CN1800458A

CN1800458A - Roller for weaving machine

Info

Publication number: CN1800458A
Application number: CN 200510048890
Authority: CN
Inventors: Y·图纳博伊卢; M·希茨; P·古贝尔曼
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2004-12-17
Filing date: 2005-12-16
Publication date: 2006-07-12
Also published as: JP2006169713A; DE102004061451A1; ITMI20052399A1

Abstract

The roller for a textile machinery has a releasable connection between the shaft(14) and the boss16), which connection is obtained by friction connection of clamp elements (18, 34, 50) introduced in or between the shaft and the boss through clamp surfaces pressed to each other, wherein, at least a part of the clamp surfaces, positioned in an almost transverse direction of the roller rotation shaft and on the facing surfaces for connecting with profiles, is specifically formed with gear teeth(36) on the shaft and the boss, and these surfaces are transversely positioned in the circumferential direction or rotation direction of shaft-boss-connection.

Description

The roller that is used for textile machine

Technical field

The present invention relates to a kind of roller that is used for textile machine, wherein, roller is divided into the axle sleeve that an axle and are fixed with a sleeve pipe on it, has one to clamp and connect between axle and the axle sleeve.

Such roller is used to the drafting system in the long filament spinning machine for example.

Background technology

In known embodiment, a kind of so-called conical pressure cooperation is used to fixed hub on axle, in other words there is the axle sleeve of inner circular cone to be enclosed within on the outer conical on the axle, here axle and axle sleeve are each other by the axial tensile force tensioning, and the inside circular cone of axle sleeve is enclosed within on the outer conical of axle by the surface pressing that can select like this.

So-called conical pressure cooperates the needs that satisfied machine up to the present.Along with the development of new engine, for the overall size of roller especially length, the pressure that processing causes and the increase in demand of speed cause being connected of more accurate and more stable (variation still less and bigger rigidity) between needs spool and the axle sleeve.In this case, verified performance for example prevents that the high security and the bearing life that become flexible from also should still keep in noiseless, the running.

Summary of the invention

New higher demand has been satisfied in separable connection between axle and the axle sleeve, wherein, clamping part makes axle be connected with the axle sleeve CONTACT WITH FRICTION by the clamping area that presses mutually, and on axle and axle sleeve, be provided with the relative face that actively contacts each other, wherein these faces are substantially transverse to the direction of rotation of the circumferencial direction or the rotation of roller.These faces can form for example dentalation on expansion loop.Clamping part can be: circular cone clamping device, conical part and/or screw rod, nut.These invention thoughts further develop record in the dependent claims.

Axle that new ideas have at first realized making fast and the connector between the axle sleeve: only be useful on and tighten and unclamp the lifting instrument of screw rod or nut and device by demand.Secondly, connector is stablized more than known solutions and is difficult for changing.Especially advantageously be used for heatable drawing rollers according to the solution of the present invention, heater block is between sleeve pipe on the axle sleeve and the axle that links to each other with axle sleeve here.The face that presses mutually in first theme of the present invention is positioned at holder, clamping device or be inserted between axle and the axle sleeve or the taper roller in axle and axle sleeve on, and be tensioned by screw rod or nut especially.Adjust clamping area with respect to rotating shaft, make non-automatic inhibition of formation so that connection can apply power and just be released.If extra parts are inserted into and are used between axle and the axle sleeve connecting in second theme of the present invention, the unit that then contains axle and axle sleeve or their part carries out final processing and for example grinds, and the concentricity of roller can improve thus.If relative expansion loop is pegged mutually on axle or the axle sleeve, can form the reproducible position of the clamping part of axle or axle sleeve, after the clamping connection was disassembled like this, the initial each other exact position of parts can easily obtain once more.The location that is adjacent to clamping area in all working orders realizes by the pre-tensioning device at the tip of the axis, perhaps in a face and the concentric situation of axle, realizes by at least one clamping part.Screw rod or nut are suitable as the basic element of character of pre-tensioning device, and wherein, commercial available parts can be used to hold-down nut or screw rod, for example the paired shaping packing ring between the bearing surface on nut or screw rod and the axle sleeve.The seat of the still pine of sealing preferably is present between the opposed faces of axle and axle sleeve, and axle sleeve with well thus not tool using just can be extracted out from axle.

Advantageously, in second theme of the present invention, if the forming face of axle-axle sleeve connector is not arranged on the tip of the axis, but in installment state, be arranged in the mid portion of trisection of sleeve pipe about axial location, can obtain the more favourable dynamic property of connector and the load-bearing capacity of Geng Gao thus.

