CN216407729U - Sealing mechanism for crusher - Google Patents
Sealing mechanism for crusher Download PDFInfo
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- CN216407729U CN216407729U CN202123244940.XU CN202123244940U CN216407729U CN 216407729 U CN216407729 U CN 216407729U CN 202123244940 U CN202123244940 U CN 202123244940U CN 216407729 U CN216407729 U CN 216407729U
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- sealing
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- bearing
- crusher
- movable ring
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Abstract
The utility model discloses a sealing mechanism for a crusher, which comprises a sealing movable ring sleeved on a transmission main shaft and a bearing end cover, wherein a mechanical sealing assembly matched with the sealing movable ring is arranged on the bearing end cover, one end of the sealing movable ring is abutted against the end face of the outer side of a rotating bearing, and the other end of the sealing movable ring is attached to the mechanical sealing assembly to form an end face sealing structure. In the breaker course of operation, the transmission main shaft is high-speed rotatory, mechanical seal subassembly and the relative rotation of sealed rotating ring on the bearing end cover, adopt the end face seal form to realize sealed, and the lubricating oil in the oil chamber outside the transmission main shaft forms the lubricating oil film in sealed rotating ring and mechanical seal subassembly contact surface department, sealing member life has been improved, need not frequent inspection, the later maintenance manpower is lower with the cost, application scope is wider, can avoid totally that the rubber structure that leads to because of various factor changes ages with sealed inefficacy scheduling problem, therefore, the clothes hanger is strong in practicability.
Description
Technical Field
The utility model relates to a sealing mechanism for a crusher, and belongs to the technical field of mine crushers and crushers.
Background
At present, in the mine equipment industry, the adopted sealing structure is basically rubber sealing, and particularly in a vertical crushing (crushing) machine, the rotary sealing is framework oil sealing which has the advantages of simple structure and low manufacturing cost; the sealing compensation amount is large, and the requirement on the precision of the sealed piece is relatively low. But the disadvantage is that the framework oil seal is not suitable for high-speed occasions; and the bearing pressure is limited, and the device is not suitable for being used in high-pressure occasions.
Along with market refinement and higher requirements on final finished products, the rotating speed of a crushing rotating shaft of the crusher is increased, the requirement on bearing lubrication is higher, the pressure and the circulation amount of lubricating oil are increased, and the oil leakage phenomenon is easy to occur by adopting common rubber sealing. The equipment operation is influenced, and the maintenance labor and cost investment of the equipment are large.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is an object of the present invention to provide a sealing mechanism for a crusher, which overcomes the disadvantages of the prior art.
The purpose of the utility model is realized by the following technical scheme:
a sealing mechanism for a crusher is used for sealing a rotary bearing on a transmission main shaft of crushing equipment and comprises a sealing movable ring sleeved on the transmission main shaft and a bearing end cover, wherein a mechanical sealing assembly matched with the sealing movable ring is arranged on the bearing end cover, one end of the sealing movable ring is abutted against the end face of the outer side of the rotary bearing, and the other end of the sealing movable ring is attached to the mechanical sealing assembly to form an end face sealing structure.
The bearing end cover comprises a cover body, wherein an oil groove and an oil duct communicated with the oil groove are arranged on the inner side of the cover body, a shaft hole is formed in the center of the cover body, and a sealing groove is formed in the shaft hole; the mechanical seal assembly comprises a seal static ring arranged in the shaft hole and a pushing mechanism arranged in the seal groove, and the seal static ring is fixed in the shaft hole through the pushing mechanism.
The pushing mechanism comprises an L-shaped adjusting sleeve, an outer sleeve matched with the L-shaped adjusting sleeve is arranged outside the L-shaped adjusting sleeve, sealing ring grooves are formed between the L-shaped adjusting sleeve and the outer sleeve and on the outer surface of the outer sleeve, and O-shaped rings are arranged in the grooves; and the bottom of the L-shaped adjusting sleeve is provided with an installation groove, and a clamp ring is arranged in the installation groove.
