CN200964473Y - Friction roller - Google Patents
Friction roller Download PDFInfo
- Publication number
- CN200964473Y CN200964473Y CN 200720107602 CN200720107602U CN200964473Y CN 200964473 Y CN200964473 Y CN 200964473Y CN 200720107602 CN200720107602 CN 200720107602 CN 200720107602 U CN200720107602 U CN 200720107602U CN 200964473 Y CN200964473 Y CN 200964473Y
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- China
- Prior art keywords
- wheel body
- running roller
- rolling
- friction
- roll wheel
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- 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.)
- Expired - Lifetime
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Abstract
A friction rolling wheel belongs to the field of textile machinery, and the defect of short service life caused by sliding friction between the wear-resistance sliding bushing and the driving shaft exists in the prior art. The utility model comprises a dynamic rolling-wheel body fixed on the driving shaft and a friction ring arranged on the dynamic rolling-wheel body; the dynamic rolling-wheel body comprises an installation sleeve and a bearing part of the friction ring, and a hollow rolling-wheel body with the same external diameter with the dynamic rolling-wheel body should be arranged on at least one side of the dynamic rolling-wheel body; the utility model is characterized in that the axial length of the installation sleeve is larger than that of the bearing part of the friction ring, and at least one side of the installation sleeve is provided with a rolling bearing, and the inner ring of the bearing is tightly sleeved on the outer wall of the installation sleeve; the hollow rolling-wheel body, which is in cylindrical sleeve type, is tightly sleeved on the outer ring of the rolling bearing, and is adjacently connected with the dynamic rolling-wheel body. The utility model has the advantages of simple structure, convenient replacement and maintenance, long service life, and excellent constant-line coiling effect.
Description
Technical field
The utility model relates to a kind of textile machinery component, is used for the friction running roller of the permanent linear-speed winding yarn of textile machine Taper Pipes such as two-for-one twister, spinning machine specifically.
Background technology
Existing two-for-one twister, spinning machine Yarn reeling mechanism, usually adopt the contact of friction running roller batch bobbin when initial () and yarn tube (when batch batch yarn on the bobbin after) realize the winding shaping of yarn tube, concrete is with the constant rotational speed of friction running roller passes to the yarn tube and reaches in the process that bobbin diameter changes from small to big and make the package of yarn tube perseverance linear speed.When batching bobbin and be Taper Pipe, because yarn tube diameter becomes big gradually from small end to big end, it is big that the peripheral speed of yarn tube also just becomes accordingly gradually, have only linear velocity on its drive station (being equalization point) to be equal to the linear velocity of the running roller that rubs, certainly will there be sliding phenomenon in little, the big end away from equalization point with the friction running roller like this.Move the defective that influences product quality that causes due to the variation of batching linear speed because of drive station floating when batching for solving above-mentioned Taper Pipe, a kind of friction running roller that is used for the permanent linear speed package of Taper Pipe has adopted the split-type structural scheme, its scheme is: live roll wheel body and function holding screw is fixed on the power transmission shaft, the live roll wheel body is provided with dead turn, also is provided with sky cover running roller body consistent with the diameter of this live roll wheel body and that can rotate relative to power transmission shaft on the power transmission shaft of at least one side of live roll wheel body; Empty cover running roller body and live roll wheel body adjacency, and on the power transmission shaft in its outside, make axial restraint with the tightening sleeve; Be embedded with wear-resisting slide bushing between empty cover running roller body and the power transmission shaft, in order to add the service life of vast sky cover running roller body.But still be sliding friction between wear-resisting slide bushing and the power transmission shaft, make shorten greatly the service life of power transmission shaft and empty cover running roller body.
The utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition be overcome that prior art exists because of making the short defective in service life of power transmission shaft and empty cover running roller body for sliding friction between wear-resisting slide bushing and the power transmission shaft, provide a kind of rational in infrastructure, convenient for maintaining, the friction running roller of power transmission shaft and empty cover running roller body long service life.For this reason, the utility model is by the following technical solutions:
A kind of friction running roller, comprise live roll wheel body that is fixed on the power transmission shaft and the dead turn that is arranged on the live roll wheel body, at least one side of live roll wheel body is provided with the external diameter sky cover running roller body suitable with it, the live roll wheel body comprises the dead turn supporting part that is used for installing sleeve fixing on power transmission shaft and is used to carry dead turn, it is characterized in that: the axial length of described installing sleeve is greater than the axial length of described dead turn supporting part, described installing sleeve is provided with rolling bearing, and the inner ring of this rolling bearing closely is set in the outer wall of described installing sleeve; Described empty cover running roller body is the cylindrical sleeves form, closely be set on the outer ring of described rolling bearing, and under the support limit of rolling bearing with described dead turn supporting part adjacency, when being relatively rotated, empty cover running roller body and power transmission shaft become the rolling friction of bearing by sliding friction, eliminate the wearing and tearing of empty cover running roller body and power transmission shaft, prolonged both service life.
