CN114352639A - Laying head - Google Patents
Laying head Download PDFInfo
- Publication number
- CN114352639A CN114352639A CN202111642282.1A CN202111642282A CN114352639A CN 114352639 A CN114352639 A CN 114352639A CN 202111642282 A CN202111642282 A CN 202111642282A CN 114352639 A CN114352639 A CN 114352639A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- oil film
- shaft
- bearing
- laying head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to a laying head, comprising: a body; the rotating shaft is rotatably arranged on the machine body and comprises a shaft body and a shaft through hole which penetrates from one end of the shaft body to the other end; one end of the rotating shaft is an outlet end suitable for mounting a spinning head, and the end far away from the outlet end is an inlet end; at least one oil film bearing arranged between the rotating shaft and the machine body and positioned at the outlet end; at least one first rolling bearing arranged between the rotating shaft and the machine body and positioned at the outlet end; and the driving device is in transmission connection with the rotating shaft and is used for driving the rotating shaft to rotate. The invention can effectively restrain the vibration of the rotating shaft through the oil film bearing, so that the mechanical friction and abrasion between the rotating shaft and the bearing can be greatly reduced; and when the oil film bearing is lack of oil or the oil supply is insufficient, the first rolling bearing is used for supporting, so that the problem that the whole laying head equipment is damaged when the oil film is damaged due to the fact that the oil film of the oil film bearing is not formed or lack of oil is solved.
Description
Technical Field
The invention relates to the technical field of high-speed wire rod production equipment, in particular to a laying head.
Background
The laying head is one of the key equipments for high-speed wire production, and uses its special-shaped structure and a certain rotating speed to change the straight wire moving at high speed into a coil with stable coil shape and uniform spacing.
A laying head generally comprises a body, a motor, a transmission, a hollow shaft member, a laying pipe, a laying head, and the like. The hollow shaft part and the spinning head are both arranged on the machine body, and the hollow shaft part generally comprises a hollow shaft, a bearing, a flange and the like arranged on the hollow shaft. The hollow shaft is rotatably arranged in the machine body, and the spinning head is arranged at one end of the hollow shaft and used for fixing the spinning pipe. When the laying head works, the motor drives the transmission mechanism to move, the transmission mechanism drives the hollow shaft to rotate, the hollow shaft drives the laying head and the laying pipe to rotate together, so that wire rods entering the hollow shaft can be laid out of coils along the circumferential tangential direction of the outlet of the laying pipe through the rotating laying pipe and stably poured on an air-cooled roller table to form continuous coils.
The hollow shaft is provided with a spinning head, one end of which is an outlet end, and the other end of which is far away from the spinning head is an inlet end. Rolling bearings are typically provided at the inlet and outlet ends of the hollow shaft to support rotation of the hollow shaft.
Since the rotating parts (combination of hollow shaft, laying head, laying pipe and the member to be rolled in the laying pipe) of the laying head during operation are not axially symmetric rotating bodies, the center of mass inevitably deviates from the center of rotation, and centrifugal force is generated, causing vibration during operation of the laying head. The rolling bearing at the outlet end is of a rigid structure, and has no damping effect, so that the rotating center of the rotating component cannot be stably operated at a fixed position, the spinning is disordered (namely, the spinning ring shape is unstable), and the service life of the rolling bearing is short.
Therefore, in the conventional laying head, only the inlet end of the hollow shaft is provided with the rolling bearing, the outlet end of the hollow shaft is provided with the oil film bearing, the oil film bearing can timely respond to the change of the centrifugal force generated by the dynamic unbalance of the rotating shaft, when the rotating speed of the rotating shaft approaches to the limit rotating speed, the centrifugal force is increasingly large, and the position of the clearance is continuously changed, the bearing oil film of the oil film bearing can generate increasingly large radial force for resisting the deviation of the rotating shaft, namely, the elastic pre-tightening effect is realized, so that the vibration of the hollow shaft can be effectively inhibited, the hollow shaft can not cause destructive extrusion and impact on the bearing, and the mechanical friction and abrasion between the hollow shaft and the bearing can be greatly reduced.
