CN203417954U - Spinning machine with automatic pre-tightening device - Google Patents
Spinning machine with automatic pre-tightening device Download PDFInfo
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- CN203417954U CN203417954U CN201320495445.2U CN201320495445U CN203417954U CN 203417954 U CN203417954 U CN 203417954U CN 201320495445 U CN201320495445 U CN 201320495445U CN 203417954 U CN203417954 U CN 203417954U
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- bearing
- laying head
- automatic pre
- tightening apparatus
- rotor
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Abstract
The utility model discloses a spinning machine with an automatic pre-tightening device. The spinning machine comprises a support structure (1), the automatic pre-tightening device (2), a rolling bearing (3), a rotor (4) and a spinning head (5), wherein the rotor (4) is rotatablely arranged inside the support structure (1) through the automatic pre-tightening device (2) and the rolling bearing (3); the spinning head (5) is arranged at the outer end of the rotor (4); the spinning machine is characterized in that the automatic pre-tightening device (2) comprises a plurality of pre-tightening parts, fixing parts, sliding bearings and an automatic control system; the pre-tightening parts and the fixing parts are mounted on the support structure; each pre-tightening part is connected with one sliding bearing correspondingly; each sliding bearing is connected with the corresponding fixing part; each fixing part is a sliding bearing fixing seat or a hinge structure; the pre-tightening parts are connected with the automatic control system. According to the spinning machine with the automatic pre-tightening device, the force receiving position of the bearing can be set, and the influences of imbalance rotation of a revolved body on the bearing can be eliminated.
Description
Technical field
The utility model relates to a kind of Laying head, especially a kind of Laying head with automatic pre-tightening apparatus.
Background technology
Laying head is that the qualified rolled piece of rolling is bent to the machine of coiling, and supporting construction, rolling bearing, rotor and laying head, consists of.The cantilever structure that laying head adopts is fixed on rotor, cause rolling bearing working condition very poor: if do not consider dynamic balancing factor, bearing outer ring is that downside is stressed all the time, be that bearing clearance is on top all the time, consider dynamic balancing factor, when the centrifugal force producing due to unbalance dynamic is larger, while surpassing this position when static stressed, bearing outer ring stress point rotates the rotation with hollow shaft, and play position will constantly change.When Laying head velocity of rotation reaches 2500r/min, can cause the aggravation of Laying head Vibration Condition.Vibration equipment will cause serious consequence: 1, affect Laying head Forming Quality, occur disorderly dish phenomenon, in follow-up production line, cannot continue, cause producing and interrupt.2, affect equipment life, vibration has very large harm to bearing, gear, axle etc., will cause sharply decline equipment life.For this reason, need to manage to reduce the impact of revolving body unbalancing value on the normal operation of equipment, device structure will reduce the impact of this vibration, expands the permissible value of unbalancing value.
Application number is that 200580005727.8 patent of invention proposes to have active magnetic vibration absorber, passive type hydraulic damping device and vibration damping scheme that both have simultaneously.Active vibration damping device is arranged on rolling bearing on the bearing block with vibration-damping function; Passive type hydraulic damping device utilizes filmatic bearing to carry out vibration damping.This scheme technical difficulty is larger, and magnetic vibration absorber and hydraulic shock-absorbing device are manufactured complicated, involve great expense.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of Laying head with automatic pre-tightening apparatus, increases the automatic pre-tightening apparatus of bearing in Laying head supporting construction, even if there is certain unbalance dynamic situation, bearing outer ring stress point maintains static, and expands Laying head unbalance dynamic permissible value; Shaft strength position can be fixed, eliminate the impact of revolving body unbalance dynamic on bearing, be conducive to Laying head and run up, the disorderly problem of dish of weaving silk in the time of can solving Laying head high-speed cruising, can improve bearing life.
The technical solution of the utility model is: a kind of Laying head with automatic pre-tightening apparatus, comprise supporting construction, automatic pre-tightening apparatus, rolling bearing, rotor and laying head, described rotor can be rotatably set in supporting construction by automatic pre-tightening apparatus and rolling bearing, rotor outer end is provided with laying head, it is characterized in that: described automatic pre-tightening apparatus comprises pretension parts, fixed part, sliding bearing and automatic control system, described pretension parts and fixed part are installed in supporting construction, pretension number of components is several, each pretension parts correspondence is connected with a sliding bearing, each sliding bearing connects with corresponding fixed part, fixed part is sliding bearing holder or hinge arrangement, pretension parts are connected with automatic control system.
