Shaft end sealing dustproof labyrinth ring for crusher

Abstract

The utility model discloses a shaft end sealing dustproof labyrinth ring for a crusher, which comprises a bearing seat, a bearing is arranged in the bearing seat, a shaft body penetrates through the bearing, two groups of sealing rings are sleeved on the side wall of the shaft body, dustproof rings are arranged on two sides of the bearing seat, and a sealing ring is arranged on the sealing ring. Annular cavity plates and multiple sets of air cylinders are fixedly installed on the two sides of the bearing seat correspondingly, multiple sets of annular protrusions are arranged on the opposite faces of the two sets of sealing rings correspondingly, multiple sets of annular grooves are formed in the far faces of the two sets of dustproof rings correspondingly, and filter screen hole plates fixedly penetrate through the opposite ends of the multiple sets of air cylinders on the same side correspondingly. And moving rods slidably penetrate through the interiors of the multiple sets of filter screen hole plates on the same side, and piston blocks are installed at the far ends of the multiple sets of moving rods on the same side. The shaft end sealing dustproof labyrinth ring has the advantages that the annular cavity plate and the air storage cylinder are adopted, the dustproof structure can be rapidly disassembled and assembled through the annular cavity plate and the air storage cylinder, and convenience is brought to disassembly and assembly of the shaft end sealing dustproof labyrinth ring for the crusher.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and more specifically, to a dustproof labyrinth ring for a crusher shaft end seal. Background Technology

[0002] A crusher is a pulverizing machine used in the processing of metal and non-metal ores to crush mined raw ore into small particles through compression and bending. The crushing shaft of the crusher needs to be connected by bearings. To prevent crushed impurities from contacting the bearings, a dustproof labyrinth ring is used to seal and intercept the crushed impurities. In actual use, it has the advantages of simple operation, stable structure and good protection effect.

[0003] The prior art discloses a dustproof labyrinth ring for an impact crusher, with announcement number CN215353765U. In this utility model, the connection between the dust cover and the bearing housing requires multiple mounting screws. Disassembling and assembling the dust cover requires rotating these screws clockwise and counterclockwise, resulting in numerous steps and inconvenience for the dustproof structure. Furthermore, the installation of the dustproof nut requires the use of a bearing locking nut. The dustproof nut and bearing locking nut together form a dust-blocking structure. The design of these components necessitates a threaded structure on the shaft surface. This threaded structure, exposed to the air, is easily attracted by impurities, affecting the disassembly and use of the dustproof nut and bearing locking nut, thus reducing the practicality of this utility model.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a dustproof labyrinth ring for shaft end sealing of crushers, which has the advantages of quick disassembly and assembly of the dustproof structure and the ability to prevent impurities from hindering the installation of the dustproof structure, thereby solving the problems mentioned in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the advantages of quick assembly and disassembly of the dustproof structure and to avoid impurities hindering the installation of the dustproof structure, the specific technical solution adopted by this utility model is as follows:

[0009] A dustproof labyrinth ring for a crusher shaft end seal includes a bearing housing. A bearing is housed inside the bearing housing, and a shaft penetrates through the bearing. Two sets of sealing rings are fitted onto the side walls of the shaft. Dustproof rings are provided on both sides of the bearing housing. Annular cavity plates and multiple sets of air storage cylinders are fixedly installed on both sides of the bearing housing. Multiple sets of annular protrusions are provided on the facing surfaces of the two sets of sealing rings, and multiple sets of annular grooves are provided on the distant surfaces of the two sets of dustproof rings. A perforated filter plate is fixedly inserted through the facing ends of the multiple sets of air storage cylinders on the same side. A moving rod slides through the interior of each of the multiple sets of perforated filter plates on the same side. A piston block is installed at the distant end of each of the multiple sets of moving rods on the same side. A clamping plate is installed at the facing ends of each of the multiple sets of moving rods on the same side. A telescopic spring is fitted onto the side walls of each of the multiple sets of moving rods on the same side. A connecting pipe passes through between each of the multiple sets of air storage cylinders on the same side and one set of annular cavity plates on the same side. An air inlet pipe passes through the outer walls of both sets of annular cavity plates.

[0010] Furthermore, control valves are provided on the side walls of both sets of intake pipes.

[0011] Furthermore, the diameter of the multiple sets of annular protrusions on the same side decreases sequentially from the outside to the inside.