However, oil film bearings require oil at all times during operation, and can cause damage to the laying head equipment if there is a lack of oil or the supply of oil is insufficient to support the load.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defects that the prior art laying head cannot simultaneously overcome the vibration of the hollow shaft and the damage of the laying head equipment, so as to provide a laying head which can overcome the vibration of the hollow shaft and simultaneously avoid the damage of the laying head equipment.
In order to solve the above problems, the present invention provides a laying head comprising:
a body;
the rotating shaft is rotatably arranged on the machine body and comprises a shaft body and a shaft through hole which penetrates from one end of the shaft body to the other end of the shaft body; one end of the rotating shaft is an outlet end suitable for mounting a laying head, and the end far away from the outlet end is an inlet end;
at least one oil film bearing arranged between the rotating shaft and the machine body and positioned at the outlet end;
at least one first rolling bearing arranged between the rotating shaft and the machine body and positioned at the outlet end;
and the driving device is in transmission connection with the rotating shaft and is used for driving the rotating shaft to rotate.
Optionally, the distance between the end surface of the first rolling bearing facing the oil film bearing and the end surface of the oil film bearing facing the first rolling bearing is S, and S is greater than 0 mm.
Optionally, if the outer diameter of the first rolling bearing is B, S is satisfied, and S is more than or equal to 0.015B and less than or equal to 0.025B.
Optionally, the outer diameter of the rotating shaft at the position where the oil film bearing is installed is E, the gap of the oil film bearing is s, and the clearance of the first rolling bearing is C, then s is satisfied, and s is greater than or equal to 0.001E and less than or equal to 0.0013E; c is more than or equal to 0.65s and less than or equal to 0.75 s.
Optionally, the first rolling bearing is disposed on a side of the oil film bearing away from the outlet end.
Optionally, the laying head provided by the present invention further includes at least one second rolling bearing, and the second rolling bearing is disposed between the rotating shaft and the machine body and located at the inlet end.
Optionally, the length of the rotating shaft is L, and the distance from the centroid of the oil film bearing to the outlet end face is L1The distance between the centroid of the second rolling bearing and the end face of the inlet end is l2The distance between the gravity center of the rotating shaft and the end face of the outlet end is l3The acting point of the resultant force applied to the rotating shaft by the driving device is at a distance l from the end face of the outlet end4The distance between the action point of the resultant force applied to the rotating shaft by the spinning head and the end face of the outlet end is l, and l is1Satisfy, l1≤(13L-13l2-37l+22l3+28l4)/100。
The radius of the shaft through hole at the end face of the outlet end is r, and the radius of one end, close to the outlet end, of the hole wall of the part, corresponding to the oil film bearing, of the shaft through hole is r1The angle between the hole wall of the shaft through hole at the outlet end and the axis of the rotating shaft is alpha, the width of the oil film bearing is D, and l is1Satisfy, l1≥(r-r1)cotα+D/2。
Alternatively,/2L is not more than 50mm2≤300mm。
Optionally, the drive device comprises:
a power unit having an output shaft that outputs rotational power;
and the transmission mechanism is connected with the output shaft and moves under the driving of the output shaft, and the transmission mechanism is in transmission connection with the rotating shaft.
The invention has the following advantages:
1. the invention provides a laying head, wherein an oil film bearing and a first rolling bearing are arranged at the outlet end of a rotating shaft at the same time, when the laying head is started or at the moment of oil break of the oil film bearing, the rotating shaft of the laying head and a machine body are supported by the first rolling bearing, and when the laying head is started and oil supply of the oil film bearing is normal, the first rolling bearing rotates along with the rotating shaft but does not bear force, namely, the first rolling bearing plays a supporting role only after the oil film of the oil film bearing is not formed or broken. Therefore, the vibration of the rotating shaft can be effectively inhibited through the oil film bearing, so that the rotating shaft can not cause destructive extrusion and impact on the bearing any more, and the mechanical friction and abrasion between the rotating shaft and the bearing can be greatly reduced; and when the oil film bearing is lack of oil or the oil supply is insufficient, the first rolling bearing is used for supporting, so that the problem that the whole laying head equipment is damaged when the oil film is damaged due to the fact that the oil film of the oil film bearing is not formed or lack of oil is solved.
