Novel plane concave-convex type sealing structure

Abstract

The utility model discloses a novel plane concave-convex type sealing structure which comprises a sliding ring, a backflow hole and an oil supply assembly, lubricating oil is sprayed on the outer wall of the sliding ring through a spray head on an oil spray pipe to lubricate the sliding ring, the lubricating oil further acts on lubricating of a sealing ring, and the backflow hole is formed in the bottom of a sliding shoe cover shell. When the lubricating oil sprayed on the outer wall of the sliding ring is excessive, the lubricating oil enters an oil storage tank of the oil supply assembly through a backflow hole, the backflow lubricating oil is filtered through a filter plate in the oil storage tank, the liquid level in the oil storage tank is detected through a liquid level sensor, and when the filter plate is blocked, the backflow lubricating oil is accumulated on the filter plate; and when the liquid level is higher than a preset value, an instruction is sent to the control system for prompting, so that the filter plate can be replaced and cleaned in time, the lubricating effect of the slip ring is ensured, and the problem of oil leakage caused by excessive spraying of lubricating oil is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding shoe seals, in particular to a novel plane concave-convex seal structure. Background Art

[0002] Tube mill is a very important fine grinding equipment in modern industry. Large tube mill has high production capacity. Existing cement mills are usually supported by sliding shoe bearings. The sliding shoe seal of the discharging device and feeding device of cement tube mill is a key part. The phenomenon of long-term oil leakage caused by sealing structure defects has always existed.

[0003] At present, the publication number CN212775553U has disclosed "A Sliding Shoe Sealing Device". By setting the oil retaining ring, the oil injection position on the top of the sliding shoe cover is optimized and adjusted, and the lubricating oil can all slide from the oil tank back to the oil tank, keeping the lubricating oil from spraying out and reflux without overflowing, which completely solves a major problem that plagues the operation of domestic cement mills, reduces the mill failure caused by oil level lower limit due to sliding shoe oil leakage, and improves the reliability of equipment operation;

[0004] Although the above-mentioned sliding shoe sealing device can effectively guide the lubricating oil into the oil tank through the oil retaining ring, it blocks the lubricating effect of the lubricating oil on the sealing ring, resulting in insufficient lubrication of the sealing ring, making the friction between the sliding ring and the sealing ring too large when the sliding ring rotates, causing damage to the sealing ring. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a novel planar concave-convex sealing structure to solve the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a new type of plane concave-convex sealing structure, including a sliding ring, a reflux hole and an oil supply assembly, and a sliding shoe cover is sleeved on the outer side of the sliding ring;

[0009] A reflux hole is provided in the middle of the bottom end of the sliding shoe cover, and the bottom end of the reflux hole is connected to the oil supply assembly, the oil supply assembly includes an oil storage tank, filter plate 1, filter plate 2, a reflux pipe, a liquid level sensor, an oil pump, an extraction pipe and an output pipe. Filter plate 1 and filter plate 2 are provided in the middle of the inner side of the oil storage tank, and filter plate 1 is provided on the top of filter plate 2. The middle of the top end of the oil storage tank is connected to the reflux pipe, and the top end of the reflux pipe is connected to the reflux hole. A liquid level sensor is installed at the top edge of the oil storage tank, the extraction port of the oil pump is connected to the extraction pipe, and the extraction pipe extends into the interior of the oil storage tank, and the output port of the oil pump is connected to the output pipe.

[0010] Preferably, an oil injection pipe is installed inside the sliding shoe cover, and a nozzle is installed on the oil injection pipe, sealing structures are provided on the front and rear sides of the sliding shoe cover, and the front and rear sides of the outer wall of the sliding ring are slidably connected to the sealing structure, and the oil injection pipe is connected to the output pipe.

[0011] Preferably, the sealing structure includes a sealing ring, a lining, a pressure ring, a pressure plate and a support plate, the inner side of the sealing ring is provided with a lining, the outer side of the sealing ring is fitted with the pressure ring, the outer side of the pressure ring is supported by the pressure plate, the pressure plate is fixedly connected to the support plate by bolts, the lining and the support plate are both connected to the sliding shoe cover, the sealing ring is sleeved on the outer side of the slip ring, and the outer wall of the slip ring is slidably connected to the sealing ring.

[0012] Preferably, the oil spraying direction of the nozzle is towards the slip ring.

[0013] Preferably, the mesh sizes of the filter plate 1 and the filter plate 2 are consistent.

[0014] Preferably, the inner wall and outer wall of the sealing ring are respectively fitted with the lining plate and the pressure ring.

