Oil way anti-pollution structure of crusher

Abstract

The utility model relates to an oil way anti-pollution structure of a crusher, which is provided with a crusher, the crusher comprises a feed hopper, an upper frame body assembly, a lower frame body assembly and a horizontal shaft assembly, the lower frame body assembly is provided with a dustproof cylinder, the inner wall of the dustproof cylinder is provided with a square straight groove, and the horizontal shaft assembly is provided with a horizontal shaft. The air pipe assembly extends to the top from the lower edge of the dustproof barrel to form a square groove channel, the air pipe assembly comprises an air pipe joint, a hard air pipe and a soft air pipe, the hard air pipe is contained in the square groove channel in the dustproof barrel, the air pipe joint is arranged at the lower edge of the dustproof barrel, and the hard air pipe is connected with the air pipe joint; a channel hole corresponding to the air pipe connector is formed in the lower frame body assembly, and a soft air pipe extends into the channel hole from the outside and then reaches the air pipe connector to be connected with the air pipe connector. The dust-proof device can improve the dust-proof effect of the crusher, improve the environment of a lubricating system, ensure the cleanness of lubricating oil, prolong the service life of the lubricating oil, reduce the abrasion of core parts, save the operation cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral processing equipment, in particular to an oil circuit anti-pollution structure of a crusher. Background Art

[0002] In the mineral processing industry, cone crushers are primarily used for both secondary and tertiary crushing. They utilize a compression crushing principle. The convex liner on the convex surface and the concave liner on the concave surface clamp the material to be crushed during operation, reducing it from large to small sizes. During operation, when the convex surface approaches the concave surface, the material between them is crushed. When the convex surface separates from the concave surface, the crushed product is discharged through the discharge port under the influence of gravity. The convex surface of a cone crusher has a high frequency and large swing stroke, which rapidly impacts the material within the crushing chamber. Furthermore, a parallel crushing zone with a certain length at the bottom of the crushing chamber ensures that the material is crushed at least once within this parallel zone. Consequently, cone crushers offer advantages such as a high crushing ratio, high output, low power consumption, uniform product size, and suitability for crushing hard materials.

[0003] Cone crushers are equipped with lubrication and dust control systems. The lubrication system delivers lubricating oil to various components, while the dust control system prevents external dust from entering the crusher. Conventional dust control methods for cone crushers involve directing positive pressure air into the lower frame through an inlet above the horizontal shaft box. The air then passes through the lubrication system and is discharged from the dust control cylinder, creating a positive pressure zone within the dust control cylinder. This creates a poor dust control effect. Even with conventional air ducting installed within the dust control cylinder, problems such as interference with the air duct inside the dust control cylinder during high eccentricity and when the main shaft descends are difficult to resolve. Utility Model Content

[0004] In response to the shortcomings of the above-mentioned existing cone crushers, such as poor dust prevention effect, the applicant provides a rationally structured oil circuit anti-pollution structure for the crusher, which can improve the dust prevention effect of the crusher, improve the lubrication system environment, ensure the cleanliness of the lubricating oil, extend the service life of the lubricating oil, reduce the wear of core components, and save operating costs.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A crusher oil circuit anti-pollution structure has a crusher, the crusher includes a feed hopper, an upper frame assembly, a lower frame assembly and a horizontal shaft assembly, the feed hopper is located at the top of the upper frame assembly, the interior of the upper frame assembly is connected to the interior of the lower frame assembly to form a crushing chamber of the crusher, the main shaft assembly is located inside the crusher, an eccentric sleeve assembly is provided on the lower part of the main shaft assembly, a horizontal shaft assembly is laterally provided on the side of the lower frame assembly, the horizontal shaft assembly and the eccentric sleeve assembly cooperate with each other, and the lower frame assembly is connected to the lower frame assembly. A dustproof cylinder is provided on the body assembly, and a square straight groove is opened on the inner wall of the dustproof cylinder, which extends from the lower edge of the dustproof cylinder to the top to form a square groove channel. The air duct assembly includes an air duct joint, a hard air duct and a soft air duct. The hard air duct is accommodated in the square groove channel on the dustproof cylinder, the air duct joint is set at the lower edge of the dustproof cylinder, the hard air duct is connected to the air duct joint, and a channel hole corresponding to the air duct joint is opened in the lower frame assembly. The soft air duct extends into the channel hole from the outside and reaches the air duct joint and is connected to the air duct joint.

