CN218804192U

CN218804192U - Cover plate sealing structure of squeezer

Info

Publication number: CN218804192U
Application number: CN202222736167.7U
Authority: CN
Inventors: 罗贵刚; 邓晓农; 王典军; 何钢强; 李广
Original assignee: Yibin Grace Group Co Ltd
Current assignee: Yibin Grace Group Co Ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-07
Anticipated expiration: 2032-10-18

Abstract

The utility model relates to the technical field of mechanical sealing structures, in particular to a cover plate sealing structure of a squeezer, which comprises two sets of sealing components, wherein the two sets of sealing components are respectively arranged at two ends of a pre-crushing roller of the squeezer; the two ends of the roller cavity shell of the pre-crushing roller are respectively provided with a cover plate assembly, the cover plate assembly comprises a fixed cover plate fixedly connected with the roller cavity shell and a movable cover plate detachably connected with the roller cavity shell, the sealing assembly comprises a first sealing semicircular ring and a second sealing semicircular ring, the first sealing semicircular ring and the second sealing semicircular ring are fixedly mounted on the fixed cover plate correspondingly, and the first sealing semicircular ring and the second sealing semicircular ring are matched with each other and used for sealing a gap between the cover plate assembly and a roller shaft. This technical scheme has made things convenient for the daily inspection and the maintenance of roller and roller tooth through setting up the apron subassembly, on this basis, has solved the hourglass material problem through setting up seal assembly, and seal assembly structural design is ingenious, and perfect adaptation has lapped movable cover's in the subassembly detachable demand.

Description

Cover plate sealing structure of squeezer

Technical Field

The utility model relates to a mechanical seal structure technical field especially relates to a apron seal structure of squeezer.

Background

In the production of viscose, pulp is accomplished the flooding process through the steeping vat after, and is carried to the squeezer through the thick liquid pump, squeezes the roller and squeezes unnecessary alkali lye out around the squeezer, has the precomminution device on the squeezer and carries out precomminution with the alkali cellulose after squeezing, contains the precomminution roller in the precomminution device, for chinese patent document that publication number is CN211222157U, has disclosed a squeeze the roller suitable for alkali cellulose squeezer, including the roll body binder, its characterized in that: the roller body connector comprises a main shaft, a roller body which is of a hollow cylindrical structure and sleeved on the main shaft through a plurality of radial plates which are uniformly distributed along the length direction of the main shaft, and a plurality of studs which surround the roller body and are fixedly connected to the roller body in an axially uniform distribution mode, and a plurality of stud through holes are formed in the length direction of each stud in a uniformly distributed mode; the outer circle of the vertical rib of the roller body combining piece is sleeved with a ring rib combining piece in an interference fit mode, the outer cylindrical surface of the ring rib combining piece is sleeved with a cylindrical mesh plate in an interference fit mode, the left side and the right side of the roller body combining piece are respectively fixedly connected with two end flange choke plugs, and the end flange choke plugs are provided with backflow holes communicated with an intercommunicating backflow cavity formed by the space between every two adjacent vertical ribs and the ring rib combining piece. The structure of the press roll has the following defects: the structural design of the pre-crushing roller is inconvenient to disassemble, and the damage and the breakage of the pre-crushing roller teeth and the abrasion of the roller shaft are difficult to realize periodic inspection, so that the pressing roller is not maintained periodically, the pressing effect is influenced, and even the situation that the pressing roller breaks down during working can occur.

For the defects, the cover plates are arranged at the two ends of the press roll in the prior art, so that the cover plates are opened periodically to observe the internal condition of the press roll, and therefore, a new problem occurs, a large gap exists between the cover plates and the roll, a serious material leakage phenomenon exists, material waste is caused, and the surface of equipment is polluted.