[0015] (III) Beneficial effects

[0016] The utility model provides a novel flat concave-convex sealing structure. It has the following beneficial effects: the lubricating oil is sprayed on the outer wall of the sliding ring through the nozzle on the oil spray pipe to lubricate the sliding ring, and the lubricating oil also acts on the lubrication of the sealing ring. A reflux hole is opened at the bottom of the sliding shoe cover, so that when the lubricating oil sprayed on the outer wall of the sliding ring is excessive, the lubricating oil enters the oil storage tank of the oil supply component through the reflux hole, and the refluxed lubricating oil is filtered through the filter plate inside the oil storage tank. The liquid level inside the oil storage tank is detected by the liquid level sensor. When the filter plate is blocked, the refluxed lubricating oil accumulates on the filter plate, causing the liquid level to rise. When the liquid level is higher than the preset value, a command is sent to the control system for prompting, so as to facilitate the timely replacement and cleaning of the filter plate, thereby ensuring the lubrication effect of the sliding ring and avoiding the problem of oil leakage caused by excessive lubricating oil spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the sliding shoe cover of the utility model;

[0019] Figure 3 This is a schematic diagram of the sealing structure in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the oil supply component in the utility model.

[0021] In the figure: slip ring 1, sliding shoe cover 2, reflux hole 3, oil supply assembly 4, oil injection pipe 21, nozzle 22, sealing structure 23, sealing ring 231, lining plate 232, pressure ring 233, pressure plate 234, support plate 235, oil storage tank 41, filter plate 1 -42, filter plate 2 -43, reflux pipe 44, liquid level sensor 45, oil pump 46, extraction pipe 47, output pipe 48. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a novel planar concave-convex sealing structure technical solution: a novel planar concave-convex sealing structure, comprising a slip ring 1, a reflux hole 3 and an oil supply assembly 4, wherein a slipper cover 2 is sleeved on the outer side of the slip ring 1;

[0024] A reflux hole 3 is provided in the middle of the bottom end of the sliding shoe cover 2, and the bottom end of the reflux hole 3 is connected to the oil supply assembly 4, which includes an oil storage tank 41, a filter plate 1 42, a filter plate 2 43, a reflux pipe 44, a liquid level sensor 45, an oil pump 46, an extraction pipe 47 and an output pipe 48. A filter plate 1 42 and a filter plate 2 43 are provided in the middle of the inner side of the oil storage tank 41, and the filter plate 1 42 is provided on the top of the filter plate 2 43. The middle of the top end of the oil storage tank 41 is connected to the reflux pipe 44, and the top end of the reflux pipe 44 is connected to the reflux hole 3. A liquid level sensor 45 is installed at the top edge of the oil storage tank 41. The extraction port of the oil pump 46 is connected to the extraction pipe 47, and the extraction pipe 47 extends into the interior of the oil storage tank 41, and the output port of the oil pump 46 is connected to the output pipe 48.

[0025] The mesh size of the filter plate 1 42 and the filter plate 2 43 is the same. The return oil filtered by the filter plate 1 42 flows into the oil storage tank 41 through the filter plate 2 43. When the filter plate 1 42 is blocked, the return oil accumulates on the filter plate 1 42. The liquid level sensor 45 detects the liquid level. When the liquid level is higher than the preset value, a command is sent to the control system for prompting. When the filter plate 1 42 is taken out, the oil accumulated on the filter plate 1 42 is filtered through the filter plate 2 43.

[0026] An oil injection pipe 21 is installed inside the sliding shoe cover 2, and a nozzle 22 is installed on the oil injection pipe 21. A sealing structure 23 is provided on both the front and rear sides of the sliding shoe cover 2, and the front and rear sides of the outer wall of the slip ring 1 are slidably connected with the sealing structure 23. The oil injection pipe 21 is connected to the output pipe 48, and the oil injection direction of the nozzle 22 is toward the slip ring 1.

[0027] The sealing structure 23 includes a sealing ring 231, a lining plate 232, a pressure ring 233, a pressure plate 234 and a support plate 235. The inner side of the sealing ring 231 is provided with a lining plate 232, the outer side of the sealing ring 231 is fitted with the pressure ring 233, the outer side of the pressure ring 233 is supported by the pressure plate 234, the pressure plate 234 is fixedly connected with the support plate 235 by bolts, the lining plate 232 and the support plate 235 are both connected with the sliding shoe cover 2, the sealing ring 231 is sleeved on the outer side of the slip ring 1, and the outer wall of the slip ring 1 is slidably connected with the sealing ring 231;

[0028] The inner wall and the outer wall of the sealing ring 231 are respectively fitted with the lining plate 232 and the pressing ring 233 , and the sealing ring 231 is pressed and fixed by the lining plate 232 and the pressing ring 233 .