2. According to the laying head provided by the invention, the second rolling bearing is arranged at the inlet end, so that a rigid pre-tightening effect can be achieved, and the phenomenon that an oil film bearing fails due to the fact that a bearing oil film is damaged by pressing down when a rotating shaft is static and large vibration at the moment when the rotating shaft rotates is prevented.
3. According to the laying head provided by the invention, the outer diameter of the rotating shaft at the position where the oil film bearing is installed is E, the gap of the oil film bearing is s, and the clearance of the first rolling bearing is C, so that s is satisfied, and s is not less than 0.001E and not more than 0.0013E; c is more than or equal to 0.65s and less than or equal to 0.75 s. Therefore, when the minimum oil film thickness of the oil film bearing reaches half of the play value of the first rolling bearing, the first rolling bearing starts to bear, so that the minimum oil film thickness of the oil film bearing can be controlled within a certain range, the oil film bearing burning accident caused by the reduction of the minimum oil film thickness of the oil film bearing due to oil shortage, oil leakage and the like is prevented, and the service life of the laying head is greatly prolonged.
4. The laying head provided by the invention is characterized in that1Satisfy, l1≤(13L-13l2-37l+22l3+28l4) The radial force borne by the oil film bearing can be minimized, on one hand, the oil film bearing is not easy to damage, and the service life of the oil film bearing is prolonged; on the other hand, the vibration of the rotating shaft can be reduced, the operation of the laying head is more stable, and better laying can be realizedThe spinning effect can be improved, or the rotating speed of the rotating shaft can be improved, so that the spinning efficiency of the spinning machine is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a cross-sectional view of a portion of the construction of the laying head of the present invention;
description of reference numerals:
1-machine body, 21-shaft body, 22-shaft through hole, 23-outlet end, 24-inlet end, 25-oil channel, 26-oil inlet, 3-oil film bearing, 4-first rolling bearing, 51-transmission shaft, 52-first transmission gear, 53-second transmission gear and 6-second rolling bearing.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the laying head according to the present embodiment includes a machine body 1, a rotary shaft, a laying head, a laying pipe, an oil film bearing 3, a first rolling bearing 4, and a drive device.
The rotating shaft is rotatably arranged on the machine body 1, and an oil film bearing 3 and a first rolling bearing 4 are arranged between the rotating shaft and the machine body 1. The rotating shaft includes a shaft body 21 and a shaft through hole 22 penetrating from one end to the other end of the shaft body 21. One end of the rotating shaft is an outlet end 23 for mounting a laying head; the end of the axis of rotation remote from the outlet end 23 is the inlet end 24. The laying pipe is disposed in the shaft through hole 22. In use of the laying head, the member to be rolled enters the laying pipe at the inlet end 24 and exits the laying pipe at the outlet end 23.
The oil film bearing 3 and the first rolling bearing 4 are located at the outlet end 23 of the rotating shaft, respectively.
The driving device comprises a power device and a transmission mechanism.
The power unit has an output shaft that outputs rotational power. The specific structural form of the power device is not limited, and the power device in the present embodiment is a motor.
The transmission mechanism is connected with the output shaft and moves under the driving of the output shaft, and the transmission mechanism is in transmission connection with the rotating shaft. The specific structural form of the transmission mechanism is not limited, and in this embodiment, the transmission mechanism includes a transmission shaft 51 disposed on the machine body 1, a first transmission gear 52 fixedly disposed on the transmission shaft 51, and a second transmission gear 53 fixedly disposed on the rotation shaft and engaged with the first transmission gear 52, wherein the transmission shaft 51 is connected with the output shaft. In the present embodiment, the transmission shaft 51 is perpendicular to the rotation shaft, the first transmission gear 52 and the second transmission gear 53 are bevel gears, respectively, and the first transmission gear 52 and the second transmission gear 53 together form a bevel gear set. As an alternative embodiment, the transmission shaft 51 may be parallel to the rotation axis, and the first transmission gear 52 and the second transmission gear 53 may be cylindrical gears, for example, spur gears, helical gears, or herringbone gears.