During work, the length of the yarn tube that the control package is shaped is slightly less than the total length of described empty cover running roller body and live roll wheel body, and empty cover running roller body can work the yarn tube shaping effect that keeps when yarn package is worked.When yarn by empty tube in the coiling process of full tube, drive station appears to yarn tube small end or big end is floating when moving, even the yarn tube all contacts pressure with the friction running roller, but owing to be to overlap the running roller body with respect to the sky that power transmission shaft freely rotates corresponding to yarn tube small end or big end part, there is not the power input, has only the dead turn starting power gearing on the live roll wheel body, so empty cover running roller body no longer influences the motion of yarn tube, guaranteed that linear speed does not change with yarn tube diameter variation, reached the requirement of permanent linear speed package, reduced big, in, the twist difference of little yarn tube helps reducing uneven twist, improves yarn quality.
As the further of technique scheme improved and replenish, make such scheme compact conformation, easy to implement, the utility model also comprises following additional technical feature:
Described live roll wheel body is provided with a stepped hole radially, this radially stepped hole near the section diameter of installing sleeve less than part near the dead turn supporting part, and screw thread is set in the little part of diameter, can avoid the screw thread processing difficulties that produces owing to screw thread is long like this.
Described live roll wheel body is matched and is fixed on the power transmission shaft by holding screw that is positioned at described radially stepped hole and stepped hole radially.
Described dead turn covers on the described radially stepped hole.
The axial length of described installing sleeve equals the length sum with described empty cover running roller body and described dead turn supporting part.
Be connected with muscle between described installing sleeve and the dead turn supporting part.
The utlity model has following beneficial effect: the utility model is simple in structure, and repair and replacement are convenient, long service life, and permanent linear speed batches respond well.
Description of drawings
Fig. 1 is the axial section of a kind of structure of the utility model.
Fig. 2 is the axial section of the utility model medium power running roller body.
Fig. 3 is the initial working state schematic representation of Fig. 1.
Fig. 4 is the middle working state schematic representation of Fig. 1.
Fig. 5 is the axial section of the another kind of structure of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Embodiment one
As shown in Figure 1 and Figure 2 be the friction running roller of a kind of form of implementation of the present utility model, it adopts split-type structural, comprises live roll wheel body 1, dead turn 2, empty cover running roller body 3, holding screw 4, rolling bearing 5.
Live roll wheel body 1 comprises installing sleeve 7, dead turn supporting part 9, muscle 8, installing sleeve 7 is connected with dead turn supporting part 9 usefulness muscle 8, the axial length of installing sleeve 7 is greater than the axial length of dead turn supporting part 9, on muscle 8, be provided with a stepped hole 10 radially, this radially in the stepped hole 10 near the section diameter of installing sleeve 7 less than part near dead turn supporting part 9, be provided with screw thread at stepped hole 10 radially near the part of installing sleeves 7, by the holding screw 4 that is threaded; During installation, power transmission shaft is penetrated in the installing sleeve 7 of live roll wheel body 1, conflict by the inner of holding screw 4 and realizing on the power transmission shaft 6 that live roll wheel body 1 installs and fixes on power transmission shaft 6, thus, when power transmission shaft 6 rotates under dynamic action, can be with live roll wheel body 1 to rotate together.
Empty cover running roller body 3 is that profile is the member of cylindrical sleeves form, and its external diameter is consistent with live roll wheel body 1 external diameter; During installation, two rolling bearings 5 are enclosed within respectively on the installing sleeve 7 of live roll wheel body 1 both sides, the inner ring of rolling bearing 5 closely is set on the outer wall of installing sleeve 7, empty cover running roller body 3 closely is set on the outer ring of rolling bearing 5 respectively, thus, by rolling bearing 5 two empty cover running roller bodies 3 are supported and spacing in live roll wheel body 1 both sides and with live roll wheel body 1 adjacency, and installing sleeve 7 that can moving power running roller body 1 freely rotates, also just equal and freely to rotate around power transmission shaft 6, and empty cover running roller body 3 is continuously basic with the surface of live roll wheel body 1 supports and keep the moulding of yarn tube so that the surface of yarn tube formed.According to the length of moulding yarn tube 10, the total length of default empty cover running roller body 3 and dead turn supporting part 9 is slightly larger than the length of moulding yarn tube 10.
