CN212892332U

CN212892332U - Self-lubricating bearing mechanism for screw shaft connection of screw conveyor

Info

Publication number: CN212892332U
Application number: CN202021921763.7U
Authority: CN
Inventors: 叶财庆
Original assignee: Sichuan Yiyou Xin Machinery Equipment Co ltd
Current assignee: Sichuan Yiyou Xin Machinery Equipment Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-04-06
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a self-lubricating bearing mechanism for screw shaft connection of a screw conveyor, which comprises 2 adjacent sections of conveyor shells and 2 adjacent screw shafts, wherein the screw shafts are positioned in the conveyor shells and also comprise a connecting shaft, a bearing sleeve seat and a self-lubricating bearing assembly; the bearing sleeve seat is arranged between 2 sections of the conveyor shell and is connected to 2 sections of the conveyor shell; the coupling shaft penetrates through the bearing sleeve seat; the self-lubricating bearing assembly is sleeved on the connecting shaft and is fixed on the bearing sleeve seat; the coupling shaft is rotationally connected with the self-lubricating bearing assembly; one end of the coupling shaft is fixed with 1 screw shaft, and the other end of the coupling shaft is fixed with the other 1 screw shafts. The utility model discloses need not regular filling lubricating oil, can avoid the dead risk of bearing card, can prolong draw bail's life, reduce the frequency of maintenance change.

Description

Self-lubricating bearing mechanism for screw shaft connection of screw conveyor

Technical Field

The utility model relates to a screw conveyer technical field particularly, relates to a self-lubricating bearing mechanism for screw conveyer screw shaft hookup.

Background

The screw conveyor is mainly used for conveying powder, granular and blocky materials, and pushes the materials to a discharge port from a feed port through the rotation of an internal shaft and blades. However, in some occasions, long-distance conveying is needed, so that the equipment is lengthened, the rotating shaft is too long, the processing is inconvenient, and after the rotating shaft is too long, the shaft is bent due to self weight, the deflection is too large, and great influence is generated on the rotation. In this case, the device and the shaft need to be made in a shortened and segmented manner, and the flange and the intermediate coupling mechanism are used for coupling.

The current patent that has disclosed is "a novel quick screw conveyer", and the chinese utility model patent of publication No. CN209922249U, this patent is through setting up second bearing and core pipe, adds the strong point in the middle part of main shaft in other words, can increase substantially screw conveyer's rotational speed and length to adapt to the transport demand of different length.

However, the second bearing in the above patent needs to be filled with lubricating oil regularly and is easy to be damaged, and if powder materials are conveyed, dust is easy to be stuck after entering the bearing, which brings much trouble to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a self-lubricating bearing mechanism for screw conveyer screw axis hookup, it designs to the self-lubricating bearing mechanism who is used for the screw conveyer screw axis to need not regular filling lubricating oil, avoid the dead risk of bearing card, can prolong draw bail's life, reduce the frequency of maintenance change.

The embodiment of the utility model discloses a realize through following technical scheme:

a self-lubricating bearing mechanism for screw shaft connection of a screw conveyor comprises 2 adjacent sections of conveyor shells and 2 adjacent screw shafts, wherein the screw shafts are positioned in the conveyor shells, and the self-lubricating bearing mechanism also comprises a connecting shaft, a bearing sleeve seat and a self-lubricating bearing assembly; the bearing sleeve seat is arranged between 2 sections of the conveyor shell and is connected to 2 sections of the conveyor shell; the coupling shaft penetrates through the bearing sleeve seat; the self-lubricating bearing assembly is sleeved on the connecting shaft and is fixed on the bearing sleeve seat; the coupling shaft is rotationally connected with the self-lubricating bearing assembly; one end of the coupling shaft is fixed with 1 screw shaft, and the other end of the coupling shaft is fixed with the other 1 screw shafts.

In an embodiment of the present invention, the bearing sleeve seat is configured with a containing cavity for installing a self-lubricating bearing assembly, the self-lubricating bearing assembly is configured with a plurality of positioning portions, the containing cavity is configured with a positioning pin inserted into the positioning portions, and the positioning pins are arranged around the axis of the containing cavity.

In an embodiment of the present invention, the self-lubricating bearing assembly includes a detachable shaft sleeve and a self-lubricating bearing, the detachable shaft sleeve is disposed in the accommodating cavity, and the positioning portion is disposed in the detachable shaft sleeve; the self-lubricating bearing is in interference fit with the detachable shaft sleeve, the self-lubricating bearing sleeve is arranged on the connecting shaft, and the self-lubricating bearing is in transition fit with the connecting shaft.

In an embodiment of the present invention, the self-lubricating bearing is configured as a graphite copper bush bearing.

