CN112474981A

CN112474981A - Spinning wheel system of spinning machine tool and application method thereof

Info

Publication number: CN112474981A
Application number: CN202011244702.6A
Authority: CN
Inventors: 孙家鑫; 朱利军; 李新和
Original assignee: Changsha Super Spin Machinery Technology Co ltd
Current assignee: Changsha Super Spin Machinery Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-03-12
Anticipated expiration: 2040-11-10
Also published as: CN112474981B

Abstract

The invention discloses a spinning wheel system of a spinning machine tool and an application method thereof, wherein the spinning wheel system comprises: the upper end of the upper spinning wheel arm is connected with a tool rest of a spinning machine tool, the lower end of the upper spinning wheel arm is provided with a counter bore, and the side wall of the counter bore is provided with a rotating connection structure mounting hole and an eccentric shaft mounting hole; the upper end of the lower rotating wheel arm is provided with a boss which extends into the sinking hole, the boss is provided with a rotating connection structure mounting groove and an eccentric shaft inserting hole, and a rotating wheel is detachably mounted on the lower rotating wheel arm; the rotary connecting structure is arranged in the rotary connecting structure mounting hole and the rotary connecting structure mounting groove, and the boss is rotatably mounted in the counter bore; the eccentric shaft penetrates through the eccentric shaft mounting hole and the eccentric shaft insertion hole, and the boss is fixedly mounted in the counter bore. This spinning wheel system does not need lifting device can realize spinning wheel switching-over, need not to take off the spinning wheel system when switching-over and change spinning wheel, reducible installation time uses manpower sparingly, improves spinning efficiency.

Description

Spinning wheel system of spinning machine tool and application method thereof

Technical Field

The invention relates to the technical field of plastic forming, in particular to a spinning wheel system of a spinning machine tool and an application method thereof.

Background

With the rapid development of aerospace technology and pressure vessels, the end sockets and the like are larger and larger, the performance requirements are higher and higher, and the material selection is more and more diversified. In the spinning process, the size and spinning load of a spinning machine tool are larger and larger, so that the spinning wheel system is larger and heavier.

In the spinning process of a workpiece, the spinning wheel system is often replaced along with the requirement; how to rapidly replace the rotary wheel system at this time is a very important matter; the spinning efficiency is also related to the spinning efficiency during spinning, and even during hot spinning, the energy consumption is also related to the energy consumption.

For example, when a 3350 head is spun by a 3350 spinning machine tool at university of China and south, the weight of the whole spinning frame and the spinning wheel system reaches about 1 ton; in the process of spinning 3350 end sockets, the spinning roller system needs to be reversed by 180 degrees or the spinning roller needs to be replaced. If the whole body is disassembled and assembled again after reversing, the requirement on personnel and special hoisting tools is high, and more time is needed to complete replacement.

Disclosure of Invention

The invention mainly aims to provide a spinning wheel system of a spinning machine tool and an application method thereof.

In order to achieve the above object, the present invention provides a spinning roller system of a spinning machine, comprising:

the upper end of the upper rotating wheel arm is connected with a tool rest of the spinning machine tool, the lower end of the upper rotating wheel arm is provided with a counter bore, and the side wall of the counter bore is provided with a rotating connection structure mounting hole and an eccentric shaft mounting hole;

the upper end of the lower rotating wheel arm is provided with a boss which extends into the counter sink, the boss is provided with a rotating connection structure mounting groove and an eccentric shaft inserting hole, and a rotating wheel is detachably mounted on the lower rotating wheel arm;

the rotary connecting structure is arranged in the rotary connecting structure mounting hole and the rotary connecting structure mounting groove, and the boss is rotatably mounted in the counter bore;

the eccentric shaft penetrates through the eccentric shaft mounting hole and the eccentric shaft insertion hole, and the boss is fixedly mounted in the counter bore.

