CN216307017U

CN216307017U - Blanking rotating device

Info

Publication number: CN216307017U
Application number: CN202122821628.6U
Authority: CN
Inventors: 胡兆祥; 徐光龙
Original assignee: Shanghai Yibo Mechanical And Electrical Equipment Co ltd
Current assignee: Shanghai Yibo Mechanical And Electrical Equipment Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-15
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a blanking slewing device which comprises an upper flange, a lower flange, a slewing bearing, a transition flange and a middle flange, wherein the transition flange and the middle flange are arranged up and down, the upper end face of the transition flange is fixed with the upper flange, a gap is formed between the outer side face of the transition flange and the inner side face of the inner bearing, a gap is formed between the upper end face of the middle flange and the lower end face of the transition flange, a plurality of circles of annular grooves which correspond up and down are formed in the upper end face of the middle flange and the lower end face of the transition flange, sealing retaining rings are arranged in the annular grooves which correspond up and down, the lower end face of the middle flange is fixed with the lower flange, the lower end face of the middle flange is also provided with an outward extending face, and the lower end face of the inner bearing is fixed with the extending face. Through setting up transition flange and middle flange and set up sealed fender ring in the clearance of both opposite faces, play sealed effect.

Description

Blanking rotating device

Technical Field

The utility model belongs to ship unloaders, and particularly relates to a blanking slewing device.

Background

The relative rotation between the two pipes is realized by arranging a slewing bearing between the material conveying pipe and the material discharging pipe of the ship unloader. However, materials such as cement conveyed in the pipe can generate fine particles such as dust and the like, so that the fine particles enter the gap of the slewing bearing, and the slewing bearing is often easy to fail or damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a blanking slewing device which can play a role in sealing and avoid the failure and the damage of a slewing bearing.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the blanking slewing device comprises an upper flange of a conveying pipe, a lower flange of a blanking pipe, and a slewing bearing arranged between the upper flange and the lower flange, wherein the slewing bearing comprises an inner bearing and an outer bearing, the outer bearing is fixed with the upper flange, a plurality of balls are arranged between the inner bearing and the outer bearing, the blanking slewing bearing also comprises a transition flange and an intermediate flange which are arranged up and down, the upper end surface of the transition flange is fixed with the upper flange, a gap is arranged between the outer side surface of the transition flange and the inner side surface of the inner bearing, a gap is arranged between the upper end surface of the intermediate flange and the lower end surface of the transition flange, a plurality of circles of annular grooves which correspond up and down are arranged on the upper end surface of the intermediate flange and the lower end surface of the transition flange, sealing retaining rings are arranged in the annular grooves which correspond up and down, the lower end surface of the intermediate flange is fixed with the lower flange, the lower end surface of the intermediate flange is also provided with an outward extending surface, and the lower end surface of the inner bearing is fixed with the extending surface.

The inner side surface of the transition flange is also provided with a check ring extending downwards, and a gap is reserved between the outer side surface of the check ring and the inner side surface of the middle flange.

The corresponding upper and lower annular grooves have two circles with the same center and different radiuses.

The sealing baffle ring is made of copper material.

And a pressure injection type oil injection pipe is also arranged on the upper flange, and a gap between the outer side surface of the transition flange and the inner side surface of the inner support is communicated with the pressure injection type oil injection pipe.

The blanking slewing device has the following advantages that:

1. the transition flange and the middle flange are arranged, and a sealing baffle ring is arranged in a gap between the opposite surfaces of the transition flange and the middle flange, so that a sealing effect is achieved;

2. the plurality of groups of sealing baffle rings can also form a structure similar to labyrinth sealing so as to enhance the sealing effect;

3. the inner side surface of the transition flange is also provided with a retaining ring extending downwards to further play a role in sealing;

4. through pressing notes formula notes oil pipe when lubricating slewing bearing, can also play the oil seal effect to gaps such as transition flange and inner support, intermediate flange and transition flange.

Drawings

The following detailed description of the present invention is made with reference to the accompanying drawings and the embodiments:

FIG. 1 is a schematic cross-sectional view of a blanking slewing device of the present invention;

FIG. 2 is an enlarged schematic view of section A of FIG. 1;

FIG. 3 is a perspective view of a transition flange of the present invention;

fig. 4 is a perspective view of an intermediate flange of the present invention.

