Dustproof system of crusher

Abstract

The utility model discloses a dustproof system of a crusher, which comprises a movable cone assembly and a support assembly, the movable cone assembly is arranged on the support assembly, a sealing mechanism is arranged between the movable cone assembly and the support assembly, and the sealing mechanism comprises a fixed ring, an adjusting ring, a sealing strip and an adjusting spring; the support assembly is further provided with a positive pressure dustproof mechanism. The sealing strip is installed on the adjusting ring in a gluing and side bolt fixing mode. The adjusting spring is used for abutting against the adjusting ring, it can be ensured that the sealing strip on the adjusting ring can make contact with the movable cone assembly even when the movable cone assembly continuously swings, dust is prevented from entering the sealing strip to pollute lubricating oil, and the sealing strip is convenient to replace in the mode of gluing and side bolt fixing; and through the positive pressure dust prevention mechanism, the air volume of the dust prevention fan can be automatically adjusted according to the monitored air pressure difference between the inner cavity of the crusher and the outside, the outside air is prevented from entering the inner cavity of the crusher, and the service time of lubricating oil is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of crusher dust prevention, and particularly relates to a crusher dust prevention system. Background Art

[0002] Cone crushers are widely used in the metal mining and metallurgical industries, construction industry, cement industry, sand and stone industries, etc. They play a very important role in projects such as nuclear power, highways, airports, and mines. In recent years, due to market demands and changes, domestic crusher users and manufacturers have successively started researching the use and performance of cone crushers, aiming to summarize the experience in the use process and further improve the use performance of crushers through experience, continuously promoting the development of cone crushers.

[0003] Lubricating oil is known as the "blood" of cone crushers, and its pollution degree directly affects the service life of crushers. Therefore, the dust prevention method is also a direction that users, manufacturers, and even scientific research personnel have been exploring. Once the dust prevention problem is optimized or even solved, the cleanliness of the lubricating oil is guaranteed, and the use performance of the cone crusher can be guaranteed to be exerted, and the service life is likely to increase continuously.

[0004] However, a cone crusher is a typical crushing device for medium and fine crushing of hard materials. It adopts the "laminated crushing" principle to improve the primary crushing yield, with simpler and more convenient maintenance and lower operating costs. Measures such as separating the moving cone from the main shaft, thickening the main shaft and fixing it, and only the moving cone making a swinging motion have improved the structural strength. A cone crusher mainly consists of three parts: mechanical, hydraulic, and electrical. The mechanical part takes the external frame as its own foundation, obtains power through an external motor, and transmits the power through a coupling or pulley, driving the small gear to rotate. In the way of gear meshing, it pushes the large gear to rotate along its circumferential direction. Finally, by pushing the moving cone to continuously squeeze the fixed cone, the crushing of materials is realized. Since the wear of the liner is reduced and the self-crushing ability between materials is improved, during the use process, it is strongly recommended to feed the materials into the machine cavity full. Only by feeding the materials full and compacting the internal force between the materials, a part of the internal force can be eliminated by itself, realizing the self-crushing of the materials, thereby achieving the laminated crushing effect of the materials, improving the requirements for the particle shape of the materials, and increasing the crushing output. During the crushing swing process, there are still obvious differences in the structures of different types of cone crushers. It is difficult for a single dust prevention structure to meet the various cone crushing equipment on the market. This requires researchers to fundamentally study the reasons for the pollution of the lubricating oil, find the results from the reasons, trace back to the results, and then optimize and improve, continuously promoting the improvement and development.