As shown in Figure 3, Figure 4, the friction running roller is in working order the time, and power imports into by power transmission shaft 6, and power transmission shaft 6 rotations drive live roll wheel body 1 rotation that is with dead turn 2, make live roll wheel body 1 when Yarn reeling is worked as the power driving wheel.When original position shown in Figure 3, Taper Pipe 11 is pressed on the dead turn 2 under gravity or spring tension effect, contacts with dead turn to produce frictional force, rotates under the effect of frictional force, begins to batch yarn and forms yarn cone 12.At this moment, because drive station is fixed on the dead turn, the linear velocity of batching yarn is constant all the time.Continuous change along with yarn tube 11 diameters is big as shown in Figure 4, because the yarn and the flexibility of batching the yarn tube 11 of formation thereof, very fast yarn tube 11 just contacts with the running roller that rubs on its whole length, makes on the whole friction running roller length all to have moment of friction.But because the sky cover running roller body 3 of friction running roller can freely rotate with respect to power transmission shaft, do not have the power input, avoided of the influence of the moment of friction of its top yarn tube coiling linear speed.In yarn tube 10 coiling process from small to large, have only the live roll wheel body 1 of overcoat dead turn 2 to work all the time, stablized the coiling linear speed.
Embodiment two
As shown in Figure 5, it is the friction running roller of another kind of form of implementation of the present utility model, its same split-type structural that adopts, the difference of itself and embodiment one is that empty cover running roller body 3 only is arranged on the installing sleeve 7 of live roll wheel body 1 one sides, other structures are identical with aforesaid embodiment with duty, do not repeat them here.
Claims (7)
1, a kind of friction running roller, comprise the live roll wheel body (1) that is fixed on the power transmission shaft (6) and be arranged at dead turn (2) on the live roll wheel body (1), at least one side of live roll wheel body (1) is provided with the external diameter sky cover running roller body (3) suitable with it, live roll wheel body (1) comprises and is used for installing sleeve (7), with dead turn supporting part (9), it is characterized in that: the axial length of described installing sleeve (7) is greater than the axial length of described dead turn supporting part (9), described installing sleeve (7) is provided with rolling bearing (5), and the inner ring of rolling bearing (5) closely is set on the outer wall of described installing sleeve (7); Described empty cover running roller body (3) is the cylindrical sleeves form, closely be set on the outer ring of rolling bearing (5), and with described dead turn supporting part (9) adjacency.
2, friction running roller according to claim 1, it is characterized in that: a stepped hole (10) is radially arranged on the described live roll wheel body (1), this radially stepped hole (10) near the section diameter of described installing sleeve (7) less than part near described dead turn supporting part (9), and screw thread is set in the little part of diameter.
3, friction running roller according to claim 2 is characterized in that: described live roll wheel body (1) is matched and is fixed on the power transmission shaft (6) by holding screw on it (4) and stepped hole (10) radially.
4, friction running roller according to claim 3 is characterized in that: holding screw (4) is positioned at described radially stepped hole (10).
5, friction running roller according to claim 2 is characterized in that: described dead turn (2) covers on the described radially stepped hole (10).
6, friction running roller according to claim 1 is characterized in that: the axial length of described installing sleeve (7) equals and described empty cover running roller body (3) and both length sums of described dead turn supporting part (9).
7, friction running roller according to claim 1 is characterized in that: be connected with muscle (8) between described installing sleeve (7) and the dead turn supporting part (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720107602 CN200964473Y (en) | 2007-03-23 | 2007-03-23 | Friction roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720107602 CN200964473Y (en) | 2007-03-23 | 2007-03-23 | Friction roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200964473Y true CN200964473Y (en) | 2007-10-24 |
Family
ID=38868485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720107602 Expired - Lifetime CN200964473Y (en) | 2007-03-23 | 2007-03-23 | Friction roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200964473Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355720A (en) * | 2018-11-22 | 2019-02-19 | 张家港锦亿化纤有限公司 | Dacron thread transition wheel |
| CN111169032A (en) * | 2020-02-08 | 2020-05-19 | 湖南江南四棱数控机械有限公司 | Single-wheel type numerical control coreless yarn group tension control device and method |
-
2007
- 2007-03-23 CN CN 200720107602 patent/CN200964473Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355720A (en) * | 2018-11-22 | 2019-02-19 | 张家港锦亿化纤有限公司 | Dacron thread transition wheel |
| CN111169032A (en) * | 2020-02-08 | 2020-05-19 | 湖南江南四棱数控机械有限公司 | Single-wheel type numerical control coreless yarn group tension control device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG RIFA TEXTILE MACHINERY CO., LTD. Free format text: FORMER NAME: RIFA TEXTILE MACHINES CO., LTD., ZHEJIANG PROV. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 312500, Xinchang Zhejiang hi tech Park (Nan Yan) Date Digital Park Patentee after: Zhejiang Rifa Textile Machinery Co.,Ltd. Address before: 312500, Xinchang Zhejiang hi tech Park (Nan Yan) Date Digital Park Patentee before: Zhejiang Rifa Textile Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071024 |
|
| CX01 | Expiry of patent term |