Description of drawings

The present invention describes in detail hereinafter with reference to accompanying drawing.

In the accompanying drawings:

Fig. 1 shows the embodiment that locatees in the positive mode that contacts each other of face on axle and the axle sleeve, and face is positioned transverse to the direction of rotation of the rotating shaft of roller;

Fig. 1 a is the view that rotates the expansion loop of symmetric construction along the direction of principal axis of roller substantially;

Fig. 1 b is the section of expansion loop among Fig. 1 a;

Fig. 2 is the improvement embodiment of the roller of comparing with the theme among Fig. 1;

Fig. 3 is the axle-axle sleeve connector at described roller place, uses the clamping part of band circular cone clamping area, and the symmetry axis of this clamping part is consistent with rotating shaft, also the embodiment that combines with expansion loop among Fig. 1 and 2;

Fig. 4 a is the further embodiment of axle-axle sleeve connector that commercial available clamping device is arranged;

Fig. 4 b is the further embodiment that the axle-axle sleeve connector of clamping device is arranged in axis hole and axle sleeve;

Fig. 4 c, d, e are the details of clamping part; And

Fig. 5 is the embodiment that the clamping connection of cylinder clamping part is arranged.

The specific embodiment

According to Fig. 1, and the accompanying drawing of following majority, roller 10 relies on supporting structure 28 to be placed in the frame 30.Two roller bearings that supporting structure is connected by keeping at a certain distance away on the axle 14 are usually formed.Roller 10 also has an axle sleeve 16, and this axle sleeve is included in radial component that the usefulness sequence number 16 of the tip of the axis represents and the axial component of representing in the usefulness sequence number 24 of closing on the tip of the axis and threaded shaft 14.Between the above-mentioned axial component and axle 14 or axle sleeve 16 of axle sleeve 16, carry out machining to obtain an interference fit that has tolerance, the centering portion ground between axle 14 and the axle sleeve 16 is by this interference fit 24 but also realize by freely cooperating of the gap between two expansion loops 32 here.Each expansion loop 32 has and is shaped or tooth type structures 36, and all is positioned on axle 14 or the axle sleeve 16, preferably by screw and/or sell 34 fixing.Yet being positioned at axial screw with respect to axle 14 is pressed in expansion loop on axle 14 or the axle sleeve 16, only be used for expansion loop is fixed on axle 14 or axle sleeve 16, pin 34 can additionally be provided, especially alignment pin is with the transmission of guaranteeing moment between expansion loop 32 and axle 14 or the axle sleeve 16 and guarantee reproducibility with respect to the position of axle 14 or axle sleeve 16 expansion loops 32.Expansion loop 32 is shaped, so that form positive contact between expansion loop 32, produces the face that is shaped here substantially transverse to the direction of rotation of roller.In the simplest situation, this by expansion loop 32 mutually towards the side in tooth type structures separately realize.According to Fig. 1 a, the flank of tooth can be straight or arc.For example arc can extend at the axial direction of roller in the situation of straight-tooth.In addition, arc also can be at two teeth that radially extend as shown in Fig. 1 a.In this case, can make the dentalation of dentalation and complementary portion, for example, according to United States Patent (USP) 2388456.Tooth has bus, its be positioned at just roller axle radially or the normal by on the rotation of roller around a little angle.Selectable, the flank of tooth can be a tapered protrusion or recessed, and the axle of corresponding taper is parallel to or favours a little the rotation of roller.

In this case, the one side flank of tooth may be embodied as recessed, therefore presents recessed bearing surface, and the complementary flank of tooth of described opposed coupling part can be a crowning.Especially, the flank of tooth mainly is the part of cone, here Xiang Guan cone axially parallel in or favour roller a little.Cone preferred straight or oblique cone or elliptic cone.Clamping part or expansion loop 32 are shown specifically in Fig. 1 a and 1b, and hole 35 is inserted and is used for screw rod or sells 34.In order to improve the concentric of roller, advantageously roller 10 is further handled after assembling, for example by overmastication sleeve pipe 12.Not yet can especially not improving in the lathe with one heart of roller by axle sleeve 16 and sleeve pipe 12 directly are not fixed in the processing machine, but an expansion loop 32 or two expansion loops 32 that axle sleeve and sleeve pipe are connected on the axle are improved by being provided for.