When the laying head works, an output shaft of the motor drives the transmission shaft 51 to rotate, the transmission shaft 51 drives the first transmission gear 52 to rotate, the first transmission gear 52 drives the second transmission gear 53 meshed with the first transmission gear to rotate, the second transmission gear 53 drives the rotation shaft to rotate, the rotation shaft drives the laying head and the laying pipe to rotate together, and a to-be-rolled piece entering the rotation shaft is enabled to be laid out with a coil along the circumferential tangential direction of an outlet of the laying pipe through the rotating laying pipe and to be stably poured on an air cooling roller way to form continuous coils.
By providing both the oil film bearing 3 and the first rolling bearing 4 at the outlet end 23 of the rotating shaft, when the laying head is started or when the oil film bearing 3 is cut off, the rotating shaft of the laying head and the machine body 1 are supported by the first rolling bearing 4, and when the laying head is started and the oil supply to the oil film bearing 3 is normal, the first rolling bearing 4 rotates with the rotating shaft but does not bear a force, that is, the first rolling bearing 4 exerts a supporting function only after the oil film of the oil film bearing 3 is not formed or broken. Therefore, the vibration of the rotating shaft can be effectively inhibited through the oil film bearing 3, so that the rotating shaft can not cause destructive extrusion and impact on the bearing any more, and the mechanical friction and abrasion between the rotating shaft and the bearing can be greatly reduced; when the oil film bearing 3 is out of oil or the oil supply is insufficient, the first rolling bearing 4 can be used for supporting, so that the problem that the whole laying head equipment is damaged when the oil film is broken due to the fact that the oil film of the oil film bearing 3 is not formed or the oil is out of oil is solved.
The distance s between the first rolling bearing 4 and the oil film bearing 3 is not limited, and in order to obtain a better auxiliary supporting effect of the first rolling bearing 4, the closer the first rolling bearing 4 is to the oil film bearing 3, the better. Alternatively, s >0 mm.
Because the lubricating oil entering the oil film bearing 3 flows out from two ends of the oil film bearing 3 and the first rolling bearing 4 is required to be assembled and positioned on a rotating shaft, the first rolling bearing 4 cannot be tightly attached to the oil film bearing 3, and preferably, S is more than or equal to 0.015B and less than or equal to 0.025B. Where B is the outer diameter of the first rolling bearing 4. In the present embodiment, S is 0.02B. As an alternative embodiment, S may be 0.015B, or 0.025B.
The outer diameter of the rotating shaft at the position where the oil film bearing is installed is E, the clearance of the oil film bearing 3 is s, and the clearance of the first rolling bearing 4 is C, so that in the embodiment, s is satisfied, and s is more than or equal to 0.001E and less than or equal to 0.0013E; c is more than or equal to 0.65s and less than or equal to 0.75 s. Therefore, when the minimum oil film thickness of the oil film bearing 3 reaches half of the play value of the first rolling bearing 4, the first rolling bearing 4 starts to bear the load, so that the minimum oil film thickness of the oil film bearing 3 can be controlled within a certain range, the burning accident of the oil film bearing 3 caused by the reduction of the minimum oil film thickness of the oil film bearing 3 due to oil shortage, oil leakage and the like is prevented, and the service life of the laying head is greatly prolonged. As an alternative embodiment, it is also possible to satisfy other relations among s, C, and E, so that the first rolling bearing 4 starts to bear load when the minimum oil film thickness of the oil film bearing 3 reaches a setting such as one third or three fifths of the play value of the first rolling bearing 4.
In the present embodiment, the first rolling bearing 4 is provided on the side of the oil film bearing 3 away from the outlet end 23.
The laying head according to the present embodiment further includes a second rolling bearing 6, and the second rolling bearing 6 is provided between the rotary shaft and the machine body 1 and is located at the inlet end 24 of the rotary shaft. The specific number of the second rolling bearings 6 is not limited, and may be, for example, one or two. The second rolling bearing 6 in the present embodiment has two. The second rolling bearing 6 is arranged at the inlet end 24, so that a rigid pre-tightening effect can be achieved, and the oil film bearing 3 is prevented from failing due to the fact that a bearing oil film is damaged by pressing down when the rotating shaft is static and large vibration in the moment when the rotating shaft rotates.
