Dustproof sealing structure for single-cylinder cone crusher

Abstract

The utility model discloses a dustproof sealing structure for a single-cylinder cone crusher, which comprises a crusher lower frame body and an eccentric shaft arranged on the lower frame body, the top of the eccentric shaft is provided with a movable cone, a sealing structure is arranged between the eccentric shaft and the movable cone, and the sealing structure comprises a slip ring cover, a support ring, an outer sealing ring and an inner sealing ring, the sliding ring cover is installed on the crusher lower frame body, the inner sealing ring is installed on the peripheral face of the eccentric shaft in a sleeving mode and abuts against the inner side of the sliding ring cover, the supporting ring is installed at the bottom of the movable cone, a sealing cavity is formed between the supporting ring and the movable cone, and the outer sealing ring is installed on the sliding ring cover in a sleeving mode and partially located in the sealing cavity. The dustproof sealing structure can provide two layers of sealing protection for the eccentric shaft, the first layer of sealing is that the outer sealing ring is arranged between the movable cone and the sliding ring cover, the second layer of sealing is that the inner sealing ring is arranged between the sliding ring cover and the eccentric shaft, the outer sealing ring is fixed, the inner sealing ring is of a movable and movable fixed structure, double sealing is achieved, and the sealing effect is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, and in particular to a dustproof sealing structure for a single-cylinder cone crusher. Background Technology

[0002] The single-cylinder hydraulic cone crusher (hereinafter referred to as hydraulic cone crusher) is a common and high-performance crushing equipment. The hydraulic cone crusher uses a single hydraulic cylinder to raise and lower the moving cone, achieving multiple functions such as discharge opening adjustment, cavity clearing, iron overflow protection, and overload protection. Equipped with an electronic intelligent discharge opening control system, it enables further production process control and operation optimization functions. Hydraulic cone crushers can be widely used in various ferrous, non-ferrous, and non-metallic mines, as well as in the sand and gravel industry.

[0003] Currently, to ensure the normal and stable operation of hydraulic cone crushers and extend their service life, their sealing performance is of paramount importance. For example, due to the nature of the working environment of hydraulic cone crushers, many particles or dust can enter the gap between the swing shaft (eccentric rotating shaft) and the frame, which will have a significant negative impact on the rotational sealing of the swing shaft, and may even cause jamming. Therefore, there is an urgent need for a sealing structure that can strengthen the sealing of the swing shaft and has excellent sealing effect. Utility Model Content

[0004] The purpose of this utility model is to provide a dustproof sealing structure for a single-cylinder cone crusher, so as to solve the problem of lacking a sealing structure that can strengthen the sealing of the swing shaft and has excellent sealing effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A dustproof sealing structure for a single-cylinder cone crusher includes a lower frame of the crusher and an eccentric shaft mounted on the lower frame. A movable cone is mounted on the top of the eccentric shaft, and a sealing structure is provided between the eccentric shaft and the movable cone.

[0007] The sealing structure includes a slip ring cover, a support ring, an outer sealing ring, and an inner sealing ring. The slip ring cover is installed on the lower frame of the crusher. The inner sealing ring is fitted onto the outer circumferential surface of the eccentric shaft and abuts against the inner side of the slip ring cover. The support ring is installed at the bottom of the moving cone and a sealing cavity is formed between the two. The outer sealing ring is fitted onto the slip ring cover and is partially located within the sealing cavity.

[0008] A further technical solution is that the upper and lower surfaces of the outer sealing ring form a spherical sliding fit with the inner top and inner bottom surfaces of the sealing cavity, respectively.

[0009] A further technical solution is that the slip ring cover and the lower frame of the crusher are provided with interconnected oil injection channels, and the oil outlet end of the oil injection channel is close to the outer sealing ring and the inner sealing ring.

[0010] A further technical solution is that the outer sealing ring is annular and its outer end faces upward.

[0011] A further technical solution is that the outer sealing ring consists of a support frame and an elastic layer located outside the support frame.

[0012] A further technical solution is that the supporting frame is an iron ring, and the elastic layer is polyurethane.

[0013] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0014] This utility model proposes a dustproof sealing structure for a single-cylinder cone crusher. This dustproof sealing structure can provide two layers of sealing protection for the eccentric shaft. The first layer of sealing is an outer sealing ring between the moving cone and the slip ring cover, which provides the first sealing effect without hindering the rotation of the moving cone. The second layer of sealing is an inner sealing ring between the slip ring cover and the eccentric shaft, which provides the second sealing effect without hindering the rotation of the eccentric shaft. The outer sealing ring is fixed and the inner sealing ring is moving. The moving-fixed structure provides double sealing, which greatly improves the sealing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a dustproof sealing structure for a single-cylinder cone crusher according to the present invention.

[0016] Figure 2 This utility model Figure 1 Schematic diagram of the structure of the inner and outer sealing rings.