Further, the eccentric shaft includes flange portion, big shaft section and staff shaft section, is provided with a plurality of screw mounting holes along the circumference equipartition in the flange portion, and the middle part of flange portion is equipped with a hexagon socket head bore, and the one end and the flange portion of big shaft section are connected, and the other end of big shaft section is connected with the staff shaft section, and the diameter of big shaft section is greater than the diameter of staff shaft section, and the axle center of big shaft section and staff shaft section is not the collineation.

Furthermore, the large shaft section is arranged in the eccentric shaft mounting hole in a penetrating mode, the small shaft section is inserted in the eccentric shaft insertion hole, and a gap is reserved between the top surface of the boss and the top surface of the counter bore; when the eccentric shaft is rotated, the upper end shaft shoulder of the lower rotary wheel arm is abutted against or separated from the lower end bottom surface of the upper rotary wheel arm.

Furthermore, a plurality of eccentric shaft mounting holes are uniformly formed in the side wall of the counter bore along the circumferential direction, a plurality of eccentric shaft inserting holes are uniformly formed in the boss along the circumferential direction, the number of the eccentric shafts is multiple, and a plurality of eccentric shafts are uniformly arranged along the circumferential direction of the boss.

Furthermore, the rotary connecting structure comprises a rolling body and a rolling body adjusting structure, and the rolling body can be arranged in the rotary connecting structure mounting groove in a rolling manner; the rolling body adjusting structure is arranged in the mounting hole of the rotary connecting structure so as to adjust the pre-tightening force of the rolling body.

Further, the rolling element adjusting structure comprises a top plug, an adjusting screw and an adjusting spring, the adjusting screw is in threaded connection with the rotating connecting structure mounting hole, an inner hexagonal groove is formed in the adjusting screw, a hemispherical groove is formed in one side of the top plug, the rolling element can be arranged in the hemispherical groove and in the rotating connecting structure mounting groove in a rolling mode, a greasing threaded hole is formed in the other side of the top plug, the greasing threaded hole is communicated with the hemispherical groove, and two ends of the adjusting spring are connected with the top plug and the adjusting screw respectively.

Furthermore, an annular groove is formed in the top plug, a sinking groove is formed in the adjusting screw, one end of the adjusting spring is arranged in the annular groove, and the other end of the adjusting spring is arranged in the sinking groove.

Furthermore, the rotating connection structure mounting grooves are arranged along the circumferential direction of the bosses, a plurality of rotating connection structure mounting holes are uniformly distributed in the side wall of the counter bore along the circumferential direction, the number of the rotating connection structures is multiple, and the plurality of rotating connection structures are uniformly distributed along the circumferential direction of the bosses.

According to another aspect of the invention, there is provided an application method of the spinning wheel system of the spinning machine, when reversing the spinning wheel, the eccentric shaft is removed, the lower spinning wheel arm is rotated until the spinning wheel is rotated to a proper position, and then the eccentric shaft is inserted to fixedly connect the lower spinning wheel arm and the upper spinning wheel arm.

According to another aspect of the present invention, there is provided an application method of the spinning roller system of the spinning machine tool, when a new lower spinning roller arm is replaced, the rotation connecting structure is detached, the eccentric shaft is detached, the lower spinning roller arm is detached from the upper spinning roller arm, the new lower spinning roller arm is replaced, and the rotation connecting structure and the eccentric shaft are installed to connect the new lower spinning roller arm to the lower end of the upper spinning roller arm.

By applying the technical scheme of the invention, the upper rotary wheel arm and the lower rotary wheel arm are arranged, the counter bores and the bosses are matched with each other, the upper rotary wheel arm and the lower rotary wheel arm are rotatably connected through the rotary connecting structure, and the upper rotary wheel arm and the lower rotary wheel arm are fixedly connected through the eccentric shaft; when the spinning wheel needs to be reversed, hoisting equipment is not needed, and only the eccentric shaft needs to be taken down, so that the upper spinning wheel arm and the lower spinning wheel arm are rotatably connected through the rotating connection structure, then the lower spinning wheel arm is rotated to a proper position, and then the eccentric shaft is installed; when a new spinning wheel needs to be replaced, the lower spinning wheel arm does not need to be detached, and the spinning wheel is detached from the lower spinning wheel arm and replaced with a new spinning wheel. The rotary wheel system can realize the reversing of the rotary wheel without hoisting equipment, and the lower rotary wheel arm is not required to be taken down when the rotary wheel is reversed and replaced, so that the installation time can be effectively reduced, the labor is saved, and the rotary pressing work efficiency is improved.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, 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 view of an assembly structure of a spinning roller system according to an embodiment of the present invention.