[0029] When in use, the oil pump 46 extracts the lubricating oil in the oil storage tank 41 through the extraction pipe 47, and delivers it to the oil injection pipe 21 through the output pipe 48, and sprays it out through the nozzle 22, spraying the lubricating oil on the outer wall of the sliding ring to lubricate the sliding ring, and the lubricating oil also acts on the lubrication of the sealing ring. When the lubricating oil sprayed on the outer wall of the sliding ring 1 is excessive, the lubricating oil enters the oil storage tank 41 of the oil supply component 4 through the reflux hole 3, and the refluxed lubricating oil is filtered by the filter plate 1 42 and the filter plate 2 43 inside the oil storage tank 41. When blocked, the reflux oil accumulates on the filter plate 42, and the liquid level sensor 45 detects the liquid level. When the liquid level is higher than the preset value, a command is sent to the control system for prompting, so as to facilitate timely replacement and cleaning of the filter plate to ensure the lubrication effect of the slip ring, and when the filter plate 42 is taken out, the oil accumulated on the filter plate 42 is filtered through the filter plate 2 43 to prevent the unfiltered lubricating oil on the filter plate 42 from directly mixing with the original lubricating oil in the oil storage tank 41, resulting in the mixing of dust and debris in the lubricating oil, affecting the lubricating effect of the lubricating oil.

[0030] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0031] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel planar concave-convex sealing structure, comprising a slip ring (1), wherein a slip shoe cover (2) is sleeved on the outer side of the slip ring (1); Features: The invention also comprises a reflux hole (3) and an oil supply assembly (4). The reflux hole (3) is provided in the middle of the bottom end of the sliding shoe cover (2), and the bottom end of the reflux hole (3) is connected to the oil supply assembly (4). The oil supply assembly (4) comprises an oil storage tank (41), a filter plate 1 (42), a filter plate 2 (43), a reflux pipe (44), a liquid level sensor (45), an oil pump (46), an extraction pipe (47) and an output pipe (48). The filter plate 1 (42) and the filter plate 2 (43) are provided in the middle of the inner side of the oil storage tank (41). 43), and the filter plate 1 (42) is arranged on the top of the filter plate 2 (43), the middle of the top of the oil storage tank (41) is connected to the return pipe (44), and the top of the return pipe (44) is connected to the return hole (3), a liquid level sensor (45) is installed at the top edge of the oil storage tank (41), the extraction port of the oil pump (46) is connected to the extraction pipe (47), and the extraction pipe (47) extends into the interior of the oil storage tank (41), and the output port of the oil pump (46) is connected to the output pipe (48).

2. A novel planar concave-convex sealing structure according to claim 1, characterized in that: An oil injection pipe (21) is installed inside the sliding shoe cover (2), and a nozzle (22) is installed on the oil injection pipe (21). Sealing structures (23) are provided on both the front and rear sides of the sliding shoe cover (2), and the front and rear sides of the outer wall of the sliding ring (1) are slidably connected to the sealing structure (23). The oil injection pipe (21) is connected to the output pipe (48).

3. A novel planar concave-convex sealing structure according to claim 2, characterized in that: The sealing structure (23) comprises a sealing ring (231), a lining plate (232), a pressure ring (233), a pressure plate (234) and a support plate (235); the inner side surface of the sealing ring (231) is provided with a lining plate (232); the outer side surface of the sealing ring (231) is in contact with the pressure ring (233); the outer side of the pressure ring (233) is supported by the pressure plate (234); the pressure plate (234) is fixedly connected to the support plate (235) by bolts; the lining plate (232) and the support plate (235) are both connected to the sliding shoe cover (2); the sealing ring (231) is sleeved on the outer side of the sliding ring (1); and the outer wall of the sliding ring (1) is slidably connected to the sealing ring (231).

4. A novel planar concave-convex sealing structure according to claim 2, characterized in that: The oil spraying direction of the spray head (22) is toward the slip ring (1).

5. A novel planar concave-convex sealing structure according to claim 1, characterized in that: The mesh sizes of the filter plate 1 (42) and the filter plate 2 (43) are consistent.

6. A novel planar concave-convex sealing structure according to claim 3, characterized in that: The inner wall and outer wall of the sealing ring (231) are respectively fitted with the lining plate (232) and the pressing ring (233).

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