CN211161764U

CN211161764U - Sand mixing rotor shaft

Info

Publication number: CN211161764U
Application number: CN201921433498.5U
Authority: CN
Inventors: 刘永伟; 刘永军; 刘永利; 刘显臣; 耿学成; 夏淑鹏
Original assignee: Qingdao Tianhui Intelligent Machinery Technology Co ltd
Current assignee: Qingdao Tianhui Intelligent Machinery Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-08-04
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a mulling rotor shaft, including pivot, aligning roller bearing and bearing housing, aligning roller bearing is installed respectively at the inside both ends of bearing housing, the pivot is installed on aligning roller bearing, the upper end of bearing housing has last gland through the bolt fastening, the lower extreme of bearing housing has lower gland through the bolt fastening, the upper end of pivot is worn out the gland and is fixed with the gear through the key round pin, the lower extreme of pivot is worn out down the gland and is fixed with the connecting seat through the key round pin. The utility model discloses a pivot can improve pivot pivoted precision under self-aligning roller bearing's effect, effectively avoids eccentric phenomenon, utilizes seal assembly, can effectively avoid in the sand grain gets into the pivot, utilizes lubricated passageway simultaneously, and the convenience is to the inside lubricating oil that adds of device, reduces the wearing and tearing of pivot, and safe and reliable uses relievedly, can effectively improve the life of pivot.

Description

Sand mixing rotor shaft

Technical Field

The utility model belongs to the technical field of the pivot device, concretely relates to mulling rotor shaft.

Background

A sand mixer is a type of sand making equipment widely used in the foundry industry. The sand mixer utilizes the rotation of the rotating shaft to drive the grinding wheel and the grinding disc to rotate relatively, and materials placed between the grinding wheel and the grinding disc are subjected to the grinding and grinding effects to crush the materials. In addition, the rotating shaft is in a sand environment for a long time, sand and dust easily enter the rotating shaft, the loss of the rotating shaft is accelerated, and the service life of the rotating shaft is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sand mulling rotor shaft to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sand mixing rotor shaft, includes pivot, aligning roller bearing and bearing housing, aligning roller bearing is installed respectively at the inside both ends of bearing housing, the pivot is installed on aligning roller bearing, the upper end of bearing housing has last gland through the bolt fastening, the lower extreme of bearing housing has lower gland through the bolt fastening, the upper end of pivot is worn out the gland and is fixed with the gear through the key round pin, the lower extreme of pivot is worn out down the gland and is fixed with the connecting seat through the key round pin.

Preferably, a round nut is further fixed at the upper end of the rotating shaft and compresses the gear.

Preferably, the lower end of the rotating shaft is further fixed with an anti-falling gland through a bolt, and the anti-falling gland compresses the connecting seat.

Preferably, a bushing is sleeved on a rotating shaft between the two self-aligning roller bearings.

Preferably, the gasket lantern ring and the sealing assembly are sequentially sleeved between the lower gland and the rotating shaft from inside to outside, the gasket lantern ring abuts against the bottom end of the self-aligning roller bearing, and the sealing assembly comprises a sealing ring with an auxiliary lip and a sealing ring for rotation.

Preferably, a lubricating channel is arranged in the side wall of one side of the bearing sleeve, through holes communicated with the lubricating channel are formed in the upper pressing cover and the lower pressing cover, and a plug is arranged in the through holes.

The utility model discloses a technological effect and advantage: the pivot can improve pivot pivoted precision under self-aligning roller bearing's effect, effectively avoids eccentric phenomenon, utilizes seal assembly, can effectively avoid in the sand grain gets into the pivot, simultaneously, utilizes lubricated passageway, conveniently to the inside lubricating oil that adds of device, reduces the wearing and tearing of pivot, and safe and reliable uses relievedly, can effectively improve the life of pivot.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1 round nut, 2 rotating shafts, 3 key pins, 4 upper gland, 5 self-aligning roller bearings, 6 bearing sleeves, 7 lower gland, 8 sealing components, 9 gasket lantern rings, 10 connecting seats, 11 anti-dropping gland, 12 plug, 13 bush, 14 gear and 15 lubricating channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a sand mixing rotor shaft, including pivot 2, aligning roller bearing 5 and bearing housing 6, aligning roller bearing 5 is installed respectively at the inside both ends of bearing housing 6, pivot 2 is installed on aligning roller bearing 5, the upper end of bearing housing 6 is fixed with upper gland 4 through the bolt, the lower extreme of bearing housing 6 is fixed with lower gland 7 through the bolt, upper gland 4 is worn out and gear 14 is fixed with through key pin 3 to the upper end of pivot 2, gland 7 is worn out and is fixed with connecting seat 10 through key pin 3 to the lower extreme of pivot 2.