[0007] As a further improvement of the above technical solution:

[0008] A convex body is provided on the upper part of the main shaft assembly, and a concave lining plate is provided on the inner side of the cavity of the lower frame assembly. The upper part of the concave lining plate is a feed opening, and the lower part of the concave lining plate is opened and cooperates with the convex body on the main shaft assembly.

[0009] The dustproof cylinder is covered above the eccentric sleeve assembly and covers the connection between the horizontal shaft assembly and the eccentric sleeve assembly.

[0010] A support plate and a dustproof sealing ring are provided on the lower frame assembly located on the outer periphery of the dustproof cylinder. The support plate is an annular structure and is fixedly installed on the inner wall of the lower frame assembly. The dustproof sealing ring is an annular structure and is fixedly provided above the support plate.

[0011] The dustproof cylinder adopts a hollow cylindrical structure, including an upper straight cylindrical section and a lower inclined cover section with an opening inclined outward. The straight cylindrical section and the inclined cover section are fixedly connected or integrally formed.

[0012] A square straight groove is provided on the inner wall of the straight cylindrical section at the upper part of the dustproof tube. The square straight groove is arranged vertically, reaches the top of the straight cylindrical section of the dustproof tube and opens at the top. A square straight groove is provided on the inner wall of the inclined cover section at the lower part of the dustproof tube. The square straight groove extends from the edge of the dustproof tube to the center, reaches the bottom of the straight cylindrical section of the dustproof tube and is connected with the square straight groove on the inner wall of the straight cylindrical section.

[0013] The hard air duct does not protrude from the square groove channel on the dustproof cylinder.

[0014] The rigid air duct adopts a flat square tube structure.

[0015] The hard air duct is arranged along the direction of the square groove channel on the dustproof cylinder, and the hard air duct adopts a bending structure that matches the square groove channel on the dustproof cylinder.

[0016] A plurality of square groove channels are distributed in an array on the dustproof cylinder, and a plurality of air duct components corresponding to the square groove channels are arranged on the dustproof cylinder.

[0017] The beneficial effects of the utility model are as follows:

[0018] This utility model can enhance the dust prevention effect of the crusher, improve the lubrication system environment, ensure the cleanliness of the lubricating oil, extend the service life of the lubricating oil, reduce the wear of core components, and save operating costs. This utility model uses a hard air duct to be set in the square groove channel of the dustproof barrel without being exposed. This can solve problems such as interference between the air duct and the inside of the dustproof barrel when there is a large eccentricity and when the main shaft is lowered. Moreover, the hard air duct adopts a flat square tube structure to ensure that the hard air duct matches the square groove channel on the dustproof barrel, while ensuring a sufficiently large positive pressure air volume. This utility model fully utilizes the original structure of the existing dustproof barrel and is widely applicable to various existing dustproof barrels.

[0019] The positive pressure airflow of this utility model enters through a dedicated air duct on the lower frame and is discharged through the pre-set air duct outlet of the dustproof cylinder, completely avoiding contact with the lubricating oil. This ensures a sufficiently high positive pressure airflow without blowing out the lubricating oil, reducing wear on the dustproof seal and extending its life. It also ensures that the gap between the dustproof seal and the dustproof cylinder does not exceed the limit, more effectively preventing dust from entering the lubrication system and contaminating the lubricating oil. This reduces wear on related components immersed in the lubricating oil, extends the service life of the lubricating oil and components, and reduces equipment failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the crusher described in the utility model.

[0021] Figure 2 This is a schematic diagram of the dustproof cylinder described in the present invention.

[0022] Figure 3 It is a cross-sectional view of the dustproof cylinder described in the present invention.

[0023] Figure 4 It is a three-dimensional diagram of the dustproof cylinder described in the present invention.

[0024] Figure 5 for Figure 4 A magnified schematic diagram of part A in FIG.

