CN216937641U

CN216937641U - Sealing structure of crusher cutter shaft

Info

Publication number: CN216937641U
Application number: CN202220430143.6U
Authority: CN
Inventors: 李思宇; 张路豪; 邓文龙; 郑毅
Original assignee: Gep Ecotech Co ltd
Current assignee: Gep Ecotech Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-07-12
Anticipated expiration: 2032-03-01

Abstract

The utility model relates to a sealing structure of a cutter shaft of a crusher, which comprises a first sealing mechanism and a second sealing mechanism, wherein the first sealing mechanism is arranged at the transmission end of the cutter shaft, the second sealing mechanism is arranged at the tail end of the cutter shaft, the first sealing mechanism and the second sealing mechanism respectively comprise a sealing ring, an oil seal and a bearing which are sleeved on the cutter shaft, the opening of the oil seal faces the sealing ring, the oil seal, the sealing ring and the bearing are sequentially arranged from the center of the cutter shaft to the end part of the cutter shaft, the opposite sides of the sealing rings at the two ends of the cutter shaft are provided with a partition plate, the partition plates are detachably connected to a machine body, and a space is arranged between each partition plate and the machine body. The sealing cutter shaft has the effect of reducing foreign matters entering the cutter shaft in different levels.

Description

Sealing structure of crusher cutter shaft

Technical Field

The utility model relates to the technical field of crusher sealing structures, in particular to a cutter shaft sealing structure.

Background

When the crusher is used, materials to be crushed, especially household garbage, are crushed by the cutter, partial garbage enters the cutter shaft from the side wall of the crusher, sewage or foreign matters enter the cutter shaft and the machine body, and the cutter shaft is easy to clamp or wear when rotating, so that the normal rotation of the cutter shaft is influenced.

Disclosure of Invention

The utility model provides a sealing structure of a cutter shaft of a crusher, aiming at improving the sealing effect of the cutter shaft of the crusher.

The utility model provides a crusher cutter shaft sealing structure which adopts the following technical scheme:

the utility model provides a breaker cutter shaft seal structure, the arbor is worn to locate in the organism, including first sealing mechanism and second sealing mechanism, first sealing mechanism sets up in the transmission end of arbor, second sealing mechanism sets up in the tail end of arbor, epaxial sealing ring of epaxial sealing ring, oil blanket and bearing are located to first sealing mechanism and second sealing mechanism all including the cover, the opening of oil blanket sets up towards the sealing ring, oil blanket, sealing ring and bearing are arranged in proper order from the center of arbor towards the tip of arbor, and the sealing ring opposite side at arbor both ends is provided with the baffle, the baffle can be dismantled and connect in the organism, be provided with the interval between baffle and the organism.

Preferably, a notch for accommodating an oil seal is formed in the sealing ring, the inner annular surface of the oil seal is attached to the cutter shaft, one side, far away from the sealing ring, of the oil seal is flush with the sealing ring, two coaxial convex rings are formed on the outer annular surface of the sealing ring, the convex rings are located on one side, in the same direction, of the notch of the sealing ring, one convex ring is arranged close to the middle point of the length of the sealing ring, the other convex ring is located at one end, in the length direction, of the sealing ring, a ring groove is formed in the machine body, the convex ring close to the middle point of the sealing ring is embedded in the ring groove, and the two convex rings are clamped in the machine body.

Preferably, the both ends of arbor are fixed with the bearing cap, and the bearing cap indent that is located the transmission end forms the annular, the gomphosis has the oil blanket in the annular, the opening of oil blanket is towards the tail end of arbor.

Preferably, the cover is equipped with the lock sleeve on the arbor, the inside and outside both sides face of lock sleeve is laminated respectively in baffle and arbor, the lock sleeve is located the transmission end of arbor one side coaxial small circle nut that is provided with of lock sleeve near arbor transmission end, the small circle nut cover is located on the arbor.