Fig. 2 is a schematic sectional view taken along the plane a-a in fig. 1.

Fig. 3 is a partial enlarged view at I in fig. 2.

Fig. 4 is a schematic sectional view taken along the plane B-B in fig. 1.

Fig. 5 is a schematic sectional view taken along the plane C-C in fig. 1.

Fig. 6 is a schematic structural diagram of an upper spinning wheel arm in the spinning wheel system according to the embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view taken along plane D-D of fig. 6.

Fig. 8 is a partial enlarged view at II in fig. 7.

Fig. 9 is a schematic sectional view taken along plane E-E in fig. 6.

Fig. 10 is a schematic sectional view taken along plane F-F in fig. 6.

Fig. 11 is a schematic structural diagram of a lower roller arm in the roller system according to the embodiment of the invention.

Fig. 12 is a schematic sectional view taken along the plane G-G in fig. 11.

Fig. 13 is a side view of the structure of fig. 11.

Fig. 14 is a schematic structural diagram of a rotating connection structure in the swivel wheel system according to the embodiment of the present invention.

Fig. 15 is a front view of an adjusting screw in the swivel wheel system according to an embodiment of the present invention.

Fig. 16 is a left side view of the structure of fig. 15.

Fig. 17 is a right-side view of the structure of fig. 15.

Fig. 18 is a schematic cross-sectional structural diagram of a plug in a spinning wheel system according to an embodiment of the present invention.

Fig. 19 is a schematic cross-sectional view of an eccentric shaft of a spinning wheel system according to an embodiment of the present invention.

Fig. 20 is a right side view of the eccentric shaft of the spinning wheel system according to the embodiment of the present invention.

Fig. 21 is a schematic structural diagram of a rotating wheel system according to an embodiment of the present invention.

Fig. 22 is a schematic structural diagram of a rotating wheel system according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

1. an upper rotating wheel arm; 2. a lower swivel arm; 3. a rotating connection structure; 4. an eccentric shaft; 5. rotating the wheel; 11. a counter bore; 12. a rotating connection structure mounting hole; 13. an eccentric shaft mounting hole; 14. a lower end bottom surface; 21. a boss; 22. an upper end shaft shoulder; 31. a rolling body; 32. a rolling body adjusting structure; 41. a flange portion; 42. a large shaft section; 43. a small shaft section; 211. a rotary connecting structure mounting groove; 212. an eccentric shaft insertion hole; 321. a top plug; 322. an adjusting screw; 323. adjusting the spring; 411. a screw mounting hole; 412. an inner hexagonal counter bore; 3211. a hemispherical recess; 3212. greasing the threaded hole; 3213. an annular groove; 3221. an inner hexagonal groove; 3222. and (5) sinking the tank.

Detailed Description

In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims of the present application do not denote any order, quantity, or importance, but rather the intention is to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" and "coupled" and the like are not restricted to direct connections, but may be indirectly connected through other intermediate connections. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Referring to fig. 1 to 22, a spinning roller system of a spinning machine according to an embodiment of the present invention mainly includes an upper spinning roller arm 1, a lower spinning roller arm 2, a rotation connecting structure 3, an eccentric shaft 4, and a spinning roller 5. Wherein, the upper end of the upper rotating wheel arm 1 is connected with a tool rest (not shown in the figure) of the spinning machine tool through a bolt, and is generally in a fixed state and is not easy to replace and disassemble; a counter bore 11 is arranged at the lower end of the upper rotating wheel arm 1, and a rotating connection structure mounting hole 12 and an eccentric shaft mounting hole 13 are formed in the side wall of the counter bore 11; a boss 21 is arranged at the upper end of the lower rotary wheel arm 2, the boss 21 extends into the counter bore 11, and a rotary connecting structure mounting groove 211 and an eccentric shaft inserting hole 212 which are respectively matched with the rotary connecting structure mounting hole 12 and the eccentric shaft mounting hole 13 are arranged on the boss 21; the rotary wheel 5 is detachably arranged at the lower end of the lower rotary wheel arm 2; the rotary connecting structure 3 is arranged in the rotary connecting structure mounting hole 12 and the rotary connecting structure mounting groove 211, and the boss 21 is rotatably mounted in the counter bore 11; the eccentric shaft 4 is inserted into the eccentric shaft mounting hole 13 and the eccentric shaft insertion hole 212, and the boss 21 is fixedly mounted in the counterbore 11.