The length of the rotating shaft is L, and the distance from the centroid of the oil film bearing 3 to the end face of the outlet end 23 is L1The distance between the centroid of the second rolling bearing 6 and the end surface of the inlet end 24 is l2(Note that, when the second rolling bearing 6 has two or more, l2The centroid of the combination of two or more second rolling bearings 6 is a distance from the end face of the inlet end 24), the center of gravity of the rotating shaft is a distance l from the end face of the outlet end 233The acting point of the resultant force applied to the rotating shaft by the driving device is at a distance l from the end face of the outlet end 234The distance from the action point of the resultant force applied to the rotating shaft by the laying head to the end face of the outlet end 23 is l, then l1Satisfy, l1≤(13L-13l2-37l+22l3+28l4)/100. This enables the oil film bearing 3 to be subjected to radial forces F1On one hand, the oil film bearing 3 is not easy to damage, and the service life of the oil film bearing 3 is prolonged; on the other hand, the vibration of the rotating shaft can be reduced, the operation of the laying head is more stable, the rotating speed of the rotating shaft can be increased to 1600r/min-2500r/min, and the laying efficiency of the laying head is further improved.
The effect is obtained by performing kinematic simulation analysis on the spinning machine through multi-body dynamics simulation software ADAMS. Taking the width of the second rolling bearing 6 as 46mm, the width of the oil film bearing 3 as 200mm, the radius of the end surface of the shaft through hole 22 at the outlet end 23 as 251mm, the angle of the hole wall of the shaft through hole 22 at the outlet end 23 relative to the axis of the rotating shaft as 25 degrees, the weight of the spinning head as 839kg, the combined weight of the hollow shaft and the bevel gear as 491kg, the maximum power of the driving motor as 355kW, and the maximum rotation speed of the spinning head as 2200r/min as examples, the radial force F received by the oil film bearing 3 of the spinning machine is taken as122000N is used as a judgment standard. The specific analytical data are as follows (the units of the distance parameters in the table are mm, F1Unit of (d) is N):
from the comparison of the above analysis results, when l1Satisfy, l1≤(13L-13l2-37l+22l3+28l4) The radial force F to which the oil film bearing 3 is subjected can be obtained by the equation of/1001And the minimum, thereby the oil film bearing 3 is not easy to damage, and the vibration of the rotating shaft is reduced, and the spinning efficiency of the spinning machine is improved.
Further, the radius of the shaft through hole 22 at the end face of the outlet end 23 is r, that is, r is the opening radius of the outlet end 23. The radius of one end of the hole wall of the part of the shaft through hole 22 corresponding to the oil film bearing 3 and close to the outlet end 23 is r1The angle between the hole wall of the shaft through hole 23 at the outlet end 23 and the axis of the rotating shaft is alpha, and the width of the oil film bearing 3 is D, then l1Satisfy, l1≥(r-r1)cotα+D/2。
The value range of r is not limited, and the general specification of the laying head is met. Optionally, r is more than or equal to 240mm and less than or equal to 260 mm. In the present embodiment, r is 251 mm. Alternatively, r may be 240mm or 260 mm.
2 α is the opening angle of outlet end 23. The value range of alpha is not limited, and the method can meet the general specification of a laying head. Alternatively, 40 ≦ 2 α ≦ 60 °, i.e., 20 ≦ α ≦ 30 °. In the present embodiment, 2 α is 50 °, that is, α is 25 °. As an alternative embodiment, α may be 20 ° or α may be 30 °.
The width of the oil film bearing 3 is D, and optionally, D is more than or equal to 190mm and less than or equal to 220 mm. In the present embodiment, D is 200 mm. As an alternative embodiment, D may be 190mm or D220 mm.
To l2Is not limited, in the present embodiment, optionally, 50mm ≦ l2Less than or equal to 300 mm. In the present embodiment, |2As an alternative embodiment, may be 65mm |, for example250mm, or2＝300mm。
The width of the second rolling bearing 6 is d, optionally 35mm ≦ d ≦ 60 mm. In the present embodiment, d is 46 mm. As an alternative embodiment, d may be 35mm or 60 mm.