[0012] Furthermore, the diameter of the multiple sets of annular grooves on the same side decreases sequentially from the outside to the inside.

[0013] Furthermore, the side wall of the shaft is provided with two sets of mounting holes, and the outer wall of the two sets of sealing rings is provided with threaded through holes and insertion holes. Fastening bolts pass through the interior of the two sets of threaded through holes, and insertion rods are installed at one end of the two sets of fastening bolts.

[0014] Furthermore, the two sets of threaded through holes and the two sets of fastening bolt threads are mutually engaged.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a dustproof labyrinth ring for shaft end sealing of crushers, which has the following beneficial effects:

[0017] (1) This utility model adopts annular cavity plates and air storage cylinders. When actually using the dustproof labyrinth rings for the shaft end seal of the crusher, the two sets of dustproof rings and the two sets of sealing rings can be moved to both sides of the bearing seat, and then the shaft body passes through the bearing, the two sets of dustproof rings and the two sets of sealing rings. After that, the two sets of dustproof rings are attached to both sides of the bearing seat, and then one end of the two sets of air inlet pipes is connected to the output end of the external air pump. After the external air pump is powered on, air can enter the interior of the two sets of annular cavity plates through the two sets of air inlet pipes. The air inside the annular cavity plate on the same side can enter the interior of the multiple sets of air storage cylinders on the same side through the multiple sets of connecting pipes on the same side. This part of the air can push the multiple sets of piston blocks on the same side. The piston block moves multiple sets of clamping plates on the same side towards each other via multiple sets of moving rods on the same side. At the same time, multiple sets of piston blocks and multiple sets of filter screen plates on the same side can clamp multiple sets of telescopic springs on the same side. When multiple sets of clamping plates on the same side contact a set of dustproof rings, a set of control valves on the same side is closed. At this time, the set of dustproof rings is clamped and fixed. When the set of control valves on the same side is opened, the multiple sets of telescopic springs on the same side can push the multiple sets of piston blocks on the same side to reset due to their own elastic force. Then, the set of dustproof rings can be removed. The use of the other set of dustproof rings is the same as the operation. As can be seen from the operation, the dustproof structure can be quickly disassembled and assembled through the set annular cavity plate and air storage cylinder, which brings convenience to the disassembly and assembly of the dustproof labyrinth ring dustproof structure for the shaft end seal of the crusher.

[0018] (2) This utility model uses a sealing ring. According to the above operation, after the two sets of dustproof rings are installed, the two sets of sealing rings can be moved in opposite directions by hand. When multiple sets of annular protrusions are inserted into multiple annular grooves, the two sets of threaded through holes and two sets of fastening bolt threads cooperate with each other. The operator rotates the two sets of fastening bolts clockwise by hand, and the two sets of insert rods will gradually move into the interior of the two sets of mounting holes and two sets of insertion holes. During this process, the two sets of insert rods can push out the impurities inside the two sets of mounting holes and two sets of insertion holes. After the two sets of sealing rings are disassembled, the two sets of fastening bolts can be reinserted into the interior of the two sets of threaded through holes to prevent impurities from adsorbing on the surface of the two sets of threaded through holes and two sets of fastening bolts. The gaps between multiple sets of annular protrusions and multiple sets of annular grooves form a labyrinth space. External impurities have no guiding structure and are difficult to pass through the labyrinth space. By setting the sealing ring, impurities can be prevented from hindering the installation of the dustproof structure, thus improving the practicality of the dustproof labyrinth ring for the shaft end seal of the crusher. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the dustproof labyrinth ring for the shaft end seal of the crusher proposed in this utility model;

[0021] Figure 2 This is a perspective view of the sealing ring proposed in this utility model;

[0022] Figure 3 This is a side view of the annular cavity plate proposed in this utility model;

[0023] Figure 4 This utility model proposes Figure 1 Enlarged view of A in the middle;

[0024] Figure 5 This utility model proposes Figure 1 A magnified view of B in the middle.

