CN217539361U - Axial positioning device and supporting component of roller shaft - Google Patents

Abstract

The utility model discloses an axial positioning device and supporting component of drum shaft, wherein axial positioning device includes: the two first end covers are respectively used for being sleeved at two axial ends of the roller shaft, locking ring grooves are formed in the outer side walls of the two first end covers, which are deviated from each other, the two first sealing rings are respectively used for being sleeved at two axial ends of the roller shaft, and positioning rings matched with the locking ring grooves are arranged on the first sealing rings; the utility model discloses a be equipped with on the first sealing washer with locking ring groove complex holding ring establishes on the drum shaft when first end cover and first sealing washer cover, and the holding ring is located the locking ring inslot, and two first end covers support each other with two first sealing washers and hold, with the restriction axial displacement is followed to the drum shaft, and first sealing washer is synchronous rotatory with the drum shaft, keeps at locking ring inslot rotation through the holding ring, when restriction drum shaft axial displacement, possesses sealed effect.

Description

Axial positioning device and supporting component of roller shaft

Technical Field

The application relates to the technical field of roller shaft positioning and supporting devices, in particular to an axial positioning device and a supporting assembly of a roller shaft.

Background

The roller is one of the most critical devices of the main belt conveyor for charging the blast furnace, is used as a main power transmission component of the main belt conveyor for charging the blast furnace, and has a service life directly influencing the stable production of the blast furnace. Heavy cylinders are adopted for blast furnace feeding main belts of an iron-making operation department of Beijing first Steel shares company, and cone hole self-aligning roller bearings are adopted for the heavy cylinders, mainly because the heavy cylinder bearings are large in diameter and heavy in weight, and the cone hole self-aligning roller bearings are convenient to install, but in the production process, due to the fact that joints are vulcanized and lapped and deviation, blanking points are deviated and the like, the belt can deviate in different degrees, and because the tightening sleeve expansion torque of the cone hole self-aligning roller bearings is insufficient, the bearing tightening sleeve locking nut is caused to be invalid, the shaft and the whole barrel are caused to axially float, so that the blast furnace is forced to stop wind to overhaul and replace the cylinders, and great influence is caused to the normal production of the blast furnace.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, this application provides an axial positioning device and supporting component of drum shaft to the problem of axial displacement appears at the rotation in-process of drum shaft among the solution prior art.

The above object of the present invention is achieved by the following technical solutions:

an axial positioning device for a drum shaft, comprising:

the first end covers are provided with two first end covers which are respectively sleeved at two axial ends of the drum shaft, locking ring grooves are arranged on the outer side walls of the two first end covers, which are separated from each other, and the centers of the locking ring grooves are arranged on the axis of the drum shaft;

the two first sealing rings are respectively sleeved at the two axial ends of the drum shaft, and positioning rings matched with the locking ring grooves are arranged on the first sealing rings;

when the positioning ring is positioned in the locking ring groove, the two first end covers and the two first sealing rings are mutually abutted to limit the axial movement of the drum shaft.

Further, the locking ring groove is provided with two, two the diameter of locking ring groove is different, and arranges with one heart, the position ring is provided with two for inlay card to two simultaneously in the locking ring groove.

Further, the first sealing ring is provided with two side end faces, one side end face is used for being contacted with the end face of the positioning step on the roller shaft, and the other side end face is used for being contacted with the end face of the jacking sleeve on the roller shaft.

Based on the same inventive concept, the application also provides a support assembly of the roller shaft, which comprises a bearing seat, a bearing main body, a jacking sleeve, a first locking piece, a second locking piece and the axial positioning device;

the jacking sleeve is used for being sleeved at the end part of the roller shaft, one side of the jacking sleeve is attached to the end face of the side, and the jacking sleeve is provided with a conical peripheral surface;

the bearing main body is sleeved on the tightening sleeve, and the inner peripheral surface of the bearing main body is attached to the conical peripheral surface;

the first locking piece is sleeved on one side, far away from the first sealing ring, of the tightening sleeve and is in threaded connection with the tightening sleeve;

the bearing frame cover is established on the bearing main part, just the bearing frame with connect fixedly through the second retaining member between the first end cover.

Further, the second locking member is provided as a bolt.

Furthermore, one side of the bearing seat, which is far away from the first end cover, is also provided with a detachable second end cover, and a second locking piece for connection and fixation is arranged between the second end cover and the bearing seat.

