is slidably connected inside the hollow shell. A locking pin is fixedly connected to the inclined block. The locking pin passes through the hollow shell and is slidably connected to the hollow shell. The locking pin is inserted into a non-standard bolt. An arc pin is slidably connected to the right side of the hollow shell. The arc pin is set to pass through the hollow shell. The arc end of the arc pin abuts against the inclined surface of the inclined block. A push block is fixedly connected to the other end of the arc pin.

6. The anti-leakage sealing structure for a cement mill lubrication system according to claim 5, characterized in that: A guide pin is fixedly connected to the inner wall of the hollow shell. The guide pin is slidably connected to the inclined block. A spring is provided inside the inclined block. One end of the spring is fixedly connected to the guide pin, and the other end of the spring is fixedly connected to the inner surface of the inclined block.

7. The anti-leakage sealing structure for a cement mill lubrication system according to claim 6, characterized in that: An anti-detachment corrugated sleeve is fixedly connected to the push block, and the anti-detachment corrugated sleeve is fixedly connected to the outer wall of the hollow shell.

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