According to the spinning wheel system of the spinning machine tool, the upper spinning wheel arm 1 and the lower spinning wheel arm 2 are arranged, the counter bore 11 and the boss 21 are matched with each other, the upper spinning wheel arm 1 and the lower spinning wheel arm 2 are rotatably connected through the rotating connection structure 3, and the upper spinning wheel arm 1 and the lower spinning wheel arm 2 are fixedly connected through the eccentric shaft 4; when the rotating wheel 5 needs to be reversed, hoisting equipment is not needed, only the eccentric shaft 4 needs to be taken down, the upper rotating wheel arm 1 and the lower rotating wheel arm 2 are rotatably connected through the rotating connecting structure 3, then the lower rotating wheel arm 2 is rotated to a proper position, and then the eccentric shaft 4 is installed; when the spinning wheel 5 needs to be replaced, the spinning wheel 5 is detached from the spinning wheel arm 2 to replace the spinning wheel 5 with a new spinning wheel without detaching the spinning wheel arm 2. This spinning wheel system does not need lifting device can realize spinning wheel 5's switching-over, need not to take off down spinning wheel arm 2 when switching-over and change spinning wheel 5, can effectively reduce installation time, uses manpower sparingly, improves spinning work efficiency.

Specifically, referring to fig. 19 and 20, in the present embodiment, the eccentric shaft 4 includes a flange portion 41, a large shaft segment 42, and a small shaft segment 43. A plurality of screw mounting holes 411 are uniformly distributed on the flange part 41 along the circumferential direction thereof, threaded holes corresponding to the screw mounting holes 411 are formed at the lower end of the upper swing arm 1, and the eccentric shaft 4 can be fixedly mounted at the lower end of the upper swing arm 1 through screws; a hexagon socket head 412 is arranged in the middle of the flange part 41, and a hexagon socket wrench can be used for extending into the hexagon socket head 412 to rotate the eccentric shaft 4; one end of the large shaft section 42 is connected to the flange portion 41, the other end of the large shaft section 42 is connected to the small shaft section 43, the diameter of the large shaft section 42 is larger than that of the small shaft section 43, and the small shaft section 43 is eccentric with respect to the large shaft section 42, that is, the shaft centers of the large shaft section 42 and the small shaft section 43 are not collinear.

Further, referring to fig. 2 and 4, the large shaft section 42 is inserted into the eccentric shaft mounting hole 13, and the small shaft section 43 is inserted into the eccentric shaft insertion hole 212; a gap is reserved between the top surface of the boss 21 and the top surface of the counter bore 11; when the eccentric shaft 4 is rotated, the upper end shoulder 22 of the lower rotor arm 2 can be brought into contact with or separated from the lower end bottom surface 14 of the upper rotor arm 1. With the arrangement, when the eccentric shaft 4 is rotated, the lower rotary wheel arm 2 can move upwards, so that the upper end shoulder 22 of the lower rotary wheel arm 2 is in end surface contact with the lower end bottom surface 14 of the upper rotary wheel arm 1, the upper rotary wheel arm 1 and the lower rotary wheel arm 2 are stressed together, and the axial force bears the load through the shoulder and the eccentric shaft 4 during operation; when the eccentric shaft 4 is rotated reversely, the upper end shoulder 22 of the lower rotor arm 2 and the lower end bottom surface 14 of the upper rotor arm 1 can be separated, and at this time, the eccentric shaft 4 can be detached by bearing the weight of the lower rotor arm 2 through the rotating connecting structure 3. Through the structural arrangement of the eccentric shaft 4, the tightness of the upper spinning wheel arm 1 and the lower spinning wheel arm 2 can be realized by utilizing the rotation of the eccentric shaft 4, and the transmission of force in the spinning process is realized through the abutting or the separation of the upper end shaft shoulder 22 and the lower end bottom surface 14.