[0025] The following are marked in the figure: 1. Feed hopper; 2. Upper frame assembly; 3. Lower frame assembly; 4. Horizontal shaft assembly; 5. Main shaft assembly; 6. Eccentric sleeve assembly; 7. Concave lining plate; 8. Convex body; 9. Dustproof cylinder; 10. Support plate; 11. Dustproof sealing ring; 12. Duct joint; 13. Hard duct. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1 to 5 As shown, the oil circuit anti-pollution structure of the crusher described in the present invention has a crusher, which includes a feed hopper 1, an upper frame assembly 2, a lower frame assembly 3 and a horizontal shaft assembly 4. The upper frame assembly 2 and the lower frame assembly 3 are fixedly connected to each other to form the main body of the crusher. The feed hopper 1 is located at the top of the upper frame assembly 2 and is interconnected with the interior of the upper frame assembly 2. The upper frame assembly 2 is located above the lower frame assembly 3, and the interior of the upper frame assembly 2 is connected to the interior of the lower frame assembly 3, together forming the crushing chamber of the crusher. A main shaft assembly 5 is vertically arranged in the crushing chamber of the upper frame assembly 2 and the lower frame assembly 3. The main shaft assembly 5 is located in the center of the crusher. An eccentric sleeve assembly 6 is arranged on the lower part of the main shaft assembly 5, and a convex body 8 is arranged on the upper part of the main shaft assembly 5.

[0028] A horizontal shaft assembly 4 is laterally arranged on the side of the lower frame assembly 3. The horizontal shaft assembly 4 extends laterally from the outside of the lower frame assembly 3 into the interior of the lower frame assembly 3. A bevel gear is arranged at the end of the horizontal shaft assembly 4 inside the lower frame assembly 3. An eccentric wheel is arranged on the outer circumference of the eccentric sleeve assembly 6. The main shaft assembly 5 is located at the axis of the eccentric wheel. The outer contour of the eccentric wheel adopts bevel teeth. The bevel gear of the horizontal shaft assembly 4 and the bevel teeth on the eccentric sleeve assembly 6 are orthogonal to each other, forming a meshing spur bevel gear fit. When the horizontal shaft assembly 4 rotates in the horizontal direction, the meshing fit drives the eccentric sleeve assembly 6 to rotate in the vertical direction, thereby driving the main shaft assembly 5 to perform eccentric movement.

[0029] A concave liner 7 is provided on the inner side of the cavity of the lower frame assembly 3. The upper part of the concave liner 7 is a feed opening, and the lower part of the concave liner 7 is opened and cooperates with the convex body 8 on the main shaft assembly 5. The passage in the crushing cavity is formed between the concave liner 7 and the convex body 8, which squeezes the mineral passing through the crushing cavity to crush it.

[0030] The crusher is equipped with a lubrication system and a dust control system. The lubrication system transmits lubricating oil to various parts of the cone crusher, while the dust control system prevents external dust from entering the crusher. The lubrication system mainly acts on the horizontal shaft assembly 4 and the eccentric sleeve assembly 6. To prevent external dust from entering the crusher, especially entering the horizontal shaft assembly 4 and the eccentric sleeve assembly 6, which could cause equipment failure, dust control structures are required at these locations.

[0031] A dust shield 9 is mounted on the lower frame assembly 3 within the crushing chamber. Dust shield 9 utilizes a hollow cylindrical structure, comprising an upper straight cylindrical section and a lower, outwardly tilted, slanted cover section. The upper and lower sections are fixedly connected or integrally formed. Dust shield 9 is fixedly mounted on the lower frame assembly 3 and positioned at the periphery of the main shaft assembly 5. It covers the eccentric sleeve assembly 6 and the connection between the horizontal shaft assembly 4 and the eccentric sleeve assembly 6, providing dust protection and protection for the two assemblies.

[0032] A support plate 10 and a dustproof seal ring 11 are provided on the lower frame assembly 3, located on the outer periphery of the dustproof tube 9. The support plate 10 is an annular structure and is fixedly mounted on the inner wall of the lower frame assembly 3. The dustproof seal ring 11 is an annular structure and is fixedly mounted above the support plate 10. Above the dustproof seal ring 11 is the space where the inner cavity of the dustproof tube 9 is located. The dustproof seal ring 11 seals the space where the inner cavity of the dustproof tube 9 is located, thereby achieving sealed protection for the space between the horizontal shaft assembly 4 and the eccentric sleeve assembly 6. Below the dustproof seal ring 11 is a space where dust is easily present, and external dust can easily enter the interior of the dustproof tube 9 through the dustproof seal ring 11.