[0017] Reference numerals in the attached drawings: 1. Lower frame of the crusher; 2. Eccentric shaft; 3. Moving cone; 4. Sealing structure; 5. Slip ring cover; 6. Support ring; 7. Outer sealing ring; 8. Inner sealing ring; 9. Sealing cavity; 10. Oil injection channel; 11. Support frame; 12. Elastic layer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] This implementation example Figure 1 As shown, a dustproof sealing structure for a single-cylinder cone crusher includes a lower frame 1 and an eccentric shaft 2 mounted on the lower frame 1. A movable cone 3 is mounted on the top of the eccentric shaft 2, and a sealing structure 4 is provided between the eccentric shaft 2 and the movable cone 3.

[0026] The sealing structure 4 includes a slip ring cover 5, a support ring 6, an outer sealing ring 7, and an inner sealing ring 8. The slip ring cover 5 is installed on the lower frame 1 of the crusher. The inner sealing ring 8 is fitted on the outer circumferential surface of the eccentric shaft 2, and the inner sealing ring 8 abuts against the inner side of the slip ring cover 5. The support ring 6 is installed at the bottom of the moving cone 3, and a sealing cavity 9 is formed between the two. The outer sealing ring 7 is fitted on the slip ring cover 5 and is partially located in the sealing cavity 9.

[0027] A sealing structure 4 is provided between the eccentric shaft 2 and the moving cone 3. The outer sealing ring 7 is fitted on the slip ring cover 5 and located in the sealing cavity 9, which provides the first sealing effect without hindering the rotation of the moving cone 3. The inner sealing ring 8 is fitted on the outer circumferential surface of the eccentric shaft 2, which provides the second sealing effect without hindering the rotation of the eccentric shaft. The outer sealing ring is fixed and the inner sealing ring is moving. The fixed-moving structure provides double sealing, which greatly improves the sealing effect.

[0028] Preferably, the upper and lower surfaces of the outer sealing ring 7 form a spherical sliding fit with the inner top and inner bottom surfaces of the sealing cavity 9, respectively.

[0029] The gap between the outer sealing ring 7 and the sealing cavity 9 is filled with lubricating grease.

[0030] The moving cone 3 moves eccentrically in a circular motion along with the eccentric shaft 2 on the lower frame 1 of the crusher. Due to the obstruction of the slip ring cover 5, the moving cone 3 and the support ring 6 move spherically around the outer sealing ring 7. Since a certain amount of grease is filled in the spherical sliding fit gap, a certain dustproof effect can be achieved to prevent dust from entering the machine.

[0031] Preferably, the slip ring cover 5 and the lower frame of the crusher are provided with interconnected oil injection channels 10, and the oil outlet end of the oil injection channel 10 is close to the outer sealing ring 7 and the inner sealing ring 8.

[0032] Lubricating grease can be injected from the outside into the sealing ring 7 and the inner sealing ring 8 through the oil injection channel 10, which facilitates operation.

[0033] Preferably, the outer sealing ring 7 is annular and its outer end faces upward.

[0034] The outer sealing ring 7 facing upwards can press against the moving cone 3, thereby enhancing the sealing effect.

[0035] Example 2:

[0036] Based on the above embodiments, this embodiment, for example Figure 2 As shown, the outer sealing ring 7 consists of a support frame 11 and an elastic layer 12 located outside the support frame 11. The support frame 11 is an iron ring, and the elastic layer 12 is polyurethane.

[0037] The supporting frame 11 provides support and reinforcement, reducing deformation, while the elastic layer 12 can deform to improve the sealing effect.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dustproof sealing structure for a single-cylinder cone crusher, comprising a crusher lower frame (1) and an eccentric shaft (2) disposed on the crusher lower frame (1), wherein a moving cone (3) is mounted on the top of the eccentric shaft (2), characterized in that: A sealing structure (4) is provided between the eccentric shaft (2) and the moving cone (3); wherein, The sealing structure (4) includes a slip ring cover (5), a support ring (6), an outer sealing ring (7), and an inner sealing ring (8). The slip ring cover (5) is installed on the lower frame (1) of the crusher. The inner sealing ring (8) is fitted on the outer circumferential surface of the eccentric shaft (2) and abuts against the inner side of the slip ring cover (5). The support ring (6) is installed at the bottom of the moving cone (3) and a sealing cavity (9) is formed between the two. The outer sealing ring (7) is fitted on the slip ring cover (5) and is partially located in the sealing cavity (9).

2. The dustproof sealing structure for a single-cylinder cone crusher according to claim 1, characterized in that: The upper and lower surfaces of the outer sealing ring (7) form a spherical sliding fit with the inner top and inner bottom surfaces of the sealing cavity (9), respectively.

3. The dustproof sealing structure for a single-cylinder cone crusher according to claim 1, characterized in that: The slip ring cover (5) and the lower frame of the crusher (1) are provided with interconnected oil injection channels (10), and the oil outlet of the oil injection channel (10) is close to the outer sealing ring (7) and the inner sealing ring (8).

4. The dustproof sealing structure for a single-cylinder cone crusher according to claim 1, characterized in that: The outer sealing ring (7) is annular and its outer end faces upward.

5. The dustproof sealing structure for a single-cylinder cone crusher according to claim 1, characterized in that: The outer sealing ring (7) consists of a support frame (11) and an elastic layer (12) located outside the support frame (11).

6. The dustproof sealing structure for a single-cylinder cone crusher according to claim 5, characterized in that: The supporting frame (11) is an iron ring, and the elastic layer (12) is polyurethane.

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