Described pretension parts are a kind of in cylinder, oil cylinder or spring.
Described pretension number of components is one, is arranged in directly over rotor.
Described pretension number of components is two, along plumb line, is symmetrically arranged above or below the rotor, and the angle between pretension parts central shaft and plumb line is α, 0 ° of < α <85 °.
Described pretension number of components is four, along plumb line, is symmetrically arranged in rotor above and below, and the angle between pretension parts central shaft and plumb line is α, 0 ° of < α <85 °.
Described automatic pre-tightening apparatus (2) is positioned at rolling bearing (3) inner side.
The beneficial effects of the utility model are: this programme can be fixed shaft strength position, eliminate the impact of revolving body unbalance dynamic on bearing, make bearing operation conditions meet design bearing, this runs up to Laying head is favourable, the problem of weaving silk in the time of can solving Laying head high-speed cruising and disorderly coiling, can improve bearing life.
Accompanying drawing explanation
Fig. 1 is a kind of Laying head structural representation with automatic pre-tightening apparatus of the present utility model;
Fig. 2 is embodiment 1 schematic diagram of the present utility model;
Fig. 3 is embodiment 2 schematic diagrames of the present utility model;
Fig. 4 is embodiment 3 schematic diagrames of the present utility model.
In figure, 1-supporting construction, the automatic pre-tightening apparatus of 2-, 3-rolling bearing, 4-rotor, 5-laying head, 6-pretension parts, 7-fixed part, 8-sliding bearing, 9-automatic control system.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further:
As shown in Figure 1, a kind of Laying head with automatic pre-tightening apparatus, comprise supporting construction (1), automatic pre-tightening apparatus (2), rolling bearing (3), rotor (4) and laying head (5), above-mentioned rotor (4) can be rotatably set in supporting construction (1) by automatic pre-tightening apparatus (2) and rolling bearing (3), and rotor (4) outer end is provided with laying head (5).
Laying head is angular contact bearing away from laying head one end, and near laying head is cylindrical roller rolling bearing.According to the operation principle of rolling bearing, play is best for there being a little a bit negative play, and bearing roller has some stress deformations; But, due to mismachining tolerance, the reasons such as variations in temperature, all there is certain play in bearing design, processing, installation etc., more than the play of this bearing of Laying head reaches 0.4mm.
Axle level is installed, and bearing is subject to downward power, if there is no unbalance dynamic problem, the power that bearing is subject to is that play is on top downwards; If there is unbalance dynamic situation, equivalent acquires a certain degree, and dynamically balanced power will be greater than the downward power that bearing is subject to when static; Zhou center will be due to the former of bearing clearance thereby motion, and bearing clearance will rotate with axle and constantly change location ，Zhou center will be due to the former of bearing clearance thereby motion, and this will cause vibration change greatly.This programme increases an automatic pre-tightening apparatus in supporting construction, automatically eliminates bearing clearance, makes axle all the time a position, and the play of bearing is fixed on a position.
Automatically pre-tightening apparatus (2) is comprised of pretension parts (6), fixed part (7), sliding bearing (8) and automatic control system (9); Fixed part (7) is fixed to pretension parts (6) in supporting construction (1), sliding bearing (8) is connected with pre-tightening apparatus (2), shaft strength position can be fixed, eliminate the impact of revolving body unbalance dynamic on bearing, be conducive to Laying head and run up.
Sliding bearing can be filmatic bearing, because filmatic bearing stability is better, can under certain pretightning force, keep stable, reduces the transfer of rolling bearing clearance, and play is stably fixed to a position.
Embodiment 1: as shown in Figure 2, there is the Laying head of automatic pre-tightening apparatus in said structure, automatically the pretension parts (6) of pre-tightening apparatus (2) are one, pretension parts (6) are oil cylinder, fixed part (7) is bearing fixed seat, each oil cylinder correspondence is connected with a sliding bearing (8), is arranged in directly over rotor (4).
Embodiment 2: as shown in Figure 3, there is the Laying head of automatic pre-tightening apparatus in said structure, automatically the pretension parts (6) of pre-tightening apparatus (2) are two, in rotor (4) top, along plumb line, be symmetrically arranged, pretension parts (6) central shaft and the angle [alpha] between plumb line be 30 °; Pretension parts (6) are cylinder, and fixed part (7) is bearing fixed seat, and each cylinder correspondence is connected with a sliding bearing (8).
