CN209836409U

CN209836409U - Rotor of rotor spinning machine

Info

Publication number: CN209836409U
Application number: CN201920426440.1U
Authority: CN
Inventors: 刘占旗; 刘冲; 贾鹏飞; 王娟; 刘占荣
Original assignee: Gaoyi Deli Textile Co Ltd
Current assignee: Gaoyi Deli Textile Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-24
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses a rotor spinning machine's spinning cup, including cup and the cup pole of coaxial coupling on the cup, in coaxial assembly has bearing assembly on the cup pole, bearing assembly has endotheca and overcoat, endotheca and overcoat rotate through locating a plurality of ball group between the two and are connected, and a plurality of the axis interval along the cup pole is laid to ball group, the endotheca with cup pole and/or cup fixed connection, in the one end that the cup was kept away from to the endotheca is equipped with and is used for sticising the roof pressure spare on the cup with the endotheca. The utility model has the characteristics of the assembly, dismantle conveniently, difficult emergence bearing or cup pole damage are applicable to rotor spinning machine's spinning cup bearing's assembly.

Description

Rotor of rotor spinning machine

Technical Field

The utility model belongs to the technical field of spinning apparatus, specifically speaking relates to a rotor of rotor type open-end spinning machine.

Background

The rotor of the rotor spinning machine comprises a cup body, a cup rod is mounted on the cup body, and the cup rod is overlapped with the axis of the cup body. In order to realize the rotation of the cup body, fibers are condensed and twisted in the cup body rotating at a high speed by using air flow to output yarn, and a plurality of bearings are arranged on a cup rod to realize the rotary connection of the spinning cup and the rotor spinning machine. Because the existing bearing and cup rod are in interference fit, the bearing or cup rod is often damaged in the process of assembling or disassembling the bearing by the connection mode, and the bearing or cup rod is assembled or disassembled by a special tool, so that the time and the labor are consumed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an assembly, dismantle conveniently, be difficult for taking place bearing or cup pole damage's rotor spinning machine's spinning cup.

In order to achieve the above object, the utility model adopts the following technical scheme:

a spinning rotor of a rotor spinning machine comprises a cup body and a cup rod coaxially connected to the cup body, wherein a bearing assembly is coaxially assembled on the cup rod and is provided with an inner sleeve and an outer sleeve, the inner sleeve and the outer sleeve are rotatably connected through a plurality of ball groups arranged between the inner sleeve and the outer sleeve, the ball groups are distributed at intervals along the axis of the cup rod, the inner sleeve is fixedly connected with the cup rod and/or the cup body, and a jacking part used for tightly pressing the inner sleeve on the cup body is arranged at one end, far away from the cup body, of the inner sleeve.

Further, the bearing assembly comprises a plurality of bearings coaxially arranged, the inner rings of the bearings are fixedly connected with each other and form the inner sleeve, the outer rings of the bearings are fixedly connected with each other and form the outer sleeve, through holes are formed in the radial direction of the bearings at the joint of the two bearings, the bearing assembly is fixed with the cup rod through positioning screws in threaded connection with the through holes, and when the positioning screws are abutted to the cup rod, the nuts of the positioning screws are arranged between the inner rings and the outer rings or tightly attached to the inner sleeve.

Furthermore, the bearing assembly comprises a plurality of coaxial bearings which are sequentially inserted into each other, a protrusion and a gap matched with the protrusion are respectively formed at two axial ends of an outer ring of each bearing, and the adjacent outer rings are inserted into each other and assembled to form the outer sleeve.

Furthermore, the bulges and the gaps are at least two and are uniformly arranged along the circumferential direction of the outer ring.

Further, in the cup is close to the one end of cup pole has set firmly the boss, the cup pole connect in on the boss, in follow on the boss the circumference of cup pole is opened uniformly has a plurality of slots, in the one end that the endotheca of bearing subassembly is close to the boss is formed with a plurality of picture peg with slot looks adaptation respectively.

Furthermore, a flange is formed at one end, away from the cup body, of the inner sleeve of the bearing assembly, and the jacking member is abutted against the flange.

Furthermore, the jacking member comprises a threaded sleeve coaxially connected to the cup rod in a threaded manner, and the threaded sleeve is jacked at one end, far away from the cup body, of the inner sleeve of the bearing assembly.

Furthermore, a handle is detachably connected to the threaded sleeve, and the handle extends along the radial direction of the threaded sleeve.