Disclosure of Invention

The utility model discloses to above-mentioned prior art not enough, provided a apron seal structure of squeezer, increase seal structure between squeezer apron and pre-crushing roller, can improve the leakproofness of squeezer, prevent to leak alkali cellulose between squeezer during operation apron and the pre-crushing roller space, concrete scheme is as follows:

a cover plate sealing structure of a squeezer comprises two sets of sealing assemblies, wherein the two sets of sealing assemblies are respectively arranged at two ends of a pre-crushing roller of the squeezer; the pre-crushing roller comprises a roller cavity shell, a roller shaft penetrates through the axis of the roller cavity shell, and roller teeth are distributed on the roller shaft and are positioned in the roller cavity shell; the two ends of the roller cavity shell are respectively provided with a cover plate assembly, the cover plate assembly comprises a fixed cover plate fixedly connected with the roller cavity shell and a movable cover plate detachably connected with the roller cavity shell, a first semicircular notch is formed in the fixed cover plate, a second semicircular notch is formed in the movable cover plate, and the first semicircular notch and the second semicircular notch are spliced to form an avoiding perforation of the roller shaft; the sealing assembly comprises a first sealing semicircular ring fixedly arranged on the fixed cover plate corresponding to the first semicircular notch and a second sealing semicircular ring fixedly arranged on the movable cover plate corresponding to the second semicircular notch, and the first sealing semicircular ring and the second sealing semicircular ring are matched with each other and used for sealing a gap between the cover plate assembly and the roller shaft.

Preferably, the first sealing semicircular ring and the second sealing semicircular ring are identical in structure and both comprise a semicircular ring body, and a sealing structure is arranged on the inner side of the semicircular ring body.

Preferably, a groove is formed in the semi-circular ring body, and the sealing structure is a packing sealing strip arranged in the groove.

Preferably, the sealing assembly further comprises a connecting piece, a groove is formed in the semi-annular body, and the sealing structure is a packing sealing strip arranged in the groove.

Preferably, elastic sealing strips are respectively arranged between the movable cover plate and the fixed cover plate and between the movable cover plate and the roller cavity shell.

Preferably, the semi-circular ring body is made of a PVC plate.

The utility model has the advantages that:

the cover plate assembly of the technical scheme comprises the fixed cover plate and the movable cover plate, the internal condition of the roller cavity shell can be observed only by disassembling the movable cover plate, the daily inspection and maintenance of the roller shaft and the roller teeth are facilitated, and the reliable guarantee is provided for the smooth operation of the squeezing work under the condition of ensuring the squeezing effect; further, to the clearance problem between apron and the roller, this technical scheme has solved the hourglass material problem through setting up seal assembly, and seal assembly structural design is ingenious, and the design of its first sealed semicircle ring of and the sealed semicircle ring of second has perfectly adapted to apron subassembly in removable cover's the demand of dismantling.

Drawings

FIG. 1 is a schematic view of a press configuration;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is a schematic structural view of a cover plate assembly;

FIG. 5 is a schematic view of the mounting structure of the seal assembly;

FIG. 6 is a schematic cross-sectional structural view of the first sealing semi-ring or the second sealing semi-ring (no sealing structure is provided);

in the figure:

1. pre-crushing rollers; 1.1, a roller cavity shell; 1.2, a roll shaft; 1.3, roller teeth; 2. a cover plate assembly; 2.1, fixing a cover plate; 2.2, a first semicircular notch; 2.3, a movable cover plate; 2.4, a second semicircular notch; 2.5, avoiding perforation; 3. an elastic sealing strip; 4. a seal assembly; 4.1, a first sealing semicircular ring; 4.2, a second sealing semicircular ring; 4.3, connecting pieces; 4.01, a semicircular ring body; 4.02, sealing body; 4.03, grooves; 4.04, connecting the lug plates; 4.05, connecting the holes.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the attached drawings of the present invention will be combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention.