The specific arrangement of the oil channel 25 on the laying head, which is communicated with the oil film bearing 3, can be various, in this embodiment, the rotating shaft is provided with the oil channel 25 communicated with the oil film bearing 3, and the hole wall of the shaft through hole 22 is provided with an oil inlet 26 communicated with the oil channel 25.
It should be understood that the above embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A laying head, comprising:
a body (1);
the rotating shaft is rotatably arranged on the machine body (1) and comprises a shaft body (21) and a shaft through hole (22) which penetrates from one end of the shaft body (21) to the other end; one end of the rotating shaft is an outlet end (23) suitable for mounting a laying head, and the end far away from the outlet end (23) is an inlet end (24);
at least one oil film bearing (3) arranged between the rotating shaft and the machine body (1) and positioned at the outlet end (23);
at least one first rolling bearing (4) arranged between the rotating shaft and the machine body (1) and positioned at the outlet end (23);
and the driving device is in transmission connection with the rotating shaft and is used for driving the rotating shaft to rotate.
2. Laying head according to claim 1, wherein the distance between the end face of the first rolling bearing (4) facing the oil film bearing (3) and the end face of the oil film bearing (3) facing the first rolling bearing (4) is S, S being satisfied, S >0 mm.
3. Laying head according to claim 2, characterized in that the outer diameter of the first rolling bearing (4) is B, S satisfies 0.015B ≦ S ≦ 0.025B.
4. Laying head according to claim 1, characterized in that the external diameter of the rotating shaft where the oil film bearing (3) is mounted is E, the clearance of the oil film bearing (3) is s, the play of the first rolling bearing (4) is C, s is satisfied, 0.001E ≦ s ≦ 0.0013E; c is more than or equal to 0.65s and less than or equal to 0.75 s.
5. Laying head according to any one of claims 1 to 4, wherein said first rolling bearing (4) is provided on the side of said oil film bearing (3) remote from said outlet end (23).
6. Laying head according to any one of claims 1 to 4, further comprising at least one second rolling bearing (6), said second rolling bearing (6) being provided between said rotating shaft and said body (1) and being located at said inlet end (24).
7. Laying head according to claim 6, characterized in that said axis of rotation has a length L and in that the centroid of said oil-film bearing (3) is at a distance L from the end face of said outlet end (23)1The distance between the centroid of the second rolling bearing (6) and the end surface of the inlet end (24) is l2The center of gravity of the rotating shaft is at a distance l from the end face of the outlet end (23)3The acting point of the resultant force applied to the rotating shaft by the driving device is at a distance l from the end face of the outlet end (23)4The distance between the action point of the resultant force applied to the rotating shaft by the spinning head and the end face of the outlet end (23) is l, and l is1Satisfy, l1≤(13L-13l2-37l+22l3+28l4)/100。
8. Laying head according to claim 7, wherein the radius of the shaft passage hole (22) at the end face of the outlet end (23) is r, and the radius of the end of the shaft passage hole (22) corresponding to the oil film bearing (3) close to the outlet end (23) is r1The included angle of the hole wall of the shaft through hole (23) at the outlet end (23) relative to the axis of the rotating shaft is alpha, the width of the oil film bearing (3) is D, and l is1The requirements are met,
l1≥(r-r1)cotα+D/2。
9. laying head according to claim 7, characterized in that/, i2L is not more than 50mm2≤300mm。
10. Laying head according to any one of claims 1 to 4, characterized in that said drive means comprise:
a power unit having an output shaft that outputs rotational power;