The surface roughness of the contact part of the seal movable ring and the seal static ring is not more than 3.2 μm.
The sealing movable ring and the sealing static ring are made of wear-resistant materials.
Compared with the prior art, the sealing mechanism for the crusher comprises a sealing movable ring and a bearing end cover, wherein the sealing movable ring and the bearing end cover are sleeved on a transmission main shaft, a mechanical sealing assembly matched with the sealing movable ring is arranged on the bearing end cover, the inner side of the sealing movable ring is abutted against the end face of the outer side of a rotating bearing, the outer side of the sealing movable ring is pressed tightly through the bearing end cover with the mechanical sealing assembly, and the sealing mechanism is tightly contacted with the movable ring by using a self-pushing structure of the mechanical sealing assembly in the pressing process to form an end face sealing structure. In the working process of the crusher, the transmission main shaft rotates at a high speed, the mechanical seal assembly on the bearing end cover rotates relative to the seal movable ring, sealing is realized in an end face seal mode, and lubricating oil in an oil cavity on the outer side of the transmission main shaft forms a lubricating oil film on the contact surface of the seal movable ring and the mechanical seal assembly, so that the service life of a sealing element is prolonged, and the applicable speed range is wider.
The utility model has the beneficial effects that:
(1) the utility model has simple structure, changes the traditional radial seal into end face seal, reduces the requirement on the runout of the shaft and has low input cost;
(2) the sealing pressure is adjusted by adopting the pushing mechanism, so that the bearing pressure range is wider;
(3) the end face sealing contact surface is made of wear-resistant materials, an oil film is formed on the contact surface, the service life is long, frequent inspection is not needed, the later maintenance labor and the cost are low, the application range is wide, the problems of rubber structure aging, sealing failure and the like caused by various factor changes can be completely avoided, and the practicability is high.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged structural diagram of a portion a in fig. 1.
Fig. 3 is a partially enlarged structural diagram of part B in fig. 2.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the utility model only and are not limiting upon the scope of the utility model.
As shown in figures 1-3 of the drawings,
the utility model discloses a sealing mechanism for a crusher, which is used for sealing a rotary bearing 2 on a transmission main shaft 1 of crushing equipment and comprises a sealing movable ring 3 sleeved on the transmission main shaft 1 and a bearing end cover 4, wherein a mechanical sealing assembly 5 matched with the sealing movable ring 3 is arranged on the bearing end cover 4, one end of the sealing movable ring is abutted against the outer end face of the rotary bearing 2, and the other end of the sealing movable ring is attached to the mechanical sealing assembly 5 to form an end face sealing structure.
One end of a transmission main shaft 1 of the crushing device is connected with a driving device through a transmission mechanism 6, the other end of the transmission main shaft is provided with a crushing rotor 7, the driving device drives the transmission main shaft 1 to rotate at a high speed in the crushing process, a mechanical sealing assembly 5 on a bearing end cover 4 and a sealing movable ring 3 rotate relatively, sealing is achieved in an end face sealing mode, lubricating oil in an oil cavity on the outer side of the transmission main shaft 1 forms a lubricating oil film at the contact surface of the sealing movable ring 3 and the mechanical sealing assembly 4, and the service life of sealing is prolonged.
The bearing end cover 4 comprises a cover body, an oil groove and an oil duct communicated with the oil groove are arranged on the inner side of the cover body, a shaft hole is formed in the center of the cover body, and a sealing groove is formed in the shaft hole; the mechanical seal assembly 5 comprises a seal static ring 501 arranged in the shaft hole and a pushing mechanism 502 arranged in the seal groove, the seal static ring 501 is fixed in the shaft hole through the pushing mechanism 502, the seal static ring 501 can be in close contact with the seal moving ring 3 to form an end face seal structure through the pushing mechanism 502, seal pressure can be automatically adjusted according to actual needs, seal bearing pressure is large, and the bearing rotating speed range is large.