Preferably, the tail end of the cutter shaft is provided with a sealing sleeve and a spacer bush, the spacer bush is embedded between the cutter shaft and the partition plate, a ring pad is formed on one side of the sealing sleeve, which is close to the tail end of the cutter shaft, the thickness of the ring pad is smaller than that of the sealing sleeve, the ring pad extends towards a bearing at the tail end of the cutter shaft, and a sealing ring and an oil seal sleeve at the tail end of the cutter shaft are arranged on the ring pad.

Preferably, a lock groove is formed in an end portion of the tail end of the cutter shaft, the lock groove is arranged around a central shaft of the cutter shaft, a lock ring is clamped in the lock groove, a spacer and a preload sleeve are arranged between the lock ring and a bearing, the spacer and the preload sleeve are both sleeved on the cutter shaft, one axial side of the spacer is arranged to be attached to the sleeve, the preload sleeve is located on one side, close to the lock ring, of the spacer, a plurality of bolts are evenly bolted on the preload sleeve around the central shaft of the cutter shaft, and threaded ends of the bolts abut against the spacer.

In summary, the present invention includes at least one of the following beneficial effects: materials are isolated through the partition plate, so that the probability of an object entering between the machine body and the cutter shaft is reduced; sealing the cutter shaft and the machine body through the sealing rings and the oil seals in the first sealing mechanism and the second sealing mechanism; meanwhile, the bearing cover close to the end part of the transmission end and the oil seal on the bearing cover seal the outside and the bearing cover, so that the probability of foreign matters entering the cutter shaft is reduced.

Drawings

Fig. 1 is an overall sectional view of the present invention.

Fig. 2 is a schematic structural view of the tail end of the arbor of the present invention.

Fig. 3 is a schematic structural view of the arbor drive end of the present invention.

Description of reference numerals: 1. a cutter shaft; 21. oil sealing; 22. a bearing; 23. a seal ring; 3. a bearing cap; 41. a partition plate; 42. sealing sleeves; 43. a spacer sleeve; 44. a locking sleeve; 5. a small round nut; 6. a locking ring; 70. preloading a shaft sleeve; 71. preloading bolts; 72. a spacer sheet; 9. a body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a crusher cutter shaft sealing structure. Referring to fig. 1, the cutter shaft 1 penetrates through a crusher body 9, a connecting end of the cutter shaft 1 and a motor is called a transmission end, and the other end of the connecting end is called a tail end, and the cutter shaft sealing structure comprises a first sealing mechanism and a second sealing mechanism.

First sealing mechanism sets up in the transmission end of arbor 1, second sealing mechanism sets up in the tail end of arbor 1, first sealing mechanism and second sealing mechanism all locate sealing ring 23, oil blanket 21 and bearing 22 on arbor 1 including the cover, no matter be first sealing mechanism or second sealing mechanism, the opening of oil blanket 21 sets up towards sealing ring 23, oil blanket 21, sealing ring 23 and bearing 22 arrange in proper order from the center of arbor 1 towards the tip of arbor 1, and the opposite side of the two sealing ring 23 of first sealing mechanism and second sealing mechanism all is provided with baffle 41, baffle 41 bolted connection is in organism 9, be provided with the interval between baffle 41 and the organism 9.

The opposite sides of the two partition plates 41 are used for crushing materials, the partition plates 41 firstly separate the crushed materials from the sealing ring 23 of the cutter shaft 1, and most of the materials are blocked by the partition plates 41; the seal rings 23 and the oil seals 21 in the first and second seal mechanisms seal the cutter shaft 1.

The sealing ring 23 is provided with a notch for accommodating the oil seal 21, the inner annular surface of the oil seal 21 is attached to the cutter shaft 1, one side of the oil seal 21, which is far away from the sealing ring 23, is flush with the sealing ring 23, two coaxial convex rings are formed on the outer annular surface of the sealing ring 23, the convex rings are positioned on one side of the notch in the same direction as the sealing ring 23, one convex ring is arranged close to the middle point of the length of the sealing ring 23, the other convex ring is positioned at one end of the length direction of the sealing ring 23, a ring groove is formed in the machine body 9, the convex ring close to the middle point of the sealing ring 23 is embedded in the ring groove, and the two convex rings are clamped in the machine body 9.

The groove formed by the two convex rings on the sealing ring 23 is clamped on the machine body 9, the two convex rings oppositely prolong the foreign matter entering path, and the foreign matters entering between the machine body 9 and the cutter shaft 1 can be effectively reduced.

The both ends of arbor 1 are fixed with bearing 22 and cover, and the bearing 22 that is located the drive end covers the indent and forms the annular groove, the annular inslot gomphosis has oil blanket 21, the opening of oil blanket 21 is towards the tail end of arbor 1, and oil blanket 21 that bearing 22 covered is done first step to arbor 1 and is sealed the foreign matter such as dust that reduces the organism 9 outside especially motor end and get into between arbor 1 and the organism 9.

The cutter shaft 1 is sleeved with a locking sleeve 44, the cutter shaft 1 is tightly installed on the partition plate 41 under the main action of the locking sleeve 44, the inner side surface and the outer side surface of the locking sleeve 44 are respectively attached to the partition plate 41 and the cutter shaft 1, the locking sleeve 44 is located at the transmission end of the cutter shaft 1, a small round nut 5 is coaxially arranged on one side, close to the transmission end of the cutter shaft 1, of the locking sleeve 44, the position of the locking sleeve 44 is fixed again through the small round nut 5, the position fixing effect of the locking sleeve 44 is enhanced, and the small round nut 5 is sleeved on the cutter shaft 1.

The tail end of the cutter shaft 1 is provided with a sealing sleeve 42 and a spacer 43, the spacer 43 is embedded between the cutter shaft 1 and the partition plate 41, a ring pad is formed on one side of the sealing sleeve 42 close to the tail end of the cutter shaft 1, the thickness of the ring pad is smaller than that of the sealing sleeve 42, the ring pad extends towards a bearing 22 at the tail end of the cutter shaft 1, and a sealing ring 23 and an oil seal 21 at the tail end of the cutter shaft 1 are sleeved on the ring pad.

The end part of the tail end of the cutter shaft 1 is provided with a lock groove, the lock groove is arranged around the central axis of the cutter shaft 1, the lock groove is clamped with a lock ring 6, a spacing piece 72 and a preloading shaft sleeve 70 are arranged between the lock ring 6 and a bearing 22, the spacing piece 72 and the preloading shaft sleeve 70 are both sleeved on the cutter shaft 1, one axial side of the spacing piece 72 is attached to the shaft sleeve, the preloading shaft sleeve 70 is positioned on one side of the spacing piece 72 close to the lock ring 6, a plurality of preloading bolts 71 are uniformly bolted on the preloading shaft sleeve 70 around the central axis of the cutter shaft 1, and the threaded ends of the preloading bolts 71 abut against the spacing piece 72.

The function of spacer 72 is to adjust the spacing of bearing 22 and the bearing 22 cover, the adjustment of which is primarily through the preload sleeve 70 to apply a preload force such that spacer 72 is close to tight bearing 22 or slightly against bearing 22.

The tail end of the cutter shaft 1 is in a step shape, the diameter of the end part of the tail end is smaller than that of the middle section of the cutter shaft 1, the locking ring 6 and the preloading shaft sleeve 70 are positioned at the end part of the tail end, and the spacing piece 72, the bearing 22, the sealing ring 23, the oil seal 21, the sealing sleeve 42 and the spacing sleeve 43 are sequentially arranged from the end part of the tail end of the cutter shaft 1 to the middle part of the cutter shaft 1.

The transmission section of arbor is the echelonment, the ladder is the four layers, calls first step, second step, third step and fourth step in proper order towards transmission end tip from arbor middle part, the ladder encircles the arbor center pin and sets up, oil blanket and bearing cap are located the fourth step that is close to transmission end tip, bearing and small circle nut are located the third step that is close to transmission end portion next time, oil blanket and supporting sealing ring that uses are located the second step, the baffle is located first step.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a seal structure of breaker arbor, in organism (9) is worn to locate by arbor (1), its characterized in that: including first sealing mechanism and second sealing mechanism, first sealing mechanism sets up in the transmission end of arbor (1), second sealing mechanism sets up in the tail end of arbor (1), first sealing mechanism and second sealing mechanism all locate sealing ring (23), oil blanket (21) and bearing (22) on arbor (1) including the cover, the opening of oil blanket (21) sets up towards sealing ring (23), oil blanket (21), sealing ring (23) and bearing (22) are arranged in proper order from the center of arbor (1) towards the tip of arbor (1), and sealing ring (23) the opposite side at arbor (1) both ends is provided with baffle (41), baffle (41) can be dismantled and connect in organism (9), be provided with the interval between baffle (41) and organism (9).

2. A sealing structure of a crusher shaft according to claim 1, characterized in that: the cutter shaft is characterized in that a notch used for accommodating the oil seal (21) is formed in the sealing ring (23), the inner ring surface of the oil seal (21) is attached to the cutter shaft (1), one side, far away from the sealing ring (23), of the oil seal (21) is flush with the sealing ring (23), two coaxial convex rings are formed on the outer ring surface of the sealing ring (23), the convex rings are located on one side, in the notch, of the sealing ring (23) in the same direction, one of the convex rings is close to the middle point of the length of the sealing ring (23), the other convex ring is located at one end of the length of the sealing ring (23), a ring groove is formed in the machine body (9), the convex ring close to the middle point of the sealing ring (23) is embedded in the ring groove, and the two convex rings are clamped in the machine body (9).

3. A sealing structure of a crusher shaft according to claim 2, characterized in that: the both ends of arbor (1) are fixed with bearing (22) and cover, and bearing (22) that are located the transmission end are covered and are inwards covered and form the annular groove, the gomphosis has oil blanket (21) in the annular, the opening of oil blanket (21) is towards the tail end of arbor (1).

4. A sealing structure of a crusher arbor according to claim 3, characterized in that: the cover is equipped with lock sleeve (44) on arbor (1), the inside and outside both sides face of lock sleeve (44) pastes respectively in baffle (41) and arbor (1), lock sleeve (44) are located the transmission end of arbor (1) lock sleeve (44) are close to the coaxial small circle nut (5) that is provided with in one side of arbor (1) transmission end, arbor (1) are located in small circle nut (5) cover.

5. A sealing structure of a crusher shaft according to claim 4, characterized in that: the cutter shaft structure is characterized in that a sealing sleeve (42) and a spacer sleeve (43) are arranged at the tail end of the cutter shaft (1), the spacer sleeve (43) is embedded between the cutter shaft (1) and the partition plate (41), a ring pad is formed on one side, close to the tail end of the cutter shaft (1), of the sealing sleeve (42), the thickness of the ring pad is smaller than that of the sealing sleeve (42), the ring pad extends towards a bearing (22) at the tail end of the cutter shaft (1), and a sealing ring (23) and an oil seal (21) at the tail end of the cutter shaft (1) are sleeved on the ring pad.

6. The seal structure of a crusher arbor according to claim 5, wherein: the end part of the tail end of the cutter shaft (1) is provided with a lock groove, the lock groove is arranged around the central shaft of the cutter shaft (1), a lock ring (6) is clamped in the lock groove, a spacer (72) and a preloading shaft sleeve (70) are arranged between the lock ring (6) and a bearing (22), the spacer (72) and the preloading shaft sleeve (70) are both sleeved on the cutter shaft (1), one axial side of the spacer (72) is attached to the shaft sleeve, the preloading shaft sleeve (70) is arranged on one side, close to the lock ring (6), of the spacer (72), a plurality of preloading bolts (71) are uniformly bolted on the preloading shaft sleeve (70) around the central shaft of the cutter shaft (1), and the threaded ends of the preloading bolts (71) abut against the spacer (72).