Accordingly, the following detailed description of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Example 1

The embodiment discloses a apron seal structure of squeezer, as a utility model a preferred embodiment, as shown in fig. 1, including two sets of seal assembly 4, two sets of seal assembly 4 set up respectively in the crushing roller 1 both ends in advance of squeezer. The pre-crushing roller 1 comprises a roller cavity shell 1.1, a roller shaft 1.2 penetrates through the axis of the roller cavity shell 1.1, roller teeth 1.3 are distributed on the roller shaft 1.2, and the roller teeth 1.3 are positioned in the roller cavity shell 1.1; roller chamber shell 1.1's both ends are provided with apron subassembly 2 respectively, and apron subassembly 2 includes that the removable cover 2.3 of being connected can be dismantled with roller chamber shell 1.1 fixed connection's fixed cover 2.1 and with roller chamber shell 1.1, is provided with first semicircle breach 2.2 on the fixed cover 2.1, is provided with second semicircle breach 2.4 on the removable cover 2.3, and first semicircle breach 2.2 and the concatenation of second semicircle breach 2.4 constitute dodging perforation 2.5 of roller 1.2, roller 1.2 passes from dodging perforation 2.5 promptly. Sealing component 4 is including corresponding first semicircle breach 2.2 fixed mounting in the sealed semicircle ring 4.2 of the second on removable cover 2.3 of first sealed semicircle ring 4.1 on fixed cover 2.1 and corresponding second semicircle breach 2.4 fixed mounting, and first sealed semicircle ring 4.1 is mutually supported with the sealed semicircle ring 4.2 of second for seal the clearance between apron subassembly 2 and the roller 1.2.

Based on the structure, in practical application, the sealing component 4 can be fixed on the cover plate component 2 in a welding mode, generally, the relative position between the roll shaft 1.2 and the fixed cover plate 2.1 is unchanged, and the first sealing semicircular ring 4.1 on the fixed cover plate 2.1 is tightly attached to the roll shaft 1.2, so that sealing in a semicircular range of the roll shaft 1.2 is realized; removable cover 2.3 is fixed mounting when installing in roller chamber shell 1.1, for the convenience of dismantling, accessible bolted connection or set up the mode of exerting pressure the lock (the structure is not limited, mainly play with dodge gate detachable fix on roller chamber shell 1.1 can) install removable cover 2.3 on roller chamber shell 1.1, this moment, the sealed semicircle ring of second 4.2 on the removable cover 2.3 hugs closely roller 1.2, the realization is sealed to another semicircle scope of roller 1.2. When the condition in the roller cavity shell 1.1 needs to be checked, the movable cover plate 2.3 can be detached, and the second sealing semicircular ring 4.2 and the movable cover plate 2.3 leave the roller shaft 1.2 together.

In conclusion, the cover plate assembly 2 in the technical scheme comprises the fixed cover plate 2.1 and the movable cover plate 2.3, and the internal condition of the roller cavity shell 1.1 can be observed only by disassembling the movable cover plate 2.3, so that the daily inspection and maintenance of the roller shaft 1.2 and the roller teeth 1.3 are facilitated, and the reliable guarantee is provided for the smooth pressing operation under the condition of ensuring the pressing effect; further, to the clearance problem between apron and the roller 1.2, this technical scheme has solved the hourglass material problem through setting up seal assembly 4, and seal assembly 4 structural design is ingenious, and its first sealed semicircle ring 4.1 and the sealed semicircle ring 4.2's of second design, perfect adaptation apron 2.3's in the apron subassembly 2 can dismantle the demand.

Example 2

The embodiment discloses a apron seal structure of squeezer, as a preferred embodiment of utility model, in embodiment 1 promptly, first sealed semicircle ring 4.1 is the same with second sealed semicircle ring 4.2 structure, and all includes semicircle ring body 4.01, and the inboard of semicircle ring body 4.01 is provided with seal 4.02, and based on this, seal assembly 4's sealing function promptly passes through seal 4.02 realizes, and semicircle ring body 4.01 then is used for retraining seal 4.02, also is regarded as the structure of borrowing of seal 4.02 simultaneously, so-called "borrowing", exerts pressure to seal 4.02 through semicircle ring body 4.01 promptly for seal 4.02 closely laminates with roller 1.2, in order to reach sealed effect.

Furthermore, a groove 4.03 is arranged inside the semicircular ring body 4.01, and the sealing body 4.02 is a packing sealing strip arranged in the groove 4.03. Wherein the grooves 4.03 improve the confinement effect of the seal 4.02.