[0025] In the picture:

[0026] 1. Bearing housing; 2. Bearing; 3. Shaft body; 4. Dustproof ring; 5. Sealing ring; 6. Annular groove; 7. Annular protrusion; 8. Connecting pipe; 9. Filter screen plate; 10. Moving rod; 11. Piston block; 12. Clamping plate; 13. Telescopic spring; 14. Air inlet pipe; 15. Threaded through hole; 16. Fastening bolt; 17. Mounting hole; 18. Insertion hole; 19. Insertion rod; 20. Annular cavity plate; 21. Air storage cylinder. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a dustproof labyrinth ring for a crusher shaft end seal is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5As shown, the dustproof labyrinth ring for the shaft end sealing of the crusher according to an embodiment of the present invention includes a bearing seat 1, a bearing 2 is disposed inside the bearing seat 1, and a shaft 3 passes through the inside of the bearing 2. Two sets of sealing rings 5 ​​are sleeved on the side wall of the shaft 3. Dustproof rings 4 are disposed on both sides of the bearing seat 1. An annular cavity plate 20 and multiple sets of air storage cylinders 21 are fixedly installed on both sides of the bearing seat 1. Multiple sets of annular protrusions 7 are disposed on the facing surfaces of the two sets of sealing rings 5. Multiple sets of annular grooves 6 are disposed on the far surfaces of the two sets of dustproof rings 4. A filter screen plate 9 is fixedly passed through the facing ends of the multiple sets of air storage cylinders 21 on the same side. Multiple sets of filter screen plates 9 have sliding rods 10 inside, and piston blocks 11 are installed at the far ends of multiple sets of moving rods 10 on the same side. Clamping plates 12 are installed at the opposite ends of multiple sets of moving rods 10 on the same side. Telescopic springs 13 are sleeved on the side walls of multiple sets of moving rods 10 on the same side. Connecting pipes 8 pass through multiple sets of air storage cylinders 21 and one set of annular cavity plates 20 on the same side. Air inlet pipes 14 pass through the outer walls of both sets of annular cavity plates 20. Through the annular cavity plates 20 and air storage cylinders 21, the dustproof structure can be quickly disassembled and assembled, which brings convenience to the disassembly and assembly of the dustproof labyrinth ring dustproof structure for the shaft end seal of the crusher.

[0030] In one embodiment, control valves are provided on the side walls of both sets of air intake pipes 14, and the two sets of control valves serve to open and close the two sets of air intake pipes 14.

[0031] In one embodiment, the diameter of multiple sets of annular protrusions 7 on the same side decreases sequentially from the outside to the inside.

[0032] In one embodiment, the diameter of multiple annular grooves 6 on the same side decreases sequentially from the outside to the inside.

[0033] In one embodiment, the side wall of the shaft body 3 is provided with two sets of mounting holes 17, and the outer walls of the two sets of sealing rings 5 ​​are provided with threaded through holes 15 and insertion holes 18. Fastening bolts 16 pass through the interior of the two sets of threaded through holes 15, and insertion rods 19 are installed at one end of the two sets of fastening bolts 16. By setting the sealing rings 5, impurities can be prevented from hindering the installation of the dustproof structure, thus improving the practicality of the dustproof labyrinth ring for the shaft end seal of the crusher.

[0034] In one embodiment, the two sets of threaded through holes 15 and the two sets of fastening bolts 16 are threaded together to facilitate adjustment of the position of the two sets of fastening bolts 16.

[0035] Working principle:

[0036] When actually using the dustproof labyrinth rings for the shaft end seal of the crusher, the two sets of dustproof rings 4 and the two sets of sealing rings 5 ​​can be moved to both sides of the bearing seat 1, and then the shaft body 3 can be passed through the bearing 2, the two sets of dustproof rings 4 and the two sets of sealing rings 5. After that, the two sets of dustproof rings 4 can be attached to both sides of the bearing seat 1. Then, one end of the two sets of air inlet pipes 14 can be connected to the output end of the external air pump. After the external air pump is powered on, air can enter the interior of the two sets of annular cavity plates 20 through the two sets of air inlet pipes 14. The air inside the annular cavity plate 20 on the same side can enter the interior of the multiple sets of air storage cylinders 21 on the same side through the multiple sets of connecting pipes 8 on the same side. The air can push multiple sets of piston blocks 11 on the same side. These piston blocks 11, via multiple sets of moving rods 10, cause multiple sets of clamping plates 12 on the same side to move towards each other. Simultaneously, the piston blocks 11 and the filter screen plates 9 on the same side can clamp multiple sets of telescopic springs 13. When the clamping plates 12 contact a set of dustproof rings 4, a control valve on the same side is closed, fixing the dustproof rings 4. Opening the control valve on the same side allows the telescopic springs 13 to push the piston blocks 11 back to their original position due to their own elasticity. Afterward, the dustproof rings 4 can be removed. The use of another set of dustproof rings 4 is similar. As can be seen from the operation, the annular cavity plate 20 and the air storage cylinder 21 allow for quick disassembly and assembly of the dustproof structure, facilitating the disassembly and assembly of the dustproof labyrinth ring dustproof structure for the crusher's shaft end seal. Furthermore, according to the above operation, after the two sets of dustproof rings 4 are installed, the two sets of sealing rings 5 ​​can be moved towards each other by hand. When multiple sets of annular protrusions 7 are inserted into multiple annular grooves 6, the two sets of threaded through holes 15 and two sets of fastening bolts 16 engage with each other. The operator can then manually rotate the two sets of fastening bolts 16 clockwise, causing the two sets of insertion rods 19 to gradually move into the two sets of mounting holes 17 and two sets of insertion holes 18. During this process, the two sets of insertion rods 19 can push out the impurities inside the two sets of mounting holes 17 and the two sets of insertion holes 18. After the two sets of sealing rings 5 ​​are disassembled, the two sets of fastening bolts 16 can be reinserted into the two sets of threaded through holes 15 to prevent impurities from adsorbing on the surfaces of the two sets of threaded through holes 15 and the two sets of fastening bolts 16. The gaps between the multiple sets of annular protrusions 7 and the multiple sets of annular grooves 6 form a labyrinth space. External impurities have no guiding structure and have difficulty passing through the labyrinth space. By setting the sealing rings 5, impurities can be prevented from hindering the installation of the dust-proof structure, thus improving the practicality of the dustproof labyrinth ring for the shaft end seal of the crusher.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof labyrinth ring for sealing the shaft end of a crusher, characterized in that, The bearing housing includes a bearing seat (1), inside which a bearing (2) is installed, and a shaft (3) runs through the inside of the bearing (2). Two sets of sealing rings (5) are fitted onto the side wall of the shaft (3). Dustproof rings (4) are provided on both sides of the bearing seat (1). Annular cavity plates (20) and multiple sets of air storage cylinders (21) are fixedly installed on both sides of the bearing seat (1). Multiple sets of annular protrusions (7) are provided on the facing surfaces of the two sets of sealing rings (5). Multiple sets of annular grooves (6) are provided on the far surfaces of the two sets of dustproof rings (4). The multiple sets of air storage cylinders (21) on the same side face each other. Each end is fixedly penetrated by a filter screen plate (9). Multiple filter screen plates (9) on the same side are slidably penetrated by moving rods (10). Piston blocks (11) are installed at the far ends of multiple moving rods (10) on the same side. Clamping plates (12) are installed at the opposite ends of multiple moving rods (10) on the same side. Telescopic springs (13) are sleeved on the side walls of multiple moving rods (10) on the same side. Connecting pipes (8) pass through between multiple air storage cylinders (21) on the same side and one annular cavity plate (20) on the same side. Air inlet pipes (14) pass through the outer walls of both annular cavity plates (20).

2. The dustproof labyrinth ring for shaft end sealing of a crusher according to claim 1, characterized in that, Both sets of air intake pipes (14) are equipped with control valves on their side walls.

3. The dustproof labyrinth ring for shaft end sealing of a crusher according to claim 1, characterized in that, The diameter of the multiple annular protrusions (7) on the same side decreases sequentially from the outside to the inside.

4. The dustproof labyrinth ring for shaft end sealing of a crusher according to claim 1, characterized in that, The diameter of the multiple annular grooves (6) on the same side decreases sequentially from the outside to the inside.

5. The dustproof labyrinth ring for shaft end sealing of a crusher according to claim 1, characterized in that, The side wall of the shaft (3) is provided with two sets of mounting holes (17). The outer walls of the two sets of sealing rings (5) are provided with threaded through holes (15) and insertion holes (18). Fastening bolts (16) pass through the interior of the two sets of threaded through holes (15). Insert rods (19) are installed at one end of the two sets of fastening bolts (16).

6. The dustproof labyrinth ring for a crusher shaft end seal according to claim 5, characterized in that, The two sets of threaded through holes (15) and the two sets of fastening bolts (16) are threaded and engaged with each other.

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