Specifically, referring to fig. 2 and 4, in the present embodiment, two eccentric shaft mounting holes 13 are uniformly distributed on the side wall of the counterbore 11 along the circumferential direction thereof (as shown in fig. 4, the two eccentric shaft mounting holes 13 can be considered to be communicated with each other), two eccentric shaft insertion holes 212 are uniformly distributed on the boss 21 along the circumferential direction thereof, the number of the eccentric shafts 4 is two, and the two eccentric shafts 4 are uniformly distributed along the circumferential direction of the boss 21 and penetrate through the corresponding eccentric shaft mounting holes 13 and the corresponding eccentric shaft insertion holes 212. So set up, can make and go up the atress more balanced between runner arm 1 and the lower runner arm 2, connect more stably.

Specifically, referring to fig. 3 and 14, in the present embodiment, the rotational connection structure 3 includes the rolling bodies 31 and the rolling body adjustment structure 32. Wherein, the rolling body 31 is rollably disposed in the rotational connection structure mounting groove 211; the rolling element adjusting structure 32 is installed in the rotating connection structure installation hole 12 for adjusting the pre-tightening force of the rolling element 31. The upper rotating wheel arm 1 is rotatably connected with the lower rotating wheel arm 2 through the rolling body 31, the reversing of the rotating wheel 5 can be realized by utilizing the rolling of the rolling body 31, and the reversing is more labor-saving by utilizing rolling friction. The rolling elements 31 may be steel balls.

Further, referring to fig. 3 and 14, in the present embodiment, the rolling element adjusting structure 32 includes a top plug 321, an adjusting screw 322, and an adjusting spring 323. The adjusting screw 322 is in threaded connection with the rotating connecting structure mounting hole 12, an inner hexagonal groove 3221 is arranged on the adjusting screw 322, a hemispherical groove 3211 is arranged on one side of the top plug 321, the rolling element 31 is arranged in the hemispherical groove 3211 and the rotating connecting structure mounting groove 211 in a rolling manner, a greasing threaded hole 3212 is arranged on the other side of the top plug 321, the greasing threaded hole 3212 is communicated with the hemispherical groove 3211, and two ends of the adjusting spring 323 are respectively connected with the top plug 321 and the adjusting screw 322. The arrangement is that the rolling body 31 is arranged in the hemispherical groove 3211 and the rotary connecting structure mounting groove 211 in a rolling manner, so that the rotary connection between the upper rotary wheel arm 1 and the lower rotary wheel arm 2 is realized; through the greasing threaded hole 3212, on one hand, lubricating grease can be filled into the rolling element 31 to reduce the friction force between the rolling element 31 and the hemispherical groove 3211 and the rotating connection structure mounting groove 211, and on the other hand, the top plug 321 can be conveniently detached; the inner hexagonal groove 3221 is arranged on the adjusting screw 322, so that the pre-tightening force of the rolling body 31 can be conveniently adjusted; when the pre-tightening force of the rolling body 31 needs to be adjusted, only a hexagon wrench is needed to rotate the adjusting screw 322 so as to adjust the acting force of the adjusting spring 323 acting on the top plug 321. Therefore, the pre-tightening force of the rolling body 31 can be adjusted by rotating the adjusting screw 322, so that the rolling body 31 is in a flexible state when being connected with the upper roller arm 1 and the lower roller arm 2, and meanwhile, the pre-tightening force can be applied to the adjusting screw 322 to achieve anti-loosening of the adjusting screw 322.