Furthermore, two ends of the semicircular ring body 4.01 are respectively provided with a connecting lug 4.04, and the connecting lug 4.04 is provided with a connecting hole 4.05 for arranging a connecting piece 4.3. In the actual application, adopt two connecting pieces 4.3 to pass connecting hole 4.05 on first sealed semicircle ring 4.1 and the sealed semicircle ring 4.2 of second simultaneously in seal assembly 4's both sides respectively, under two connecting pieces 4.3's effect, first sealed semicircle ring 4.1 and the sealed semicircle ring 4.2 of second borrow power each other, improve first sealed semicircle ring 4.1 and the sealed semicircle ring 4.2 of second and roller 1.2 laminating degree, in order to ensure sealed effect. Further, the connecting element 4.3 may be a bolt and a nut.

Furthermore, elastic sealing strips 3 are arranged between the movable cover plate 2.3 and the fixed cover plate 2.1 and between the movable cover plate 2.3 and the roller cavity shell 1.1, so that the sealing performance between the cover plate assembly 2 and the roller cavity shell 1.1 is improved.

Furthermore, the semicircular ring body 4.01 is made of a PVC plate which is low in cost and easy to process, and therefore the sealing component 4 and the cover plate component 2 can be connected through plastic welding.

Claims

1. The utility model provides a apron seal structure of squeezer which characterized in that: the device comprises two sets of sealing assemblies (4), wherein the two sets of sealing assemblies (4) are respectively arranged at two ends of a pre-crushing roller (1) of a squeezer; the pre-crushing roller (1) comprises a roller cavity shell (1.1), a roller shaft (1.2) penetrates through the axis of the roller cavity shell (1.1), roller teeth (1.3) are distributed on the roller shaft (1.2), and the roller teeth (1.3) are positioned in the roller cavity shell (1.1); the two ends of the roller cavity shell (1.1) are respectively provided with a cover plate component (2), the cover plate component (2) comprises a fixed cover plate (2.1) fixedly connected with the roller cavity shell (1.1) and a movable cover plate (2.3) detachably connected with the roller cavity shell (1.1), a first semicircular notch (2.2) is formed in the fixed cover plate (2.1), a second semicircular notch (2.4) is formed in the movable cover plate (2.3), and the first semicircular notch (2.2) and the second semicircular notch (2.4) are spliced to form an avoiding through hole (2.5) of the roller shaft (1.2);

seal assembly (4) including correspond first semicircle breach (2.2) fixed mounting first sealed semicircle ring (4.1) on fixed apron (2.1) and correspond second semicircle breach (2.4) fixed mounting second sealed semicircle ring (4.2) on removable cover (2.3), first sealed semicircle ring (4.1) and second sealed semicircle ring (4.2) are mutually supported for seal the clearance between apron subassembly (2) and roller (1.2).

2. The cover plate sealing structure of a press as set forth in claim 1, wherein: the first sealing semicircular ring (4.1) and the second sealing semicircular ring (4.2) are identical in structure and both comprise semicircular ring bodies (4.01), and sealing bodies (4.02) are arranged on the inner sides of the semicircular ring bodies (4.01).

3. The cover plate sealing structure of a press as set forth in claim 2, characterized in that: the sealing assembly (4) further comprises a connecting piece (4.3), a groove (4.03) is formed in the semi-annular body (4.01), and the sealing body (4.02) is a packing sealing strip arranged in the groove (4.03).

4. The cover plate sealing structure of a press as set forth in claim 2, characterized in that: two ends of the semi-circular ring body (4.01) are respectively provided with a connecting lug piece (4.04), and the connecting lug piece (4.04) is provided with a connecting hole (4.05) for arranging a connecting piece (4.3).

5. The cover plate sealing structure of a press as set forth in claim 2, characterized in that: elastic sealing strips (3) are respectively arranged between the movable cover plate (2.3) and the fixed cover plate (2.1) and between the movable cover plate (2.3) and the roller cavity shell (1.1).

6. The cover plate sealing structure of a press as set forth in claim 2, characterized in that: the semi-circular ring body (4.01) is made of a PVC plate.