Further, the outer diameter of the tightening sleeve close to one end of the first sealing ring is larger than that of the other end of the first sealing ring.

Furthermore, a third locking part used for limiting the first locking part to be loosened is arranged on the first locking part.

Furthermore, the third retaining member includes the buckle, buckle detachable establishes on the first retaining member, be equipped with on the tight cover in top and be used for the holding the restriction groove of buckle tip works as buckle tip inlay card is arrived in the restriction groove, the buckle restriction first retaining member with tight cover relative rotation.

Furthermore, the first locking piece is provided with a plurality of clamping grooves used for accommodating the buckles, and the clamping grooves are detachably arranged in the clamping grooves through positioning pins.

Compared with the prior art, the utility model has the advantages of:

the utility model provides an axial positioning device establishes the first end cover at the axial both ends of drum shaft through being used for the cover to and be used for the cover to establish the first sealing washer at the axial both ends of drum shaft, be equipped with the locking annular on the lateral wall that first end cover deviates from mutually, be equipped with on the first sealing washer with locking annular complex holding ring, establish on the drum shaft when first end cover and first sealing washer cover, and the holding ring is located the locking annular, two first end covers support each other with two first sealing washers and hold in order to restrict the drum shaft is along axial displacement, and then improves the stability of drum shaft in the course of the work, and the center of locking annular is on the axis of drum shaft moreover, even if the holding ring is located the locking annular, first sealing washer also can be synchronous and the drum shaft is rotatory, keeps at locking annular internal rotation through the holding ring, when restriction drum shaft axial displacement, possesses sealed effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a support assembly according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view of a portion of FIG. 1A according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of the first end cap and the first seal ring according to the embodiment of the present disclosure when separated;

in the figure: 1. a first end cap; 11. a locking ring groove; 12. a second end cap; 2. a first seal ring; 21. a positioning ring; 22. a side end face; 3. a drum shaft; 31. positioning a step; 4. tightly pushing the sleeve; 5. a bearing seat; 6. a bearing body; 7. a first locking member; 8. a second locking member; 91. buckling; 92. a limiting groove; 93. a card slot; 94. and positioning pins.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments of the present invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

Example 1

As shown in fig. 1-3, an axial positioning device for a roller shaft comprises a first end cover 1 and a first sealing ring 2; wherein the content of the first and second substances,

the two first end covers 1 are respectively sleeved at two axial ends of the roller shaft 3, locking ring grooves 11 are arranged on the outer side walls of the two first end covers 1 which are deviated from each other, and the centers of the locking ring grooves 11 are arranged on the axis of the roller shaft 3;

two first sealing rings 2 are arranged and are respectively sleeved at two axial ends of the drum shaft 3, and the first sealing rings 2 are provided with positioning rings 21 matched with the locking ring grooves 11;

when the positioning ring 21 is located in the locking ring groove 11, the two first end caps 1 and the two first sealing rings 2 abut against each other to limit the axial movement of the drum shaft 3.

The axial positioning device that this embodiment provided, its theory of operation is: through being used for the cover to establish the first end cover 1 at the axial both ends of drum shaft 3 to and be used for the cover to establish the first sealing washer 2 at the axial both ends of drum shaft 3, be equipped with locking annular groove 11 on the lateral wall that first end cover 1 deviates from mutually, be equipped with on first sealing washer 2 with locking annular groove 11 complex holding ring 21, when first end cover 1 overlaps with first sealing washer 2 on drum shaft 3, and holding ring 21 is located locking annular groove 11, two first end covers 1 support each other with two first sealing washers 2 and hold, in order to restrict drum shaft 3 is along axial displacement, and then improve drum shaft 3 stability in the course of the work, and the center of locking annular groove 11 is on drum shaft 3's axis, even if holding ring 21 is located locking annular groove 11, first sealing washer 2 also can be synchronous rotatory with drum shaft 3, keeps in locking annular groove 11 internal rotation through holding ring 21, when restriction drum shaft 3 axial displacement, possesses sealed effect.

Further, on the basis of the above embodiment, the number of the locking ring grooves 11 is two, the two locking ring grooves 11 have different diameters and are concentrically arranged, and the two positioning rings 21 are provided and are used for being simultaneously clamped and embedded into the two locking ring grooves 11, so that the stability of the positioning rings 21 is further improved, and the axial limitation failure of the drum shaft 3 caused by the structural failure of one positioning ring 21 is avoided.

Further, on the basis of the above embodiment, the first sealing ring 2 has two side end surfaces 22, one side end surface 22 is used for contacting with the end surface of the positioning step 31 on the drum shaft 3, and the other side end surface 22 is used for contacting with the end surface of the tightening sleeve 4 on the drum shaft 3, so that the two end surfaces of the first sealing ring 2 are clamped by the step end surface of the drum shaft 3 and the tightening sleeve 4, the relative axial displacement of the first sealing ring 2 and the drum shaft 3 is avoided, and the stability is improved.

Example 2

As shown in fig. 1 to 3, based on the same inventive concept, the present application further provides a supporting assembly of a drum shaft, which comprises a bearing seat 5, a bearing main body 6, a tightening sleeve 4, a first locking member 7, a second locking member 8, and the axial positioning device of the above embodiment 1, on the basis of the above embodiment 1;

the jacking sleeve 4 is used for being sleeved at the end part of the roller shaft 3, one side of the jacking sleeve 4 is attached to the side end face 22, and the jacking sleeve 4 is provided with a conical peripheral surface.

The bearing body 6 is sleeved on the jacking sleeve 4, the inner peripheral surface of the bearing body 6 is attached to the conical peripheral surface, the conical peripheral surface arranged on the jacking sleeve 4 is also arranged on the inner peripheral surface of the bearing body 6, and the bearing body 6 can be tightly matched with the jacking sleeve 4 when the bearing body 6 is sleeved on the jacking sleeve 4 in the first direction and the bearing body 6 is subjected to continuous abutting force in the first direction, so that the bearing body 6 is prevented from being separated from the jacking sleeve 4 when the bearing body 6 is subjected to continuous abutting force in the first direction.

First retaining member 7 cover is established top tight cover 4 is kept away from one side of first sealing washer 2, and with top tight cover 4 threaded connection, after first retaining member 7 and top tight cover 4 threaded connection, first retaining member 7 is located one side of bearing main part 6 to avoid bearing main part 6 to follow the reverse of deviating from on top tight cover 4, compress tightly top tight cover 4 through bearing main part 6 simultaneously, avoid top tight cover 4 and first sealing washer 2 separation.

Bearing frame 5 cover is established on the bearing subject 6, just bearing frame 5 with connect fixedly between the first end cover 1 through second retaining member 8, hold the bearing and keep the drum shaft 3 steady rotation of bearing center assembly through bearing frame 5.

Further, on the basis of the above embodiment, the second locking member 8 is a bolt, and the relative rotation of the bolt facilitates the disassembly and assembly operation for maintenance and replacement.

Further, on the basis of above-mentioned embodiment, bearing frame 5 is kept away from one side of first end cover 1 still is equipped with detachable second end cover 12, second end cover 12 with be equipped with between the bearing frame 5 and be used for connecting fixed second retaining member 8 to in the first sealing washer 2 of operation dismouting, top tight cover 4 or first retaining member 7 after second end cover 12 dismantles, improve the convenience of dismantling or maintaining.

Further, on the basis of the above embodiment, the outer diameter of the tightening sleeve 4 near one end of the first seal ring 2 is larger than that of the other end, so that after the tightening sleeve 4 is installed, the bearing main body 6 can be conveniently sleeved on the tightening sleeve 4.

Further, on the basis of the above embodiment, the first locking member 7 is provided with a third locking member for limiting the loosening of the first locking member 7, and by arranging the third locking member, the first locking member 7 is prevented from rotating reversely or loosening in the rotating process of the roller shaft 3, so that the stability in operation is improved.

Further, on the basis of the above embodiment, the third locking member includes a buckle 91, the buckle 91 is detachably disposed on the first locking member 7, a limiting groove 92 for accommodating an end portion of the buckle 91 is disposed on the tightening sleeve 4, and when the end portion of the buckle 91 is embedded in the limiting groove 92, the buckle 91 limits the relative rotation between the first locking member 7 and the tightening sleeve.