Axle sleeve 16 carrying sleeves 12, wherein, an interface is between sleeve pipe 12 and axle sleeve 16.A static or movable heater is positioned at sleeve pipe 12, thereby makes sleeve pipe 12 reach the operating temperature of hope.Also can selectablely provide a device, be used for selectively individually or cooling support structure, heater block, axle, axle sleeve or axle-axle sleeve connect in combination.Be pulled to axle 14 the end that is positioned at the right side at assembling bottom bracket axle 16, with respect to the axial location of the axle of axle sleeve by 26 restrictions of a convex shoulder.The expansion loop 32 that links to each other with axle 14 is fixed on this convex shoulder 26.Be screwed onto a fixture 18 on the screw thread 20 at the tip of the axis, preferred volution or nut are used to axle sleeve 16 is fixed on the axle 14.Preferably between fixture 18 and axle sleeve 16, insert the safety device of the wedge type disk-form that is a pair of shaping, thus sealed immediately any loosening automatically trend.

These parts of roller are axle 14, sleeve pipe 12, axle sleeve 16 for example, if same or similar with those those parts that in the figure of Fig. 1 and description subsequently, occur, hereinafter just no longer by detailed narration.

According to Fig. 2, replace volution 18, screw rod 38 is used as fixture, and it is screwed in the screwed hole 42 of axle 14.Between screw rod 38 and axle sleeve 16, be a safety device 40, preferably be the fixed part of wedge type dish 40 forms of a pair of shaping.

The embodiment that the embodiment of Fig. 2 is different from Fig. 1 is, as shown in the bottom of Fig. 2, the shaped portion (profiling) between axle 14 and the axle sleeve 16 is not arranged on the relevant expansion loop, but directly combines with spools 14 or axle sleeve 16.In this case, omitted extra expansion loop 32.On the top of Fig. 2, similar with Fig. 1 in the cross section of roller 10, on axle 14 and axle sleeve 16, expansion loop 32 is shown, the expansion loop that is connected with axle sleeve 16 has towards the center of axle sleeve adjustment rack (centring) 17.Expansion loop 32 by screw rod or sell 34 be fixed on the axle 14 or axle sleeve 16 on.In order to improve the concentricity of roller, advantageously roller 10 is further handled at the laggard row of assembling, for example to sleeve pipe 12 overmastications.The concentricity of roller can directly fixedly not improved in processing machine especially lathe by axle sleeve 16 and sleeve pipe 12 yet, but improves with a sleeve pipe expansion loop 32 or two expansion loops 32 of being connected to axle by being provided for axle sleeve.

Fig. 3 shows the further embodiment of axle-axle sleeve connector, and as shown in the Lower Half of figure, expansion loop 32 is used again.What be positioned at axle 15 end is a groove, and holder 46 can be inserted into therein.For with holder 46 fix in position, can use the groove 15 of the end that is arranged in axle 14 and insert the pin 34 in the hole of holder 46.Holder 46 has clamping area, and it links to each other with the end of axle 14 on the one hand, links to each other with axle sleeve 16 on the other hand.Clamping area 46 ' and 46 " mutually around a little angle [alpha].Clamping area 46 ' and 46 " be the part of taper seat, its with corresponding taper seat or axle sleeve 16 in groove 15 in taper seat on the other side adjacent.Holder 46 can have according to the ring of the cross section of the profile of the holder among Fig. 3 46 and makes by generating one, and ring is cut into independent sheet.For fixed hub 16 on axle 14 or sleeve pipe 12, tensioning apparatus or screw rod 37 are inserted in the hole of axle sleeve 16, as shown in Figure 3, be screwed into then in the screwed hole of holder 46.During with respect to axle sleeve 16 screw down clips gripping members 46, to such an extent as to this is being shifted the location cooperation that produces axle sleeve 16 on axle 14 in the axial direction of axle 14.In this case, axle sleeve 16 conical section that is pressed towards the inside of shaped portion (profiling) 36 (bottom of Fig. 3) or axle sleeve 16 at convex shoulder 26 places is pulled on the conical seat 44 of axle.

The remaining parts consistent with those parts of having described among Fig. 1 and 2 just have not been described in detail in Fig. 3.