The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the radius of the side surface of the inner sleeve of the bearing assembly, which is contacted with the cup rod, is slightly larger than that of the cup rod, so that the inner sleeve can be easily sleeved on the cup rod; the inner sleeve is fixedly connected with the cup rod and/or the cup body, and a jacking member for tightly pressing the inner sleeve on the cup body is arranged at one end of the inner sleeve, which is far away from the cup body, so that the bearing assembly can be ensured to be fastened between the jacking member and the cup body, and the inner sleeve of the bearing assembly is fixed with the cup body and/or the cup body; therefore, the problems that the original bearing is difficult to assemble or disassemble, time and labor are wasted, and parts are easy to damage are solved; and a plurality of ball group are laid along the axis interval of cup pole, and then make overcoat and endotheca relative rotation in-process, rotate stably and be difficult for causing the condition that the ball group destroys, wherein the ball group is current holder and the ball on the circumference along the holder evenly imbeds the holder.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural view of a bearing assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3;

FIG. 5 is a schematic view of the structure of FIG. 3 from another perspective;

fig. 6 is a schematic structural diagram of a bearing according to an embodiment of the present invention;

FIG. 7 is a schematic view of an alternative bearing assembly constructed by splicing the bearings shown in FIG. 6;

fig. 8 is a schematic structural view of the connection between the cup body and the cup rod according to the embodiment of the present invention.

Labeling components: 1-cup body, 2-cup rod, 3-boss, 4-bearing assembly, 401-outer sleeve, 402-inner sleeve, 403-insert plate, 404-flange, 405-through hole, 406-bulge, 407-notch, 408-ball group, 5-top pressure piece, 6-handle and 7-slot.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.

Embodiment a rotor of rotor spinning machine

The embodiment discloses a spinning rotor of a rotor spinning machine, which comprises a cup body 1 and a cup rod 2, wherein the cup rod 2 is installed on the cup body 1, a bearing assembly 4 is assembled on the cup rod 2, and the axes of the cup body 1, the cup rod 2 and the bearing assembly 4 are coincided with each other, as shown in figures 1-2.

The bearing assembly 4 comprises an inner sleeve 402 and an outer sleeve 401, the radius of the side surface of the inner sleeve 402, which is in contact with the cup rod 2, is slightly larger than that of the cup rod 2, a plurality of ball groups 408 are arranged between the inner sleeve 402 and the outer sleeve 401, the ball groups 408 are distributed at intervals along the axis of the cup rod 2, and each ball group 408 is formed by an existing retainer and balls uniformly embedded into the retainer along the circumference of the retainer. The bearing assembly 4 adopts two embodiments:

in a first mode, as shown in fig. 3 to 5, the bearing assembly 4 includes a plurality of bearings whose axes are overlapped and arranged in sequence, inner rings of adjacent bearings are welded to each other to form an inner sleeve 402, and outer rings of adjacent bearings are welded to each other to form an outer sleeve 401. A through hole 405 is formed at the welding position of the two bearings along the radial direction of the bearings, the inner sleeve 402 of the bearing is fixed with the cup rod 2 through a positioning screw (not shown in the figure) in threaded connection with the through hole 405, when the positioning screw is abutted to the cup rod 2, the nut of the positioning screw is positioned between the inner sleeve 402 and the outer sleeve 401, and the nut of the positioning screw can also be tightly attached to the side surface of one side of the inner sleeve 402, which is far away from the cup rod 2.

Secondly, in order to facilitate the maintenance or replacement of the bearing assembly 4, the bearing assembly 4 may be divided into a plurality of parts, and one of the parts may be easily replaced after being damaged, without replacing the entire bearing assembly 4. As shown in fig. 6 to 7, the bearing assembly 4 includes a plurality of bearings whose axes are overlapped and sequentially inserted into each other, and a protrusion 406 and a notch 407 are formed at both axial ends of an outer ring of each bearing, respectively. The number of the protrusions 406 and the number of the gaps 407 are at least two, and the protrusions 406 and the gaps 407 are uniformly arranged along the circumferential direction of the outer ring of the bearing, each protrusion 406 corresponds to each gap 407, and the protrusions 406 are matched with the gaps 407. The adjacent outer rings of the bearing are sequentially spliced to form an outer sleeve 401, and the adjacent inner rings of the bearing are sequentially and tightly attached to form an inner sleeve 402.

As shown in fig. 8, a boss 3 is fixedly welded at one end of the cup body 1 close to the cup rod 2, the cup rod 2 is screwed on the boss 3, a plurality of slots 7 are uniformly formed on the boss 3 along the circumferential direction of the cup rod 2, a plurality of insertion plates 403 respectively corresponding to the slots 7 are formed at one end of the inner sleeve 402 of the bearing assembly 4 close to the boss 3, and the insertion plates 403 are matched with the corresponding slots 7.

In order to firmly fix the inner sleeve 402 of the bearing assembly 4 on the boss 3 and to bind the inner sleeve 402 on the cup rod 2, as shown in fig. 1-2, a jacking member 5 is provided at one end of the inner sleeve 402 of the bearing assembly 4 away from the cup body 1. In the present embodiment, in order to increase the contact area between the inner sleeve 402 of the bearing assembly 4 and the pressing member 5, a flange 404 is formed at one end of the inner sleeve 402 of the bearing assembly 4 away from the cup body 1, and the pressing member 5 is pressed against the flange 404. The jacking member 5 comprises a threaded sleeve, the threaded sleeve is overlapped with the axis of the cup rod 2, the threaded sleeve is in threaded connection with the cup rod 2, and the threaded sleeve is jacked at one end, far away from the cup body 1, of the inner sleeve 402 of the bearing assembly 4. In order to facilitate the threaded sleeve to be screwed on the cup rod 2, the threaded sleeve is connected with a handle 6 in a threaded manner, and the handle 6 extends along the radial direction of the threaded sleeve.