[0005] The moving cone assembly part of the conical crusher is in a floating, rotatable and swingable state, and its motion law is divided into regular and irregular. The support assembly part is fixed and immovable. The transmission dust-proof method uses soft rubber for up and down fixation, which puts very high requirements on the performance of the rubber to a certain extent. Once there are deviations in the rubber material, vulcanization method, or even installation dimensions, it is extremely easy to cause problems such as short service life and loose installation. Moreover, once the rubber is worn, it cannot be automatically compensated, and it requires manual observation and replacement in a timely manner. Once it is damaged or falls off, the lubricating oil will be polluted very quickly. As the polluted lubricating oil enters the inner cavity of the equipment, the impurities in the lubricating oil enter between the key parts and rub against each other, directly damaging the equipment parts. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present utility model provides a dust-proof system for a crusher, which solves the problems mentioned in the background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: A dust-proof system for a crusher, including a moving cone assembly and a support assembly. The moving cone assembly is installed on the support assembly, and a sealing mechanism is provided between the moving cone assembly and the support assembly. The sealing mechanism includes a fixed ring, an adjusting ring, a sealing strip and an adjusting spring. The fixed ring is installed on the support assembly through an air duct bolt. The adjusting ring is installed on the outer circle of the fixed ring and can slide up and down freely. The sealing strip is installed on the adjusting ring, and the adjusting spring is installed between the adjusting ring and the support assembly. A positive pressure dust-proof mechanism is also provided on the support assembly.

[0008] Further, the sealing strip is installed on the adjusting ring by means of gluing and side bolts.

[0009] Further, a sealing ring is installed between the adjusting ring and the fixed ring.

[0010] Further, the adjusting spring is in a compressed state.

[0011] Further, a frame is provided at the bottom of the support assembly.

[0012] Further, the positive pressure dust-proof mechanism includes a joint, a frame, an air duct and a dust-proof fan. A joint is provided on the support assembly. Outlet air ducts are provided in both the support assembly and the frame. The joint is connected through the outlet air ducts and air duct bolts provided in the support assembly and the frame. One end of the air duct is connected to the joint, and the other end of the air duct is connected to the dust-proof fan.

[0013] Further, a wind pressure sensor is provided in the outlet air duct, and the wind pressure sensor is electrically connected to the dust-proof fan.

[0014] Compared with the existing technology, the utility model has the following beneficial effects: By using the adjusting spring to press tightly against the adjusting ring, it can ensure that the sealing strip on the adjusting ring can still contact the moving cone assembly even when the moving cone assembly is constantly swinging, isolating the inner cavity of the crusher from the external environment to a certain extent, avoiding dust from entering and contaminating the lubricating oil. Moreover, through the adhesive bonding and side bolt fixing methods, it is convenient to replace the sealing strip and the installation dimensions are more accurate; Through the air pressure sensor in the outlet air duct, the air pressure difference between the inner cavity of the crusher and the outside can be monitored, automatically adjusting the air volume of the dust-proof fan, better ensuring the positive pressure in the inner cavity of the crusher to a certain extent, further preventing the outside air from entering the inner cavity of the crusher, effectively extending the service life of the lubricating oil and ensuring the positive pressure environment in the inner cavity of the crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the installation structure of the adjusting spring of the utility model.

[0017] In the figure: 1. Moving cone assembly; 2. Support assembly; 3. Sealing strip; 4. Adjusting ring; 5. Sealing ring; 6. Fixed ring; 7. Adjusting spring; 8. Connector; 9. Air duct bolt; 10. Frame; 11. Air duct; 12. Dust-proof fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] As Figure 1 - Figure 2 shown, the utility model provides a technical solution: A dust-proof system for a crusher, including a moving cone assembly 1 and a support assembly 2. The moving cone assembly 1 is installed on the support assembly 2, and a sealing mechanism is arranged between the moving cone assembly 1 and the support assembly 2. The sealing mechanism includes a fixed ring 6, an adjusting ring 4, a sealing strip 3 and an adjusting spring 7. The fixed ring 6 is installed on the support assembly 2 through an air duct bolt 9. The adjusting ring 4 is installed on the outer circle of the fixed ring 6 and can slide up and down freely. The sealing strip 3 is installed on the adjusting ring 4, and the adjusting spring 7 is installed between the adjusting ring 4 and the support assembly 2; A positive pressure dust-proof mechanism is also arranged on the support assembly 2; By using the adjusting spring 7 to press tightly against the adjusting ring 4, it can ensure that the sealing strip 3 on the adjusting ring 4 can still contact the moving cone assembly 1 even when the moving cone assembly 1 is constantly swinging, isolating the inner cavity of the crusher from the external environment to a certain extent, avoiding dust from entering and contaminating the lubricating oil.