Another axle-axle sleeve connector has been shown among Fig. 4 a or the 4b.The drilled hole of right side part of axle 14 is to produce a space that is used for clamping device 50.Axle 14 remainder 14 ' is thinner relatively at the wall at its right-hand end place, and it can be radially expanded towards the column part of axle sleeve 16 and does not have unallowed stress when clamping device 50 is put in pressure like this.Because being radially expanded of the tubular portion 14 ' of axle 14 forms the CONTACT WITH FRICTION between axle 14 and the axle sleeve 16, it is kept in all operational situations.As shown in Fig. 4 c, 4d or the 4e, clamping device preferably is made up of at least one inner circular

conical ring

54 or 58 and outer

conical dishes

52 or 56, and wherein inner circular

conical ring

54 or 58 is around at least one outer conical dish 52 or 56.According to Fig. 4 a, 4d and 4e, a clamping device 50 is made up of outer

conical dish

52 or 56, and it is faced the ground tractive mutually by screw rod 34 in inner circular conical ring 54 or 58.Have the tensioning of outer

conical dish

52 or 56 in inner circular

conical ring

54 or 58 of outer conical that such effect is arranged: described inner circular conical ring is radially oppressed, and produces and shaft portion 14 ' firm being connected.It is that CONTACT WITH FRICTION still guarantees to go up sufficiently stable cooperation at all operational situation bottom bracket axles 16 at the end 14 ' of axle 14 fully that this axle-axle sleeve connects.As shown in Fig. 4 c, outer

conical dish

52,56 and circular cone ring 58 have a plurality of holes 35 or screwed hole, here the screw thread of screw rod 34 can be engaged in wherein.Yet outer

conical dish

52 and 56 has the outside of circular cone processing, and inner circular

conical ring

54 or 58 has the face of placing against outer

conical dish

52 or 56 corresponding to the part of circular cone or taper seat.

Further go through Fig. 4 b.When clamping device 50 was placed under tensile force by fixture 34, the shaft end 14 with boring part 14 ' radially was pressed against on the axle sleeve 16 by clamping device 50.The independent part of the clamping device 50 shown in Fig. 4 e just is positioned at circular cone ring 58 or outer conical dish 56 corresponding to the circular cone dish of the inside circular cone of the outer conical of outer conical dish 56 is arranged.Pass a plurality of screw rods 34 of the perforation placement of circular cone ring 58, be screwed in the screw thread of outer conical dish 56.Because by the tension force of screw rod 34, the inside that the surface pressing that the external diameter of clamping device or circular cone ring 58 increases so that high leans on shaft end 14 ' produces each other for circular cone ring 58 or circular cone dish 56.As a result, the column part on the shaft end 14 ' is inwardly pressed to axle sleeve 16, produces the tight fit of CONTACT WITH FRICTION between axle sleeve 16 and shaft end 14 ' or axle 14.

At last, the connection of the another kind of type between axle 14 and the axle sleeve is shown in Figure 5.Generate convex shoulder 26 on axle 14, axle sleeve 16 flat bearing face presents on axle 14 like this, and in the bottom of Fig. 5, perhaps it can be taper shape, and the inside circular cone of axle sleeve 16 is on the outer conical of axle 14 like this.For produce axle sleeve 16 with respect to axle 14 axially and tension force radially, taper roller is applied to the circular cone processing inner surface 16 ' of axle sleeve 16.Advantageously taper roller 19 is by being held as the retainer in taper roll bearing.The volution 18 that is complementary with the position of taper roller 19 is screwed onto on the screw thread 39 of end of axle 14.When tightening volution 18, roller 19 is gone up around their axle rotation and at the taper seat 16 ' of axle sleeve and is rolled.This scheme make might only use little power just can be on axle 14 fixed hub 16.This clamping device can with according to Fig. 1, the combination of 2 or 3 connector device, dentalation 36 is employed here.Usually, clamping device 50 as what disclose in the right side of Fig. 1 to 5 part, can be used with dentalation 36.

Usually, should be noted that expansion loop or clamping part also can be made into and axle or the integral piece implemented together of axle sleeve, this shaft type axle sleeve does not separate with it, and the type of connection is above described can be as the single or multiple or any enforcement in combination defined in the following claim.Majority illustrates the roller in connection of axle/axle sleeve or the top view, and wherein hacures only provide in Fig. 1.For the sake of clarity, the hacures in other the top view have been omitted except Fig. 1.

Claims

1, a kind of roller that is used for textile machine, its connection between axle (14) and axle sleeve (16) can separate, it is characterized in that, by inserting clamping part in axle (14) and axle sleeve (16) or in the gap between them or in the CONTACT WITH FRICTION of (24 or 46 ', 46 ") because the clamping area that compresses mutually; by the opposed faces that actively contacts each other is provided on axle (14) and axle sleeve (16); preferably dentalation (36) is realized described roller, wherein these faces are substantially transverse to the direction of rotation of the circumferencial direction or the rotating shaft of roller.