and the transmission mechanism is connected with the output shaft and moves under the driving of the output shaft, and the transmission mechanism is in transmission connection with the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642282.1A CN114352639B (en) | 2021-12-29 | 2021-12-29 | Laying head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642282.1A CN114352639B (en) | 2021-12-29 | 2021-12-29 | Laying head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114352639A true CN114352639A (en) | 2022-04-15 |
| CN114352639B CN114352639B (en) | 2022-08-16 |
Family
ID=81102542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111642282.1A Active CN114352639B (en) | 2021-12-29 | 2021-12-29 | Laying head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114352639B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110108652A1 (en) * | 2009-11-12 | 2011-05-12 | Morgan Construction Company | Rolling mill laying head |
| CN203108940U (en) * | 2013-02-25 | 2013-08-07 | 西安长基实业有限公司 | Shock-resistant high speed wire rod silking machine and rotation shaft shock-resistant device |
| CN203417954U (en) * | 2013-08-14 | 2014-02-05 | 汉威广园(广州)机械设备有限公司 | Spinning machine with automatic pre-tightening device |
| CN104858248A (en) * | 2015-06-01 | 2015-08-26 | 中冶赛迪工程技术股份有限公司 | Silking machine |
| CN211888470U (en) * | 2020-03-16 | 2020-11-10 | 哈尔滨哈飞工业有限责任公司 | Adopt non-contact dynamic pressure oil film bearing's laying head |
| CN112872056A (en) * | 2020-12-31 | 2021-06-01 | 汉威广园(广州)机械设备有限公司 | Laying head |
-
2021
- 2021-12-29 CN CN202111642282.1A patent/CN114352639B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110108652A1 (en) * | 2009-11-12 | 2011-05-12 | Morgan Construction Company | Rolling mill laying head |
| CN203108940U (en) * | 2013-02-25 | 2013-08-07 | 西安长基实业有限公司 | Shock-resistant high speed wire rod silking machine and rotation shaft shock-resistant device |
| CN203417954U (en) * | 2013-08-14 | 2014-02-05 | 汉威广园(广州)机械设备有限公司 | Spinning machine with automatic pre-tightening device |
| CN104858248A (en) * | 2015-06-01 | 2015-08-26 | 中冶赛迪工程技术股份有限公司 | Silking machine |
| CN211888470U (en) * | 2020-03-16 | 2020-11-10 | 哈尔滨哈飞工业有限责任公司 | Adopt non-contact dynamic pressure oil film bearing's laying head |
| CN112872056A (en) * | 2020-12-31 | 2021-06-01 | 汉威广园(广州)机械设备有限公司 | Laying head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114352639B (en) | 2022-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5031091B2 (en) | Speed increaser for wind power generator and wind power generator | |
| JP5161958B2 (en) | Speed increaser for wind power generator and wind power generator | |
| EP2787229B1 (en) | Rolling bearing with a cage | |
| EP2748474B1 (en) | Journal bearing for use in epicyclical gearbox and method of facilitating hydrodynamic oil flow in the journal bearing | |
| EP3460238B1 (en) | Wind turbine | |
| JP6267826B2 (en) | HYBRID BEARING, WIND GENERATOR WITH HYBRID BEARING, USING HYBRID BEARING, AND HYBRID BEARING OPERATION METHOD | |
| RU2385523C1 (en) | Electric machine | |
| WO2008092448A1 (en) | A wind turbine with a drive train | |
| US20130186223A1 (en) | Stationary gear unit | |
| EP1347185A2 (en) | Cylindrical roller bearing | |
| CN114352639B (en) | Laying head | |
| US20110108652A1 (en) | Rolling mill laying head | |
| KR20110031356A (en) | Acceleration and deceleration device | |
| CN111322311A (en) | Dynamic pressure sliding vane bearing rotor system, motor and electric appliance | |
| CN217166256U (en) | Laying head | |
| KR100723040B1 (en) | Bearing assembly for high speed rotary body | |
| EP3010662B1 (en) | Rolling mill laying head | |
| CN214742079U (en) | Shafting assembly and scroll compressor with same | |
| CN109630635A (en) | A kind of planetary roller screw transmission system | |
| CN218094134U (en) | Fan drive gear box and aeroengine | |
| JP2656597B2 (en) | Rotary compressor | |
| JP6022078B2 (en) | Rotating system | |
| CN215390505U (en) | Lithium battery diaphragm coating machine deflector roll bearing structure | |
| CN219082179U (en) | Planetary gear reducer | |
| WO2015064457A1 (en) | Joint arrangement and wind power generating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |