CN211009884U

CN211009884U - Oil chamber sealing structure of multi-cylinder hydraulic cone crusher

Info

Publication number: CN211009884U
Application number: CN201921939881.8U
Authority: CN
Inventors: 肖为民
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-14
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a broken grease chamber seal structure of multi-cylinder hydraulic pressure circular cone, fix the sealed lid on the organism including the bottom, its top is sealed through sealing connection spare and moving cone contact. The utility model has the advantages that the contact type sealing of the multi-cylinder hydraulic cone oil breaking chamber is realized, the leakage of lubricating oil is effectively prevented, the replacement period of the lubricating oil in the cone oil breaking chamber is prolonged, the consumption of the lubricating oil is further reduced, and the cost is saved; meanwhile, each structural part of the sealing assembly and the bottom spherical surface of the movable cone are of spherical structures (without special shapes), special tools are not needed, the machining is simple, the precision machining can be realized, and the machining cost can be reduced by 30%.

Description

Oil chamber sealing structure of multi-cylinder hydraulic cone crusher

Technical Field

The utility model relates to a multi-cylinder hydraulic cone that field extensive uses such as metallurgy, building materials industry is broken, especially relate to the grease chamber seal structure that multi-cylinder hydraulic cone is broken.

Background

The multi-cylinder hydraulic cone crusher is an ideal device for crushing hard and medium-hardness ore and rock, has the characteristics of high production efficiency, economical use and the like, and is widely applied to the industries of metallurgy, building, hydroelectric power, traffic, chemical industry and building materials. The traditional multi-cylinder hydraulic cone crusher comprises a fixed cone 101, a moving cone 102, a vertical shaft 103, an eccentric sleeve 104 and an eccentric counterweight seal labyrinth 105, wherein the bottom of the eccentric counterweight seal labyrinth 105 is in non-contact connection with a machine body 106, while the top of the eccentric counterweight seal labyrinth 105 is in non-contact connection with the bottom of the moving cone 102, and the eccentric counterweight seal labyrinth 105, the moving cone 102 and the machine body 106 enclose an oil chamber of the cone crusher; in operation, the motor transmits power to the large gear 108 through the small gear shaft 107, and the large gear 108 drives the eccentric sleeve 104 and the eccentric counterweight seal labyrinth 105 to rotate around the vertical shaft 103 through rigidity, and the specific structure is shown in fig. 1 and fig. 2. The eccentric weight seal labyrinth 105 described above has the following problems in operation:

firstly, the plane included angle between the central lines of the upper ring surface X and the lower ring surface XI of the eccentric weight seal labyrinth 105 must be equal to the plane included angle between the central lines of the vertical shaft 103 and the outer cylinder at the upper part of the eccentric sleeve 104, so as to ensure that the eccentric weight seal labyrinth 105 continuously and circularly and radially swings along with the driven cone 102. That is to say, the upper sealing ring surface and the lower sealing ring surface of the eccentric counterweight sealing labyrinth 105 are of an alternating type with non-concentricity, and special tooling is needed to meet the precision of parts, so that the processing difficulty is high.

Secondly, for the cone crusher, a large gap exists between the lining of the movable cone 102 and the eccentric sleeve 104 and between the lining of the eccentric sleeve 104 and the vertical shaft 103 to satisfy the relative lubrication of the three so as to ensure the relatively stable operation. However, because the upper ring surface X of the eccentric counterweight seal labyrinth 105 is in non-contact seal with the moving cone 102, the lower ring surface XI is in non-contact seal with the machine body 106, and the gaps between the upper ring surface X and the moving cone 102 are completely offset by the extrusion of the broken objects by the moving cone 102 (see figure 2 in particular), the upper seal ring surface and the moving cone 102 are concentric, and the lower seal ring surface and the machine body 106 are concentric in actual operation, so that the eccentric counterweight seal labyrinth 105 generates negative pressure in an oil chamber due to continuous micro-change in the operation process, the sealing effect is poor, the loss of lubricating oil is large, and external moisture enters the oil chamber to destroy the lubricating performance of the lubricating oil, the lubricating oil replacement period is short, and the vertical shaft is easy to damage and the friction; meanwhile, the eccentric labyrinth sealing ring can agitate oil when running along with the large gear, so that lubricating oil is further leaked.

Disclosure of Invention

An object of the utility model is to provide a broken grease chamber seal structure of multi-cylinder hydraulic pressure circular cone, this grease chamber seal structure have realized that the contact of moving awl and organism is sealed, and is sealed effectual, have prolonged the change cycle of lubricating oil.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

broken grease chamber seal structure of multi-cylinder hydraulic pressure circular cone, fix the sealed lid on the organism including the bottom, its top is sealed through sealing connection spare and moving cone contact.

The sealing connection includes:

the tray is provided with an upper spherical surface and is fixed at the bottom edge of the movable cone;

the sealing ring I is provided with a bottom spherical surface, the bottom spherical surface of the sealing ring I is contacted with the upper spherical surface of the tray, and the inner cylindrical surface of the sealing ring I is contacted with the upper outer cylindrical surface of the sealing cover, so that the tray and the sealing cover are connected in a sealing way;

the bottom of the sealing ring II is clamped in the sealing ring I, and the top spherical surface of the sealing ring II is in contact with the bottom spherical surface of the movable cone and is used for connecting the sealing ring I with the movable cone in a sealing manner;

the upper spherical surface of the tray, the bottom spherical surface of the sealing ring I, the top spherical surface of the sealing ring II and the bottom spherical surface of the movable cone are all concentric with the spherical bearing of the movable cone.