Further, referring to fig. 17 and 18, in this embodiment, an annular groove 3213 is further disposed on a side of the top plug 321 close to the adjusting screw 322, a sinking groove 3222 is further disposed on a side of the adjusting screw 322 close to the top plug 321, one end of the adjusting spring 323 is disposed in the annular groove 3213, and the other end of the adjusting spring 323 is disposed in the sinking groove 3222. The two ends of the adjusting spring 323 are respectively fixed in the circumferential direction and the axial direction through the sinking groove 3222 and the annular groove 3213, so that the stability of connection and force transmission among the top plug 321, the adjusting screw 322 and the adjusting spring 323 is improved.

Specifically, referring to fig. 5 and 10, in the present embodiment, the rotating connection structure mounting grooves 211 are circumferentially arranged along the boss 21, four rotating connection structure mounting holes 12 are circumferentially and uniformly arranged on the side wall of the counter bore 11, the number of the rotating connection structures 3 is four, and four rotating connection structures 3 are circumferentially and uniformly arranged along the boss 21. With this arrangement, the stability and reliability of the rotational connection between the upper and

lower swivel arms

1 and 2 can be improved. Specifically, the rotation coupling structure mounting groove 211 is provided above the eccentric shaft insertion hole 212, and the rotation coupling structure mounting hole 12 is provided above the eccentric shaft mounting hole 13.

It should be noted that the fit of different clearance sizes needs to be taken care of during the entire design process of the spinning wheel system of the present invention. Wherein, the clearance between the top surface of the counter bore 11 of the upper rotor arm 1 and the top surface of the boss 21 of the lower rotor arm 2 is larger than the eccentric distance of the eccentric shaft 4; the distance tolerance from the rotating wheel mounting hole to the shaft shoulder in the lower rotating wheel arm 2 is smaller than the eccentric distance of the eccentric shaft 4; the gap between the rolling bodies 31 and the rotational connection structure mounting groove 211 (raceway) should be greater than the eccentric distance of the eccentric shaft 4 and smaller than the gap between the top surface of the counterbore 11 of the upper rotor arm 1 and the top surface of the boss 21 of the lower rotor arm 2.

When the rotary wheel system is replaced, the invention is mainly divided into the following three conditions:

the first condition is that the rotary wheel 5 is reversed, and the steps are as follows:

the first step is as follows: unscrewing screws on the left and right eccentric shafts 4 by using an inner hexagonal wrench, then rotating the eccentric shafts 4 by using the inner hexagonal wrench, pulling out the eccentric shafts 4 after loosening, wherein the rotating connection structure mounting groove 211 in the lower spinning wheel arm 2 is contacted with the rolling body 31, the rolling body 31 bears the weight of the lower spinning wheel arm 2, and the lower spinning wheel arm 2 is manually rotated until the lower spinning wheel arm 2 and the spinning wheel 5 finish reversing;

the second step is that: after the reversing of the lower rotor arm 2 is completed, the eccentric shafts 4 on the left side and the right side are inserted, then the eccentric shafts 4 are respectively rotated until the upper end shoulder 22 of the lower rotor arm 2 is tightly attached and abutted to the lower end bottom surface 14 of the upper rotor arm 1, and the eccentric shafts 4 are not rotated, at this time, the rolling bodies 31 and the rotating connection structure mounting grooves 211 are separated from contact, mounting screws (the number of the mounting screws can be selected according to needs, but must be uniformly distributed and mounted) on the flange part 41 of the eccentric shafts 4 are screwed, and the reversing and fixing of the rotor are completed. In this state, when the rotary wheel 5 works, the main load bearing parts are the lower end bottom surface 14 of the upper rotary wheel arm 1 and the upper end shaft shoulder 22 of the lower rotary wheel arm 2, and the eccentric shaft 4 bears certain load. The schematic diagrams before and after the turning of the spinning wheel 5 are respectively shown in fig. 21 and fig. 22.