The pushing mechanism 502 comprises an L-shaped adjusting sleeve 5021 arranged in an oil seal groove of the bearing end cover 4, an outer sleeve 5022 matched with the L-shaped adjusting sleeve 5021 is arranged outside the L-shaped adjusting sleeve 5021, sealing ring grooves are formed between the L-shaped adjusting sleeve 5021 and the outer sleeve 5022 and on the outer surface of the outer sleeve 5022, and an O-shaped ring 5023 is arranged in each groove; the sealing static ring 501 is sleeved in a shaft hole of the bearing end cover 4 and is attached to the inner wall of the L-shaped adjusting sleeve 5021, and fastening is realized under the action of an O-shaped ring 5023; and be equipped with the mounting groove in first adjusting collar 5021 bottom, be equipped with clamp ring 5024 in the mounting groove, when installing bearing end cover 4, sealed quiet ring 501 and sealed rotating ring 3 in close contact with form terminal surface seal structure to can realize sealing pressure's regulation according to clamp ring 5024, O type circle 5023.
The surface roughness of the contact part of the sealing movable ring 3 and the sealing static ring 501 is not more than 3.2 μm.
The sealing movable ring 3 and the sealing static ring 501 are made of wear-resistant materials, so that the sealing effect is good, and the service life is long.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention without departing from the technical spirit of the present invention are within the scope of the present invention.
Claims (5)
1. A sealing mechanism for a crusher, which is used for sealing a rotating bearing (2) on a transmission main shaft (1) of crushing equipment, characterized in that: the sealing device comprises a sealing moving ring (3) and a bearing end cover (4), wherein the sealing moving ring (3) and the bearing end cover (4) are sleeved on a transmission main shaft (1), a mechanical sealing assembly (5) matched with the sealing moving ring (3) is arranged on the bearing end cover (4), one end of the sealing moving ring is abutted to the end face of the outer side of a rotating bearing (2), and the other end of the sealing moving ring is attached to the mechanical sealing assembly (5) to form an end face sealing structure.
2. The sealing mechanism for a crusher of claim 1, wherein: the bearing end cover (4) comprises a cover body, an oil groove and an oil duct communicated with the oil groove are arranged on the inner side of the cover body, a shaft hole is formed in the center of the cover body, and a sealing groove is formed in the shaft hole; the mechanical seal assembly (5) comprises a seal static ring (501) arranged in the shaft hole and a pushing mechanism (502) arranged in the seal groove, and the seal static ring (501) is fixed in the shaft hole through the pushing mechanism (502).
3. The sealing mechanism for a crusher of claim 2, wherein: the pushing mechanism (502) comprises an L-shaped adjusting sleeve (5021), a jacket (5022) matched with the L-shaped adjusting sleeve (5021) is arranged outside the L-shaped adjusting sleeve (5021), sealing ring grooves are formed between the L-shaped adjusting sleeve (5021) and the jacket (5022) and on the outer surface of the jacket (5022), and O-shaped rings (5023) are arranged in the sealing ring grooves; and the bottom of the L-shaped adjusting sleeve (5021) is provided with a mounting groove, and a clamp ring (5024) is arranged in the mounting groove.
4. The sealing mechanism for a crusher of claim 3, wherein: the surface roughness of the contact part of the sealing movable ring (3) and the sealing static ring (501) is not more than 3.2 mu m.
5. The sealing mechanism for a crusher of claim 4, wherein: the sealing movable ring (3) and the sealing static ring (501) are made of wear-resistant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123244940.XU CN216407729U (en) | 2021-12-22 | 2021-12-22 | Sealing mechanism for crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123244940.XU CN216407729U (en) | 2021-12-22 | 2021-12-22 | Sealing mechanism for crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216407729U true CN216407729U (en) | 2022-04-29 |
Family
ID=81284856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123244940.XU Active CN216407729U (en) | 2021-12-22 | 2021-12-22 | Sealing mechanism for crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216407729U (en) |
-
2021
- 2021-12-22 CN CN202123244940.XU patent/CN216407729U/en active Active
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