[0033] A square straight groove is provided on the inner wall of the straight cylindrical section at the upper part of the dustproof tube 9. The square straight groove is arranged vertically, reaches the top of the straight cylindrical section of the dustproof tube 9 and opens at the top. A square straight groove is provided on the inner wall of the inclined cover section at the lower part of the dustproof tube 9. The square straight groove extends from the edge of the dustproof tube 9 to the center, reaches the bottom of the straight cylindrical section of the dustproof tube 9, and is connected with the square straight groove on the inner wall of the straight cylindrical section, thereby forming a square groove channel for accommodating the dustproof air duct.

[0034] The present invention also includes an air duct assembly, which includes an air duct joint 12, a hard air duct 13 and a soft air duct. The hard air duct 13 is accommodated in the square groove channel on the dustproof tube 9 and is arranged along the direction of the square groove channel. The air duct joint 12 is arranged at the edge of the inclined cover section of the dustproof tube 9, and the starting end of the hard air duct 13 is interconnected with the air duct joint 12. The hard air duct 13 is always located in the square groove channel on the dustproof tube 9 and does not protrude from the square groove channel on the dustproof tube 9. Preferably, the hard air duct 13 adopts a flat square tube structure. In order to match the square groove channel on the dustproof tube 9, the hard air duct 13 can adopt a bent structure. A channel hole corresponding to the air duct joint 12 is opened in the lower frame assembly 3, and the soft air duct is accommodated in the channel hole. After extending into the channel hole from the outside, it reaches the air duct joint 12 and is interconnected with the air duct joint 12. The externally installed positive pressure blower is interconnected with the soft air duct and the rigid air duct 13, supplying a certain amount of positive pressure air into the soft air duct and the rigid air duct 13. The pipes in the air duct assembly can be connected using tees, reducers, etc. Preferably, a plurality of square slot channels are arranged in an array on the dustproof cylinder 9, and a plurality of air duct assemblies corresponding to the square slot channels are arranged on the dustproof cylinder 9.

[0035] The positive pressure airflow enters through the soft air duct in the passage hole of the lower frame assembly 3, then passes through the hard air duct 13 and is discharged from the air duct outlet at the top of the dustproof cylinder 9, without any contact with the lubricating oil. This ensures that the positive pressure airflow is sufficiently large without blowing out the lubricating oil, reducing the wear of the dustproof seal 11 and extending its life. It also ensures that the gap between the dustproof seal 11 and the dustproof cylinder 9 does not exceed the limit, more effectively preventing dust from entering the lubrication system and contaminating the lubricating oil, thereby reducing the wear of related components immersed in the lubricating oil, extending the service life of the lubricating oil and components, and reducing the failure rate of the equipment.