The upper end of the rotating shaft 2 is also fixed with a round nut 1, and the round nut 1 compresses the gear 14. The round nut 1 is also sleeved with a backstop gasket to prevent the gear 14 from falling off.

The lower extreme of pivot 2 still is fixed with anticreep gland 11 through the bolt, anticreep gland 11 compresses tightly connecting seat 10, avoids connecting seat 10 to drop from pivot 2.

And a bushing 13 is sleeved on the rotating shaft 2 between the two self-aligning roller bearings 5. The bush 13 can support the aligning roller bearings 5 at both ends, and stabilize the aligning roller bearings 5.

The utility model discloses a self-aligning roller bearing, including lower gland 7 and pivot 2, the cover is equipped with gasket lantern ring 9 and seal assembly 8 from inside to outside in proper order between lower gland 7 and the pivot, gasket lantern ring 9 supports tight self-aligning roller bearing 5 bottoms, seal assembly 8 is including taking vice lip sealing washer and rotatory sealing washer of using. The sealing performance between the lower gland 7 and the gasket collar 9 is improved under the protection of the sealing assembly 8, and sand grains are prevented from entering.

And a lubricating channel 15 is arranged in the side wall of one side of the bearing sleeve 6, through holes communicated with the lubricating channel 15 are arranged on the upper gland 4 and the lower gland 7, and a plug 12 is arranged in the through holes. The lubricating oil can be pressed between the rotating shaft 2 and the bearing sleeve 6 by a hydraulic station to lubricate the aligning roller bearing 5.

Specifically, during the use, pivot 2 can improve 2 pivoted precisions of pivot under self-aligning roller bearing 5's effect, effectively avoids eccentric phenomenon, utilizes seal assembly 8, can effectively avoid in the sand grain gets into pivot 2, simultaneously, utilizes lubricated passageway 15, conveniently to the inside lubricating oil that adds of device, reduces the wearing and tearing of pivot 2, and safe and reliable uses and puts one's mind at rest, can effectively improve pivot 2's life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a sand mixing rotor shaft, includes pivot (2), self-aligning roller bearing (5) and bearing housing (6), its characterized in that: self-aligning roller bearing (5) are installed respectively to the inside both ends of bearing housing (6), install on self-aligning roller bearing (5) pivot (2), the upper end of bearing housing (6) has last gland (4) through the bolt fastening, the lower extreme of bearing housing (6) has lower gland (7) through the bolt fastening, gland (4) are worn out and gear (14) are fixed with through key round pin (3) in the upper end of pivot (2), gland (7) are worn out down and are fixed with connecting seat (10) through key round pin (3) to the lower extreme of pivot (2).

2. The sand mulling rotor shaft as recited in claim 1, wherein: the upper end of the rotating shaft (2) is further fixed with a round nut (1), and the round nut (1) compresses the gear (14).

3. The sand mulling rotor shaft as recited in claim 1, wherein: the lower end of the rotating shaft (2) is further fixed with an anti-falling gland (11) through a bolt, and the anti-falling gland (11) compresses the connecting seat (10).

4. The sand mulling rotor shaft as recited in claim 1, wherein: and a bushing (13) is sleeved on the rotating shaft (2) between the two self-aligning roller bearings (5).

5. The sand mulling rotor shaft as recited in claim 1, wherein: the utility model discloses a self-aligning roller bearing, including gland (7) and pivot (2), the cover is equipped with liner lantern ring (9) and seal assembly (8) from inside to outside in proper order between lower gland (7) and pivot (2), liner lantern ring (9) support tight self-aligning roller bearing (5) bottom, seal assembly (8) are including taking vice lip sealing washer and rotatory sealing washer of using.

6. The sand mulling rotor shaft as recited in claim 1, wherein: and a lubricating channel (15) is arranged in the side wall of one side of the bearing sleeve (6), a through hole communicated with the lubricating channel (15) is formed in the upper gland (4) and the lower gland (7), and a plug (12) is arranged in the through hole.