Further, on the basis of the above embodiment, the first locking member 7 has a plurality of slots 93 for receiving the buckles 91, the slots 93 are detachably disposed in the slots 93 through the positioning pins 94, after the first locking member 7 is screwed tightly with the tightening sleeve 4, the slot 93 at the position of the limiting groove 92 is selected, the buckle 91 is mounted in the slot 93, the buckle 91 is positioned through the positioning pins 94, and one end of the buckle 91 extends into the limiting groove 92, so that the relative rotation between the first locking member 7 and the tightening sleeve is limited, and the relative movement between the buckle 91 and the first locking member 7 is prevented.

It should be understood that the terms first, second, etc. are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

It is to be understood that in the description of the present invention, the terms "upper", "vertical", "inner", "outer", and the like, refer to an orientation or positional relationship that is conventionally used to place the disclosed product in use, or that is conventionally understood by those skilled in the art, and are used merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally 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 as a specific case by those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.

In the following description, specific details are provided to provide a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An axial positioning device for a drum shaft, comprising:

the roller shaft locking device comprises two first end covers (1), two first end covers are arranged and are respectively sleeved at two axial ends of a roller shaft (3), locking ring grooves (11) are arranged on outer side walls of the two first end covers (1) which are deviated from each other, and the centers of the locking ring grooves (11) are arranged on the axis of the roller shaft (3);

the two first sealing rings (2) are respectively sleeved at the two axial ends of the drum shaft (3), and the first sealing rings (2) are provided with positioning rings (21) matched with the locking ring grooves (11);

when the positioning ring (21) is positioned in the locking ring groove (11), the two first end covers (1) and the two first sealing rings (2) are mutually abutted to limit the roller shaft (3) to move along the axial direction.

2. An axial positioning device for a drum shaft according to claim 1, characterized in that: the locking ring groove (11) are provided with two, two the diameter of locking ring groove (11) is different, and arranges with one heart, holding ring (21) are equipped with two to be used for the snap-in simultaneously to two in the locking ring groove (11).

3. An axial positioning device for a drum shaft according to claim 1, wherein: the first sealing ring (2) is provided with two side end faces (22), one side end face (22) is used for being in contact with the end face of a positioning step (31) on the roller shaft (3), and the other side end face (22) is used for being in contact with the end face of a tightening sleeve (4) on the roller shaft (3).

4. A support assembly of a drum shaft, characterized in that it comprises a bearing seat (5), a bearing body (6), a jacking sleeve (4), a first retaining member (7), a second retaining member (8), and an axial positioning device according to claim 3;

the jacking sleeve (4) is sleeved at the end part of the roller shaft (3), one side of the jacking sleeve (4) is attached to the side end face (22), and the jacking sleeve (4) is provided with a conical peripheral surface;

the bearing main body (6) is sleeved on the jacking sleeve (4), and the inner peripheral surface of the bearing main body (6) is attached to the conical peripheral surface;

the first locking piece (7) is sleeved on one side, far away from the first sealing ring (2), of the tightening sleeve (4) and is in threaded connection with the tightening sleeve (4);

bearing frame (5) cover is established on bearing body (6), just bearing frame (5) with connect fixedly through second retaining member (8) between first end cover (1).

5. The drum shaft supporting assembly according to claim 4, wherein: the second locking piece (8) is a bolt.

6. The drum shaft supporting assembly according to claim 4, wherein: one side of the bearing seat (5) far away from the first end cover (1) is further provided with a detachable second end cover (12), and a second locking piece (8) used for being connected and fixed is arranged between the second end cover (12) and the bearing seat (5).

7. The drum shaft supporting assembly according to claim 4, wherein: the outer diameter of one end, close to the first sealing ring (2), of the jacking sleeve (4) is larger than that of the other end of the jacking sleeve.

8. The drum shaft supporting assembly according to claim 7, wherein: and a third locking part for limiting the loosening of the first locking part (7) is arranged on the first locking part (7).

9. The drum shaft supporting assembly according to claim 8, wherein: the third retaining member comprises a buckle (91), the buckle (91) is detachably arranged on the first retaining member (7), a limiting groove (92) for accommodating the end part of the buckle (91) is formed in the tightening sleeve (4), the end part of the buckle (91) is embedded in the limiting groove (92), and the buckle (91) limits the first retaining member (7) and the tightening sleeve (4) to rotate relatively.

10. The drum shaft supporting assembly according to claim 9, wherein: the first locking piece (7) is provided with a plurality of clamping grooves (93) used for containing the buckles (91), and the clamping grooves (93) are detachably arranged in the clamping grooves (93) through positioning pins (94).

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