[0036] The present invention adopts a hard air duct 13 which is arranged in the square groove channel of the dustproof tube 9 without being exposed, which can solve the problems such as the air duct interference with the inner side of the dustproof tube 9 when the eccentricity is large and the main shaft is lowered. Moreover, the hard air duct 13 adopts a flat square tube structure to ensure that the hard air duct 13 matches the square groove channel on the dustproof tube 9, while ensuring a sufficiently large positive pressure air volume. The present invention opens a square groove channel on the dustproof tube 9 to realize the arrangement of the above-mentioned hard air duct 13. There is no need to change the original structure of the existing dustproof tube 9. It is easy to realize by milling out a straight groove, and is widely applicable to various existing dustproof tubes 9. The present invention opens a channel hole in the lower frame assembly 3, and the soft air duct is accommodated in the channel hole. There is no need to change the original structure of the existing lower frame assembly 3. Only one channel hole is needed, such as by gas cutting, which is easy to realize and has strong applicability.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A crusher oil circuit anti-pollution structure, characterized by: A crusher is provided, which comprises a feed hopper (1), an upper frame assembly (2), a lower frame assembly (3) and a horizontal shaft assembly (4); the feed hopper (1) is located at the top of the upper frame assembly (2); the interior of the upper frame assembly (2) is connected to the interior of the lower frame assembly (3) to form a crushing chamber of the crusher; the main shaft assembly (5) is located inside the crusher; an eccentric sleeve assembly (6) is provided on the lower part of the main shaft assembly (5); a horizontal shaft assembly (4) is provided laterally on the side of the lower frame assembly (3); the horizontal shaft assembly (4) and the eccentric sleeve assembly (6) cooperate with each other; a dustproof sleeve is provided on the lower frame assembly (3) (9), a square straight groove is provided on the inner wall of the dustproof cylinder (9), extending from the lower edge of the dustproof cylinder (9) to the top to form a square groove channel, the air duct assembly includes an air duct joint (12), a hard air duct (13) and a soft air duct, the hard air duct (13) is accommodated in the square groove channel on the dustproof cylinder (9), the air duct joint (12) is provided at the lower edge of the dustproof cylinder (9), the hard air duct (13) is connected to the air duct joint (12), a channel hole corresponding to the air duct joint (12) is provided in the lower frame assembly (3), the soft air duct extends from the outside into the channel hole and reaches the air duct joint (12) and is connected to the air duct joint (12).

2. The oil circuit anti-pollution structure of the crusher according to claim 1, characterized in that: A convex body (8) is provided on the upper part of the main shaft assembly (5), and a concave lining plate (7) is provided on the inner side of the cavity of the lower frame assembly (3). The upper part of the concave lining plate (7) is a feed opening, and the lower part of the concave lining plate (7) is open and cooperates with the convex body (8) on the main shaft assembly (5).

3. The anti-pollution structure of the oil circuit of the crusher according to claim 1, characterized in that: The dustproof cylinder (9) is covered above the eccentric sleeve assembly (6) and covers the connection between the horizontal shaft assembly (4) and the eccentric sleeve assembly (6).

4. The anti-pollution structure of the oil circuit of the crusher according to claim 1, characterized in that: A support plate (10) and a dustproof sealing ring (11) are provided on the lower frame assembly (3) located on the outer periphery of the dustproof cylinder (9); the support plate (10) is an annular structure and is fixedly mounted on the inner wall of the lower frame assembly (3); the dustproof sealing ring (11) is an annular structure and is fixedly mounted above the support plate (10).

5. The oil circuit anti-pollution structure of the crusher according to claim 1, characterized in that: The dustproof cylinder (9) adopts a hollow cylindrical structure, comprising an upper straight cylindrical section and a lower inclined cover section with an opening inclined outward, wherein the straight cylindrical section and the inclined cover section are fixedly connected or integrally formed.

6. The anti-pollution structure for the oil circuit of the crusher according to claim 5, characterized in that: A square straight groove is provided on the inner wall of the straight cylindrical section at the upper part of the dustproof tube (9), and the square straight groove is arranged vertically, reaches the top of the straight cylindrical section of the dustproof tube (9) and is open at the top. A square straight groove is provided on the inner wall of the oblique cover section at the lower part of the dustproof tube (9), and the square straight groove extends from the edge of the dustproof tube (9) to the center, reaches the bottom of the straight cylindrical section of the dustproof tube (9) and is connected with the square straight groove on the inner wall of the straight cylindrical section.

7. The anti-pollution structure for the oil circuit of a crusher according to claim 1, characterized in that: The hard air duct does not protrude from the square groove channel on the dustproof cylinder (9).

8. The anti-pollution structure for the oil circuit of a crusher according to claim 1, characterized in that: The hard air duct (13) adopts a flat square tube structure.

9. The anti-pollution structure for the oil circuit of a crusher according to claim 1, characterized in that: The hard air duct (13) is arranged along the direction of the square groove channel on the dustproof cylinder (9), and the hard air duct (13) adopts a bending structure that matches the square groove channel on the dustproof cylinder (9).

10. The anti-pollution structure for the oil circuit of a crusher according to claim 1, characterized in that: A plurality of square groove channels are distributed in an array on the dustproof cylinder (9), and a plurality of air duct assemblies corresponding to the square groove channels are arranged on the dustproof cylinder (9).

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