Detailed Description

As shown in fig. 1-4, the blanking slewing device of the present invention also includes, as in the prior art, an upper flange 1 of a feed delivery pipe, a lower flange 2 of the feed delivery pipe, and a slewing bearing 3 disposed between the upper flange 1 and the lower flange 2, wherein the slewing bearing 3 includes inner and

outer bearings

31, 32, the outer bearing 32 is fixed to the upper flange 1 by a first bolt 4a, a gap exists between the upper end surface of the inner bearing 31 and the lower end surface of the upper flange 1, and a plurality of balls 33 are disposed between the inner and outer bearings 32, so that the inner and outer bearings 32 can rotate relative to each other, that is, the upper flange 1 forming the feed delivery pipe can rotate relative to the lower flange 2 of the feed delivery pipe. Different from the prior art, the sealing device also comprises a transition flange 5 and a middle flange 6 which are arranged up and down, the upper end surface of the transition flange 5 is fixed with the upper flange 1 through a second bolt 4b, a gap is arranged between the outer side surface of the transition flange 5 and the inner side surface of an inner support 31, a gap is arranged between the upper end surface of the middle flange 6 and the lower end surface of the transition flange 5, a plurality of circles of ring grooves 7 which correspond up and down are arranged on the upper end surface of the middle flange 6 and the lower end surface of the transition flange 5, the corresponding ring grooves 7 are combined to form a rectangular groove, and matched sealing baffle rings 8 are arranged in the groove, as shown in figures 2-4, usually, the corresponding ring grooves 7 up and down can adopt two circles which are concentric with each other and have different radiuses, the sealing baffle rings 8 also adopt two corresponding inner and outer circles, namely, a better sealing effect is achieved, and the sealing baffle rings 8 can adopt copper materials with rectangular cross sections, are soft and are not easy to wear, a labyrinth-like seal can be constructed and the gap further reduced. The lower end face of the intermediate flange 6 is fixed with the lower flange 2 through the third bolts 4c, the lower end face of the intermediate flange 6 is also provided with an outward extending face 61, and the lower end face of the inner support 31 is fixed with the extending face 61 through the fourth bolts 4 d. Thus, the inner support 31 is fixed to the lower flange 2, and the upper flange 1 is rotatable via the outer support 32.

The inner side surface of the transition flange 5 is further provided with a retaining ring 51 extending downward, a gap is formed between the outer side surface of the retaining ring 51 and the inner side surface of the intermediate flange 6, and the gap, a gap between the lower end surface of the transition flange 5 and the upper end surface of the intermediate flange 6, a gap between the outer side surface of the transition flange 5 and the inner side surface of the inner support 31 and the like form a labyrinth seal structure.

In addition, the upper flange 1 is also provided with a pressure injection type oil injection pipe 9, and a gap between the outer side surface of the transition flange 5 and the inner side surface of the inner support 31 is communicated with the pressure injection type oil injection pipe, so that the gap forming the labyrinth seal structure can be subjected to oil seal through oil injection, and the seal effect is better.

However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.

Claims

1. The utility model provides a unloading slewer, includes the last flange of conveying pipeline, the lower flange of unloading pipe, locates the slewing bearing between last flange and the lower flange, and slewing bearing includes inside and outside support, and outside support is fixed mutually with last flange, has several ball, its characterized in that between inside and outside support: the flange structure is characterized by further comprising a transition flange and a middle flange which are arranged from top to bottom, the upper end face of the transition flange is fixed with the upper flange, a gap exists between the outer side face of the transition flange and the inner side face of the inner support, a gap exists between the upper end face of the middle flange and the lower end face of the transition flange, a plurality of circles of annular grooves which correspond from top to bottom are formed in the upper end face of the middle flange and the lower end face of the transition flange, sealing retaining rings are arranged in the annular grooves which correspond from top to bottom, the lower end face of the middle flange is fixed with the lower flange, the lower end face of the middle flange is further provided with an outward extending face, and the lower end face of the inner support is fixed with the extending face.

2. The blanking slewing device according to claim 1, characterized in that: the inner side surface of the transition flange is also provided with a check ring extending downwards, and a gap is reserved between the outer side surface of the check ring and the inner side surface of the middle flange.

3. The blanking slewing device according to claim 1, characterized in that: the corresponding upper and lower annular grooves have two circles with the same center and different radiuses.

4. A blanking slewing device according to claim 1 or 3, characterized in that: the sealing baffle ring is made of copper material.

5. The blanking slewing device according to claim 1, characterized in that: and a pressure injection type oil injection pipe is also arranged on the upper flange, and a gap between the outer side surface of the transition flange and the inner side surface of the inner support is communicated with the pressure injection type oil injection pipe.