The second case is to replace the spinning wheel 5 with a new one, which comprises the following steps:

the first step is as follows: the nut near the spinning wheel 5 in the lower spinning wheel arm 2 is removed, and the spinning wheel 5 is taken out;

the second step is that: and (5) installing a new spinning wheel 5 and screwing the axial fixing nut to finish the replacement of the spinning wheel 5.

The third situation is to replace the new lower rotating wheel arm 2, and the steps are as follows:

the first step is as follows: unscrewing the adjusting screw 322 in the rolling element adjusting structure 32 by using an allen key, then taking out the adjusting screw 322 and the adjusting spring 323, and then taking out the top plug 321 and the rolling element 31;

the second step is that: unscrewing screws on the left eccentric shaft 4 and the right eccentric shaft 4 by using an inner hexagonal wrench, then extending the inner hexagonal wrench into the inner hexagonal counter bore 412 to rotate the eccentric shaft 4, pulling out the eccentric shaft 4 after loosening, and then taking out the lower rotor arm 2;

the third step: inserting a boss 21 of a new lower rotor arm 2 into a counter bore 11 of an upper rotor arm 1, then inserting an eccentric shaft 4, and then installing a rolling body 31 and a rolling body adjusting structure 32.

In general, the spinning wheel system of the invention fully considers the structural characteristics of a spinning wheel frame and a spinning wheel system of a spinning machine tool and the loading condition of the spinning wheel system in the whole spinning process, and splits the spinning wheel frame in the spinning wheel system into an upper spinning wheel arm 1 and a lower spinning wheel arm 2, wherein the upper spinning wheel arm 1 is always fixed on a tool rest of the spinning machine tool, a spinning wheel 5 is detachably arranged on the lower spinning wheel arm 2, and the lower spinning wheel arm 2 is matched with a counter bore 11 through a boss 21 and is connected with an eccentric shaft 4 through a rotary connecting structure 3; when the rotary wheel 5 is reversed, the rolling rotation of the lower rotary wheel arm 2 can be realized by utilizing the rolling body 31 between the upper rotary wheel arm 1 and the lower rotary wheel arm 2, so that the reversing of the rotary wheel 5 is realized; the tightness adjustment of the upper spinning wheel arm 1 and the lower spinning wheel arm 2 can be realized by rotating the eccentric shaft 4, and the force transmission in the spinning process is realized by the abutting or the separation of the upper end shaft shoulder 22 and the lower end bottom surface 14. The rotary wheel system can realize the reversing of the rotary wheel 5 without hoisting equipment, and the lower rotary wheel arm 2 is not required to be taken down when the rotary wheel 5 is reversed and replaced, so that the installation time of the equipment is effectively reduced, the manpower is saved, and the spinning efficiency is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 spinning wheel system of a spinning machine, comprising:

the upper end of the upper spinning wheel arm (1) is connected with a tool rest of a spinning machine tool, a counter bore (11) is formed in the lower end of the upper spinning wheel arm (1), and a rotary connecting structure mounting hole (12) and an eccentric shaft mounting hole (13) are formed in the side wall of the counter bore (11);

the upper end of the lower rotating wheel arm (2) is provided with a boss (21), the boss (21) extends into the counter bore (11), the boss (21) is provided with a rotating connection structure mounting groove (211) and an eccentric shaft insertion hole (212), and the lower rotating wheel arm (2) is detachably provided with a rotating wheel (5);

the rotary connecting structure (3) is arranged in the rotary connecting structure mounting hole (12) and the rotary connecting structure mounting groove (211), and the boss (21) is rotatably mounted in the counter bore (11);

the eccentric shaft (4) penetrates through the eccentric shaft mounting hole (13) and the eccentric shaft insertion hole (212), and the boss (21) is fixedly mounted in the counter bore (11).

2. The spinning wheel system of a spinning machine tool according to claim 1, wherein the eccentric shaft (4) comprises a flange portion (41), a large shaft section (42) and a small shaft section (43), a plurality of screw mounting holes (411) are uniformly distributed on the flange portion (41) along the circumferential direction, a hexagon socket head (412) is arranged in the middle of the flange portion (41), one end of the large shaft section (42) is connected with the flange portion (41), the other end of the large shaft section (42) is connected with the small shaft section (43), the diameter of the large shaft section (42) is larger than that of the small shaft section (43), and the axes of the large shaft section (42) and the small shaft section (43) are not collinear.

3. The spinning wheel system of a spinning machine according to claim 2, characterized in that the large shaft section (42) is inserted into the eccentric shaft mounting hole (13), the small shaft section (43) is inserted into the eccentric shaft insertion hole (212), and a gap is left between the top surface of the boss (21) and the top surface of the counterbore (11); when the eccentric shaft (4) is rotated, the upper end shaft shoulder (22) of the lower rotary wheel arm (2) can be abutted against or separated from the lower end bottom surface (14) of the upper rotary wheel arm (1).

4. The spinning roller system of a spinning machine tool according to claim 2, wherein a plurality of eccentric shaft mounting holes (13) are uniformly formed in the side wall of the counter bore (11) along the circumferential direction, a plurality of eccentric shaft insertion holes (212) are uniformly formed in the boss (21) along the circumferential direction, the number of the eccentric shafts (4) is multiple, and a plurality of the eccentric shafts (4) are uniformly formed along the circumferential direction of the boss (21).

5. Spinning wheel system of a spinning machine according to any of claims 1 to 4, characterised in that the rotating connection (3) comprises rolling bodies (31) and rolling body adjustment structures (32), the rolling bodies (31) being rollably arranged in the rotating connection mounting groove (211); the rolling body adjusting structure (32) is installed in the rotating connecting structure installation hole (12) so as to adjust the pre-tightening force of the rolling body (31).

6. Spinning wheel system of a spinning machine according to claim 5, characterized in that the rolling body adjustment structure (32) comprises a top plug (321), an adjusting screw (322) and an adjusting spring (323), the adjusting screw (322) is in threaded connection with the mounting hole (12) of the rotary connecting structure, an inner hexagonal groove (3221) is arranged on the adjusting screw (322), a hemispherical groove (3211) is arranged on one side of the top plug (321), the rolling bodies (31) are arranged in the hemispherical grooves (3211) and the rotary connecting structure mounting grooves (211) in a rolling manner, the other side of the top plug (321) is provided with a greasing threaded hole (3212), the greasing threaded hole (3212) is communicated with the hemispherical groove (3211), and two ends of the adjusting spring (323) are respectively connected with the top plug (321) and the adjusting screw (322).

7. The spinning wheel system of a spinning machine tool according to claim 6, characterized in that an annular groove (3213) is formed in the top plug (321), a sinking groove (3222) is formed in the adjusting screw (322), one end of the adjusting spring (323) is placed in the annular groove (3213), and the other end of the adjusting spring (323) is placed in the sinking groove (3222).

8. The spinning wheel system of a spinning machine tool according to claim 5, characterized in that the rotating connecting structure mounting grooves (211) are circumferentially arranged along the boss (21), a plurality of the rotating connecting structure mounting holes (12) are circumferentially and uniformly arranged on the side wall of the counter bore (11), the number of the rotating connecting structures (3) is multiple, and the plurality of the rotating connecting structures (3) are circumferentially and uniformly arranged along the boss (21).

9. Method for applying the spinning roller system of spinning machine according to any of claims 1 to 8, characterized in that when reversing the spinning roller (5), the eccentric shaft (4) is removed, the lower spinning roller arm (2) is rotated until the spinning roller (5) is rotated to the right position, and then the eccentric shaft (4) is inserted to fixedly connect the lower spinning roller arm (2) with the upper spinning roller arm (1).

10. The method of applying a spinning roller system of a spinning machine according to any one of claims 1 to 8, characterized in that, when replacing the new lower spinning roller arm (2), the rotating connecting structure (3) is removed, the eccentric shaft (4) is removed, the lower spinning roller arm (2) is removed from the upper spinning roller arm (1), the new lower spinning roller arm (2) is replaced, and the rotating connecting structure (3) and the eccentric shaft (4) are installed to connect the new lower spinning roller arm (2) to the lower end of the upper spinning roller arm (1).