And a guide hole is formed in the sealing ring II from bottom to top, and a compression spring is arranged in the guide hole.

The sealing cover is of a step-shaped structure with the diameter gradually reduced from bottom to top, and is coaxial with the vertical shaft.

The utility model has the advantages that the contact type sealing of the multi-cylinder hydraulic cone oil breaking chamber is realized, the leakage of lubricating oil is effectively prevented, the replacement period of the lubricating oil in the cone oil breaking chamber is prolonged, the consumption of the lubricating oil is further reduced, and the cost is saved; meanwhile, each structural part of the sealing assembly and the bottom spherical surface of the movable cone are of spherical structures (without special shapes), special tools are not needed, the machining is simple, the precision machining can be realized, and the machining cost can be reduced by 30%.

The upper spherical surface of the tray of the utility model is contacted with the lower spherical surface of the sealing ring I in a concentric spherical surface manner, and the top spherical surface of the sealing ring II is contacted with the bottom spherical surface of the movable cone in a concentric spherical surface manner, thereby realizing the contact type sealing of the sealing cover and the movable cone and effectively preventing the lubricating oil from leaking outside; a compression spring in the sealing ring II effectively ensures the spherical contact of the sealing connecting piece, and further prevents the lubricating oil from leaking outwards; the lower part of the sealing cover is fixed on the machine body and provides a fixed rotation center and an up-and-down movement allowance for the sealing ring I.

Drawings

Fig. 1 is a structural schematic diagram of a conventional multi-cylinder hydraulic cone crusher.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is an enlarged structural diagram of B in fig. 3.

Detailed Description

As shown in fig. 3 and 4, broken grease chamber seal structure of multi-cylinder hydraulic pressure circular cone, fix sealed lid 2 on organism 1 including the bottom, sealed connecting piece and 3 contact sealings of moving awl are passed through at its top, sealed connecting piece includes:

a tray 4 with an upper spherical surface, which is fixed at the bottom edge of the movable cone 3;

a sealing ring I with a bottom spherical surface, wherein the bottom spherical surface of the sealing ring I is contacted with the upper spherical surface of the tray 4, and the inner cylindrical surface of the sealing ring I is contacted with the upper outer cylindrical surface of the sealing cover 2, so that the tray 4 and the sealing cover 2 are connected in a sealing way;

the bottom of the sealing ring II is clamped in the sealing ring I, and the top spherical surface of the sealing ring II is in contact with the bottom spherical surface of the movable cone 3 and is used for sealing and connecting the sealing ring I and the movable cone 3;

the upper spherical surface of the tray 4, the bottom spherical surface of the sealing ring I, the top spherical surface of the sealing ring II and the bottom spherical surface of the movable cone 3 are all concentric with the spherical bearing 5 of the movable cone 3.

In order to further ensure the spherical contact among the structures of the sealing connecting piece, a guide hole is formed in the sealing ring II from bottom to top, and a compression spring 6 is arranged in the guide hole.

As shown in figure 1, the sealing cover 2 is of a step-shaped structure with the diameter gradually reduced from bottom to top, is coaxial with the vertical shaft and provides a fixed rotation center and an up-and-down movement allowance for the sealing ring I; a gap exists between the top of the sealing cover 2 and the sealing ring II, and lubricating oil can be guaranteed to lubricate the sealing connecting piece.

During operation, the motor transmits power to the big gear 8 through the small gear shaft 7, the big gear 8 drives the eccentric sleeve 9 and the sealing cover 2 to rotate around the vertical shaft 10 through rigidity, the tray 4, the sealing ring I and the sealing ring II follow-up cone 3 concentrically and continuously and circularly swing in a radial mode, contact sealing is achieved, and sealing effect is good.

The utility model discloses a last sphere of tray 4 is concentric sphere contact with the lower sphere of sealing ring I, and the top sphere of sealing ring II is concentric sphere contact with the end sphere of moving awl 3, has realized that sealed lid 2 is sealed with the contact of moving awl 3, effectively prevents lubricating oil to leak outward, has prolonged the life of grease chamber interior lubricating oil, has further prolonged the change cycle of lubricating oil, and has further reduced the oil gas consumption volume, the cost is reduced.

Claims

1. An oil chamber sealing structure of a multi-cylinder hydraulic cone crusher is characterized in that: comprises a sealing cover with the bottom fixed on a machine body, and the top of the sealing cover is in contact sealing with a movable cone through a sealing connecting piece.

2. The oil chamber sealing structure of the multi-cylinder hydraulic conical breaker according to claim 1, characterized in that: the sealing connection includes:

the bottom of the sealing ring II is clamped in the sealing ring I, and the top spherical surface of the sealing ring II is in contact with the bottom spherical surface of the movable cone and is used for sealing and connecting the sealing ring I and the bottom spherical surface of the movable cone;

3. The oil chamber sealing structure of the multi-cylinder hydraulic conical breaker according to claim 2, characterized in that: and a guide hole is formed in the sealing ring II from bottom to top, and a compression spring is arranged in the guide hole.

4. The oil chamber sealing structure of the multi-cylinder hydraulic conical breaker according to claim 1, characterized in that: the sealing cover is of a step-shaped structure with the diameter gradually reduced from bottom to top, and is coaxial with the vertical shaft.