Embodiment 3: as shown in Figure 4, there is the Laying head of automatic pre-tightening apparatus in said structure, automatically the pretension parts (6) of pre-tightening apparatus (2) are four, at rotor (4) upper and lower, according to plumb line, are symmetrically arranged, and the angle [alpha] of pretension parts (6) central shaft and plumb line is 30 °; Pretension parts (6) are oil cylinder, and fixed part (7) is bearing fixed seat, and each oil cylinder correspondence is connected with a sliding bearing (8).
This programme can be fixed shaft strength position, eliminate the impact of revolving body unbalance dynamic on bearing, make bearing operation conditions meet design bearing, this runs up to Laying head is favourable, the problem of weaving silk in the time of can solving Laying head high-speed cruising and disorderly coiling, can improve bearing life.
That in above-described embodiment and description, describes just illustrates principle of the present utility model and most preferred embodiment; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.
Claims (6)
1. a Laying head with automatic pre-tightening apparatus, comprise supporting construction (1), automatic pre-tightening apparatus (2), rolling bearing (3), rotor (4) and laying head (5), described rotor (4) can be rotatably set in supporting construction (1) by automatic pre-tightening apparatus (2) and rolling bearing (3), rotor (4) outer end is provided with laying head (5), it is characterized in that: described automatic pre-tightening apparatus (2) comprises pretension parts, fixed part, sliding bearing and automatic control system, described pretension parts and fixed part are installed in supporting construction, pretension number of components is several, each pretension parts correspondence is connected with a sliding bearing, each sliding bearing connects with corresponding fixed part, fixed part is sliding bearing holder or hinge arrangement, pretension parts are connected with automatic control system.
2. the Laying head with automatic pre-tightening apparatus according to claim 1, is characterized in that: described pretension parts are a kind of in cylinder, oil cylinder or spring.
3. the Laying head with automatic pre-tightening apparatus according to claim 1 and 2, is characterized in that: described pretension number of components is one, is arranged in directly over rotor.
4. the Laying head with automatic pre-tightening apparatus according to claim 1 and 2, it is characterized in that: described pretension number of components is two, along plumb line, be symmetrically arranged above or below the rotor, angle between pretension parts central shaft and plumb line is α, 0 ° of < α <85 °.
5. the Laying head with automatic pre-tightening apparatus according to claim 1 and 2, it is characterized in that: described pretension number of components is four, along plumb line, be symmetrically arranged in rotor above and below, angle between pretension parts central shaft and plumb line is α, 0 ° of < α <85 °.
6. the Laying head with automatic pre-tightening apparatus according to claim 1 and 2, is characterized in that: described automatic pre-tightening apparatus (2) is positioned at rolling bearing (3) inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495445.2U CN203417954U (en) | 2013-08-14 | 2013-08-14 | Spinning machine with automatic pre-tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495445.2U CN203417954U (en) | 2013-08-14 | 2013-08-14 | Spinning machine with automatic pre-tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203417954U true CN203417954U (en) | 2014-02-05 |
Family
ID=50017058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320495445.2U Expired - Lifetime CN203417954U (en) | 2013-08-14 | 2013-08-14 | Spinning machine with automatic pre-tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203417954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872056A (en) * | 2020-12-31 | 2021-06-01 | 汉威广园(广州)机械设备有限公司 | Laying head |
| CN114352639A (en) * | 2021-12-29 | 2022-04-15 | 汉威广园(广州)机械设备有限公司 | Laying head |
-
2013
- 2013-08-14 CN CN201320495445.2U patent/CN203417954U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872056A (en) * | 2020-12-31 | 2021-06-01 | 汉威广园(广州)机械设备有限公司 | Laying head |
| CN112872056B (en) * | 2020-12-31 | 2022-05-20 | 汉威广园(广州)机械设备有限公司 | Laying head |
| CN114352639A (en) * | 2021-12-29 | 2022-04-15 | 汉威广园(广州)机械设备有限公司 | Laying head |
| CN114352639B (en) * | 2021-12-29 | 2022-08-16 | 汉威广园(广州)机械设备有限公司 | Laying head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
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| CX01 | Expiry of patent term |