[0019] Among them, the sealing strip 3 is formed by adhesive vulcanization or integral molding. The sealing strip 3 is installed on the adjusting ring 4 by adhesive bonding and side bolt fixing methods. Through the adhesive bonding and side bolt fixing methods, it is convenient to replace the sealing strip 3 and the installation dimensions are more accurate.

[0020] Among them, the adjusting spring 7 is in a compressed state, which can make the sealing strip 3 on the adjusting ring 4 always tightly pressed, avoiding dust from entering the crusher and polluting the lubricating oil.

[0021] Among them, a frame 10 is provided at the bottom of the support assembly 2.

[0022] Among them, the positive-pressure dust-proof mechanism includes a joint 8, a frame 10, an air duct 11 and a dust-proof fan 12. A joint 8 is provided on the support assembly 2, and outlet air ducts are provided in both the support assembly 2 and the frame 10. The joint 8 is connected through the outlet air ducts and the air duct bolts 9 provided in the support assembly 2 and the frame 10. One end of the air duct 11 is connected to the joint 8, and the other end of the air duct 11 is connected to the dust-proof fan 12; a wind pressure sensor is provided in the outlet air duct, and the wind pressure sensor is electrically connected to the dust-proof fan 12; through the wind pressure sensor in the outlet air duct, the wind pressure difference between the inner cavity of the crusher and the outside can be monitored, and the air volume of the dust-proof fan 12 can be automatically adjusted, better ensuring the positive pressure in the inner cavity of the crusher to a certain extent, further preventing the outside air from entering the inner cavity of the crusher, effectively extending the service time of the lubricating oil, and ensuring the positive-pressure environment in the inner cavity of the crusher.

[0023] Among them, a middle through hole is provided in the air duct bolt 9, which can transmit the air output by the dust-proof fan 12 to the inner cavity of the crusher or transmit the air pressure in the inner cavity of the crusher.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust-proof system for a crusher, comprising a moving cone assembly (1) and a support assembly (2), characterized in that: The moving cone assembly (1) is installed on the support assembly (2), and a sealing mechanism is provided between the moving cone assembly (1) and the support assembly (2). The sealing mechanism includes a fixed ring (6), an adjusting ring (4), a sealing strip (3), and an adjusting spring (7). The fixed ring (6) is installed on the support assembly (2) through an air duct bolt (9). The adjusting ring (4) is installed on the outer ring of the fixed ring (6) and can slide up and down freely. The sealing strip (3) is installed on the adjusting ring (4), and the adjusting spring (7) is installed between the adjusting ring (4) and the support assembly (2). A positive pressure dust-proof mechanism is also provided on the support assembly (2).

2. The dust-proof system of a crusher according to claim 1, characterized in that: The sealing strip (3) is installed on the adjusting ring (4) by means of adhesive bonding and side bolts.

3. The dust-proof system of a crusher according to claim 2, wherein: A sealing ring (5) is installed between the adjusting ring (4) and the fixed ring (6).

4. The dust-proof system of a crusher according to claim 3, characterized in that: The adjusting spring (7) is in a compressed state.

5. The dust-proof system of a crusher according to claim 4, wherein: A frame (10) is provided at the bottom of the support assembly (2).

6. The dust-proof system of a crusher according to claim 5, characterized in that: The positive pressure dust-proof mechanism includes a joint (8), a frame (10), an air duct (11), and a dust-proof fan (12). A joint (8) is provided on the support assembly (2). Outlet air ducts are provided in both the support assembly (2) and the frame (10). The joint (8) is connected through the outlet air ducts provided in the support assembly (2) and the frame (10) and the air duct bolt (9). One end of the air duct (11) is connected to the joint (8), and the other end of the air duct (11) is connected to the dust-proof fan (1).

7. The dust-proof system of a crusher according to claim 6, wherein: A wind pressure sensor is provided in the outlet air duct, and the wind pressure sensor is electrically connected to the dust-proof fan (12).

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