The utility model discloses installation dismantlement process as follows:

when the first bearing assembly 4 is selected, firstly, the inner sleeve 402 of the bearing assembly 4 is sleeved on the cup rod 2, and the inserting plate 403 of the bearing assembly 4 is ensured to be inserted into the corresponding inserting groove 7 on the boss 3; then, the handle 6 is assembled on the threaded sleeve, and the handle 6 is operated to move the threaded sleeve to the bearing assembly 4 while being in threaded connection with the cup rod 2; when the threaded sleeve abuts against the bearing assembly 4, the threaded sleeve is continuously rotated, so that the inner sleeve 402 of the bearing assembly 4 is pressed, and then the handle 6 is detached; then, a plurality of set screws are inserted between the inner sleeve 402 and the outer sleeve 401 from the outer sleeve 401, and the set screws are screwed to abut against the cup rod 2.

When the second bearing assembly 4 is selected, firstly, the bearings are sequentially sleeved on the cup rod 2, and the protrusions 406 of the outer ring are ensured to be inserted into the gaps 407, so that the bearing assembly 4 is formed; then, ensuring that the inserting plate 403 on the inner sleeve 402 of the bearing assembly 4 is inserted into the inserting groove 7 of the boss 3; then, the handle 6 is assembled on the threaded sleeve, and the handle 6 is operated to move the threaded sleeve to the bearing assembly 4 while being in threaded connection with the cup rod 2; when the threaded sleeve abuts against the bearing assembly 4, the threaded sleeve is continuously rotated, so that the inner sleeve 402 of the bearing assembly 4 is pressed, and then the handle 6 is removed, so that the bearing assembly 4 is installed.

The removal process of the first bearing assembly 4 and the second bearing assembly 4 is opposite to the operation of their respective mounting processes and will not be described herein.

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 may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.

Claims

1. The utility model provides a rotor of rotor spinning machine, includes cup and the cup pole of coaxial coupling on the cup, its characterized in that: the cup rod is coaxially provided with a bearing assembly, the bearing assembly is provided with an inner sleeve and an outer sleeve, the inner sleeve and the outer sleeve are rotatably connected through a plurality of ball groups arranged between the inner sleeve and the outer sleeve, the ball groups are distributed at intervals along the axis of the cup rod, the inner sleeve is fixedly connected with the cup rod and/or the cup body, and one end of the inner sleeve, far away from the cup body, is provided with a jacking piece used for tightly pressing the inner sleeve on the cup body.

2. A rotor for a rotor spinning machine according to claim 1, wherein: the bearing assembly comprises a plurality of bearings which are coaxially arranged, wherein the inner rings of the bearings are adjacent to each other and fixedly connected to form the inner sleeve, the outer rings of the bearings are adjacent to each other and fixedly connected to form the outer sleeve, through holes are formed in the joints of the two bearings along the radial direction of the bearings, the bearing assembly is fixed with the cup rod through positioning screws in threaded connection with the through holes, and when the positioning screws are abutted to the cup rod, nuts of the positioning screws are arranged between the inner rings and the outer rings or tightly attached to the inner sleeve.

3. A rotor for a rotor spinning machine according to claim 1, wherein: the bearing assembly comprises a plurality of bearings which are coaxial and are sequentially inserted into each other, a bulge and a gap matched with the bulge are respectively formed at the two axial ends of the outer ring of each bearing, and the adjacent outer rings are inserted into each other and assembled to form the outer sleeve.

4. A rotor for a rotor spinning machine according to claim 3, wherein: the bulges and the openings are at least two and are uniformly arranged along the circumferential direction of the outer ring.

5. Rotor for a rotor spinning machine according to any one of claims 1-4, characterised in that: the cup body is close to the one end of cup pole has set firmly the boss, the cup pole connect in on the boss, in follow on the boss the circumference of cup pole is opened evenly has a plurality of slot, in the one end that the endotheca of bearing subassembly is close to the boss is formed with the picture peg of a plurality of respectively with slot looks adaptation.

6. Rotor for a rotor spinning machine according to any one of claims 1-4, characterised in that: and a flange is formed at one end, away from the cup body, of the inner sleeve of the bearing assembly, and the jacking member is abutted against the flange.

7. Rotor for a rotor spinning machine according to any one of claims 1-4, characterised in that: the jacking member comprises a threaded sleeve coaxially connected to the cup rod in a threaded manner, and the threaded sleeve is jacked at one end, far away from the cup body, of the inner sleeve of the bearing assembly.

8. A rotor for a rotor spinning machine according to claim 7, wherein: the handle is detachably connected to the threaded sleeve and extends along the radial direction of the threaded sleeve.