In an embodiment of the present invention, the end portion of the spiral shaft is provided with a shaft tube, the end portion of the coupling shaft is inserted into the shaft tube, and the coupling shaft is coupled with the spiral shaft by a key.

In an embodiment of the present invention, the shaft sleeve is disposed in the shaft tube in an interference fit manner, the end portion of the coupling shaft is inserted into the shaft sleeve, and the end portion of the coupling shaft is connected with the shaft sleeve by a key.

The utility model discloses an in the embodiment, the bearing housing seat includes the ring flange and is fixed in the copper sheathing seat in this ring flange centre of a circle, and this self-lubricating bearing is located to this copper sheathing seat cover, and this ring flange utilizes locking bolt to couple in this conveyer casing of 2 sections.

The utility model discloses an in the embodiment, copper sheathing seat one end configuration is small-bore end, and the internal diameter of this small-bore end is less than self-lubricating bearing external diameter, and the internal diameter of this small-bore end is greater than self-lubricating bearing internal diameter.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

the embodiment of the utility model provides a through setting up the coupling shaft, self-lubricating bearing assembly, the bearing housing seat, utilize the annular flange hookup adjacent 2 sections conveyer casings of bearing housing seat, utilize the coupling shaft to connect adjacent 2 screw axes, and this coupling shaft wears to locate this bearing housing seat, self-lubricating bearing assembly is including cup jointing in the self-lubricating bearing of this coupling shaft, should utilize self-lubricating bearing to realize that the rotation between coupling shaft and the bearing housing seat is connected, compare with prior art, because self-lubricating bearing self has lubricating function, the utility model discloses need not regularly filling lubricating oil, the easy dead risk of card when having avoided using antifriction bearing can prolong coupling structure's life, has reduced the frequency of maintenance change.

The utility model discloses a setting is including the self-lubricating bearing subassembly that can dismantle bearing housing and self-lubricating bearing, sets up the holding chamber in the copper sheathing seat, sets up a plurality of locating pins in the holding chamber, and a plurality of these locating pins encircle this holding chamber axis and set up, utilizes the locating pin to realize the location that can dismantle the bearing housing, guarantees the axis collineation of the axis that can dismantle the bearing housing and copper sheathing seat. And the utility model discloses the bearing housing can be dismantled with the copper sheathing seat to the utilization and be connected, and the self-lubricating bearing's of being convenient for quick replacement reduces the dismouting degree of difficulty of self-lubricating bearing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view of the middle bearing sleeve seat of the present invention.

Icon: 1-conveyor shell, 2-screw shaft, 21-shaft tube, 22-shaft sleeve, 3-coupling shaft, 4-bearing sleeve seat, 41-annular flange, 42-copper sleeve seat, 421-small-caliber end, 422-positioning pin, 5-self-lubricating bearing assembly, 51-detachable shaft sleeve, 52-self-lubricating bearing and 6-key.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, 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 creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the directions or positional relationships indicated by the terms "inside" and "outside" are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be interpreted as a limitation of the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "configured," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 2, a self-lubricating bearing mechanism for screw shaft coupling of a screw conveyor comprises 2 adjacent sections of

conveyor housings

1 and 2 adjacent screw shafts 2, wherein the screw shafts 2 are positioned in the conveyor housings 1, and is characterized by further comprising a coupling shaft 3, a bearing sleeve seat 4 and a self-lubricating bearing assembly 5; the bearing sleeve seat 4 is arranged between 2 sections of the conveyor shell 1 and is connected to 2 sections of the conveyor shell 1; the coupling shaft 3 is arranged through the bearing sleeve seat 4; the self-lubricating bearing assembly 5 is sleeved on the connecting shaft 3, and the self-lubricating bearing assembly 5 is fixed on the bearing sleeve seat 4; the coupling shaft 3 is rotationally connected with the self-lubricating bearing assembly 5; one end of the coupling shaft 3 is fixed with 1 screw shaft 2, and the other end of the coupling shaft 3 is fixed with the other 1 screw shafts 2.

In order to realize that the lubricating oil does not need to be filled regularly, the risk of bearing blocking is avoided, the service life of a connecting structure can be prolonged, and the frequency of maintenance and replacement is reduced, the technical scheme is provided with the connecting structure comprising the connecting shaft 3, the bearing sleeve seat 4 and the self-lubricating bearing assembly 5, the conveyor shell 1 and the screw shaft 2 of the screw conveyor are of a sectional structure, and the connecting structure is used for connecting 2 adjacent sections of

conveyor shells

1 and 2 adjacent screw shafts 2. The bearing sleeve seat 4 is provided with a containing cavity for installing the self-lubricating bearing assembly 5, the self-lubricating bearing assembly 5 is provided with a plurality of positioning parts, positioning pins 422 inserted into the positioning parts are arranged in the containing cavity, and the positioning pins 422 surround the axis of the containing cavity. The self-lubricating bearing assembly 5 comprises a detachable shaft sleeve 51 and a self-lubricating bearing 52, the detachable shaft sleeve 51 is arranged in the accommodating cavity, the positioning part is configured in the detachable shaft sleeve 51, and the positioning part can be a pin hole; the self-lubricating bearing 52 is in interference fit with the detachable shaft sleeve 51, the self-lubricating bearing 52 is sleeved on the coupling shaft 3, and the self-lubricating bearing 52 is in transition fit with the coupling shaft 3. The positioning pins 422 are arranged around the axis of the accommodating cavity, and the positioning of the detachable shaft sleeve 51 is realized by the positioning pins 422, so that the axis of the detachable shaft sleeve 51 is ensured to be collinear with the axis of the copper sleeve seat 42. Bearing housing seat 4 includes annular flange 41 and the copper housing seat 42 that is fixed in this annular flange 41 centre of a circle, and this detachable shaft sleeve 51 is located to this copper housing seat 42 cover, and the flange also has been configured to the tip of conveyer casing 1, and adjacent 2 sections conveyer casing 1 is located the both ends of this annular flange 41 respectively, and this annular flange 41 utilizes locking bolt to couple in 2 sections this conveyer casing 1, self-lubricating bearing 52 configures to graphite copper housing bearing, should dismantle shaft sleeve 51 and this holding chamber transitional fit to be convenient for this detachable shaft sleeve 51 is from dismouting in this holding chamber, in order to avoid detachable shaft sleeve 51 to rock at the holding intracavity, need through setting up less cooperation tolerance, in order to guarantee that detachable shaft sleeve 51 rocks at reasonable within range. And the graphite copper sleeve bearing and the detachable shaft sleeve 51 are in interference fit, so that the graphite copper sleeve bearing and the detachable shaft sleeve 51 are prevented from moving relatively when the detachable shaft sleeve is used. However, the interference between the graphite copper bush bearing and the detachable shaft sleeve 51 cannot be too large, and it is necessary to ensure that the graphite copper bush bearing can be conveniently detached. The graphite copper bush bearing is in transition fit with the coupling shaft 3, so that the coupling shaft 3 can rotate relative to the graphite copper bush bearing to realize the rotation of the screw shaft 2. The coupling shaft 3 can be connected with the screw shaft 2 by a key 6, a bayonet joint or other detachable connection structure. Because self-lubricating bearing 52, graphite copper sheathing bearing itself has lubricating function, and the clearance between graphite copper sheathing bearing and coupling shaft 3 is very little, and the dust is difficult for getting into in the clearance between graphite copper sheathing bearing and the coupling shaft 3, compare with prior art, this technical scheme need not regularly filling lubricating oil, has avoided the easy dead risk of card when using antifriction bearing, can prolong the life of draw bail, has reduced the frequency of maintenance change. Compared with the prior art, this technical scheme sets up the holding chamber including the self-lubricating bearing subassembly 5 that can dismantle axle sleeve 51 and self-lubricating bearing 52 through setting up in copper sheathing seat 42, sets up a plurality of locating pins 422 in the holding chamber, and a plurality of these locating pins 422 encircle this holding chamber axis and set up, utilizes locating pin 422 to realize the location of dismantling axle sleeve 51, guarantees to dismantle the axis of axle sleeve 51 and the axis collineation of copper sheathing seat 42. And the utility model discloses the utilization can be dismantled axle sleeve 51 and copper sheathing seat 42 and can be dismantled and be connected, is convenient for from lubricating bearing 52's quick replacement, reduces self-lubricating bearing 52's the dismouting degree of difficulty.

It should be noted that, after the self-lubricating bearing assembly 5 and the bearing sleeve seat 4 are assembled, the detachable shaft sleeve 51 and the copper sleeve seat 42 are fixed by using a locking bolt.

In some embodiments, the end of the screw shaft 2 is provided with a shaft tube 21, the end of the coupling shaft 3 is inserted into the shaft tube 21, and the coupling shaft 3 is key-coupled to the screw shaft 2. In order to realize the connection of the coupling shaft 3 and the screw shaft 2, the technical scheme adopts a key connection mode to realize the connection of the coupling shaft 3 and the screw shaft 2. In the transmission process, in order to avoid the direct damage of the key 6 to the shaft tube 21 of the screw shaft 2, the shaft tube 21 is internally provided with the shaft sleeve 22 in an interference fit mode, the end part of the connecting shaft 3 is inserted into the shaft sleeve 22, the end part of the connecting shaft 3 is in key connection with the shaft sleeve 22, the shaft sleeve 22 and the shaft tube 21 do not move relatively due to the interference fit of the shaft sleeve 22 and the shaft tube 21, the key connection is realized by utilizing the shaft sleeve 22 and the connecting shaft 3, and the shaft sleeve 22 plays a role in protecting the shaft tube 21 and prolonging the service life of the screw shaft 2.

In some embodiments, one end of the copper bushing seat 42 is configured as a small-bore end 421, the small-bore end 421 has an inner diameter smaller than the outer diameter of the self-lubricating bearing 52, and the small-bore end 421 has an inner diameter larger than the inner diameter of the self-lubricating bearing 52. In order to accurately assemble the self-lubricating bearing assembly 5 to the copper sleeve seat 42 and facilitate the disassembly of the self-lubricating bearing assembly 5, according to the technical scheme, one end of the copper sleeve seat 42 is configured to be the small-caliber end 421, the other end of the copper sleeve seat is configured to be the large-caliber end, the inner diameter of the copper sleeve seat 42 is the inner diameter of the large-caliber end, the small-caliber end 421 plays a role in hard limiting at one end of the copper sleeve seat 42, when the self-lubricating bearing assembly 5 is assembled to the copper sleeve seat 42, the self-lubricating bearing assembly 5 is only required to be pressed into the copper sleeve seat 42 until one end of the detachable shaft sleeve 51 abuts against the inner wall of the small-caliber end 421, and the self. When dismantling this self-lubricating bearing assembly 5, because the internal diameter of this small-bore end 421 is less than from the 52 external diameters of lubricating bearing, and the internal diameter of this small-bore end 421 is greater than from the 52 internal diameters of lubricating bearing, and self-lubricating bearing 52 with can dismantle axle sleeve 51 interference fit, assembly personnel only need utilize the instrument to hold the 52 application of force to this self-lubricating bearing 52 from small-bore to push away copper sheathing seat 42 with this self-lubricating bearing assembly 5, realize this self-lubricating bearing 52's quick dismantlement.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-lubricating bearing mechanism for screw shaft coupling of a screw conveyor comprises 2 adjacent sections of conveyor shells and 2 adjacent screw shafts, wherein the screw shafts are positioned in the conveyor shells;

the bearing sleeve seat is arranged between 2 sections of the conveyor shell and is connected to 2 sections of the conveyor shell;

the coupling shaft penetrates through the bearing sleeve seat; the self-lubricating bearing assembly is sleeved on the connecting shaft and is fixed on the bearing sleeve seat; the coupling shaft is rotationally connected with the self-lubricating bearing assembly;

one end of the coupling shaft is fixed with 1 screw shaft, and the other end of the coupling shaft is fixed with the other 1 screw shafts.

2. The self-lubricating bearing mechanism for coupling screw shafts of screw conveyors of claim 1 wherein the bearing housing is configured with a receiving cavity for mounting a self-lubricating bearing assembly configured with locating portions into which locating pins are configured, the locating pins being disposed around the axis of the receiving cavity.

3. The self-lubricating bearing mechanism for coupling screw shafts of screw conveyors of claim 2 wherein the self-lubricating bearing assembly comprises a removable sleeve and a self-lubricating bearing, the removable sleeve being disposed within the receiving cavity and the locating portion being disposed on the removable sleeve;

the self-lubricating bearing is in interference fit with the detachable shaft sleeve, the self-lubricating bearing sleeve is arranged on the connecting shaft, and the self-lubricating bearing is in transition fit with the connecting shaft.

4. A self-lubricating bearing mechanism for a screw conveyor screw shaft coupling as claimed in claim 3, wherein the self-lubricating bearing is configured as a graphite copper sleeve bearing.

5. The self-lubricating bearing mechanism for screw shaft coupling of screw conveyors of claim 1 wherein the end of the screw shaft is provided with a shaft tube into which the end of the coupling shaft is inserted, the coupling shaft being keyed to the screw shaft.

6. The self-lubricating bearing mechanism for coupling screw shafts of screw conveyors of claim 5 wherein a sleeve is interference fitted into the shaft tube, the end of the coupling shaft is inserted into the sleeve and the end of the coupling shaft is key-coupled to the sleeve.

7. A self-lubricating bearing mechanism for coupling screw shafts of screw conveyors as claimed in claim 3 wherein the bearing housing comprises an annular flange and a copper housing mounted at the centre of the annular flange, the copper housing being mounted over the self-lubricating bearing assembly, the annular flange being coupled to 2 sections of the conveyor housing by means of locking bolts.

8. The self-lubricating bearing mechanism for coupling screw shafts of screw conveyors of claim 7 wherein the copper shoe one end is configured as a small bore end having an inside diameter less than the self-lubricating bearing outside diameter and an inside diameter greater than the self-lubricating bearing inside diameter.