According to the described roller of claim 1, it is characterized in that 2, its axle or axis (10) rely on supporting structure (28) to be placed in the frame (30), wherein supporting structure is made up of two roller bearings that the space certain distance is connected on the axle (14) usually.

According to the described roller of aforementioned arbitrary claim, it is characterized in that 3, roller (10) comprises axle sleeve (16), this axle sleeve is included in the radial component of the tip of the axis and near the tip of the axis, the axial component of threaded shaft (14).

4, according to the described roller of aforementioned arbitrary claim, it is characterized in that, between the axial component and axle (14) or axle sleeve (16) of axle sleeve (16), carry out machining to obtain the tolerance interference fit, the centering between its axis (14) and the axle sleeve (16) is partly realized by this interference fit (24) and is cooperated realization by the backlash freedom between two expansion loops (32).

5, according to the described roller of aforementioned arbitrary claim, it is characterized in that its casing length is greater than 400mm.

6, according to the described roller of aforementioned arbitrary claim, it is characterized in that, each expansion loop (32) has shaping or tooth type structures (36), and all be positioned on axle (14) or the axle sleeve (16), preferably by screw and/or pin (34) and/or with the concentric continuously cylinder axis of rotating shaft on interference fit fix, the external diameter that encircles of assembling back is preferably concordant with the external diameter of axle like this.

According to the described roller of aforementioned arbitrary claim, it is characterized in that 7, especially axially dentalation is positioned between axle (14) and the axle sleeve (16).

8, according to the described roller of aforementioned arbitrary claim, it is characterized in that, a pin (34) can be provided, especially alignment pin is with the transmission of guaranteeing moment between expansion loop (32) and axle (14) or the axle sleeve (16) and guarantee reproducible position with respect to axle (14) or axle sleeve (16) expansion loop (32).

According to the described roller of aforementioned arbitrary claim, it is characterized in that 9, expansion loop (32) is shaped, make the positive contact of formation between expansion loop (32), the face that wherein produces shaped portion is substantially transverse to the direction of rotation of roller.

10, according to the described roller of aforementioned arbitrary claim, it is characterized in that, expansion loop (32) has tooth type structures separately on its opposed facing side, wherein said tooth has and is positioned at radially or favours radially bus a little, and the flank of tooth can be straight or arc.

11, according to the described roller of aforementioned arbitrary claim, it is characterized in that, the bus of tooth be positioned at just roller axle radially or by the normal on the axle of roller around a little angle.

According to the arbitrary described roller of claim 1 to 11, it is characterized in that 12, the flank of tooth can be a tapered protrusion or recessed, wherein the axle of corresponding taper is parallel to or favours a little the rotation of roller.

According to the described roller of aforementioned arbitrary claim, it is characterized in that 13, the shaped portion between axle (14) and axle sleeve (16) is not positioned on the continuous expansion loop, but directly be combined in axle or the axle sleeve (14 or 16).

14, according to the roller of claim 1, it is characterized in that, be implemented as heatable drawing rollers, wherein, heater block be positioned at the sleeve pipe (12) on the axle sleeve (16) and the axle (14) that links to each other with axle sleeve (16) between.

15, according to the described roller of aforementioned arbitrary claim, it is characterized in that, expansion loop (32) can upward be interfixed at axle (14) or axle sleeve (16), after being opened, the clamping connection can obtain reproducible location thus with axle (14) or axle sleeve (16) clamping part, initial position, especially parts same accurate concentricity (greater than 0.1mm) each other can easily be provided once more.

16, according to the described roller of aforementioned arbitrary claim, it is characterized in that, screw rod (34) or nut (18) are used as the basic element of character of the pre-tensioning device that is used to connect, the parts that can commercial obtain can be used to hold-down nut (18) or screw rod (34), preferably paired shaping packing ring between the area supported on nut (18) or screw rod (34) or (38) and the axle sleeve (16).

According to the described roller of aforementioned arbitrary claim, it is characterized in that 17, the seat of the still pine of sealing is present between axle (14) and the axle sleeve (16), needn't just extract out from axle (14) by tool using with the axle sleeve (16) of sleeve pipe (12) thus.

According to the described roller of aforementioned arbitrary claim, it is characterized in that 18, about axial location, expansion loop (32) is preferably placed at the mid portion of the trisection of installment state middle sleeve.

19, according to the described roller of aforementioned arbitrary claim, it is characterized in that, is a groove (15) at the tip of the axis (14 '), and holder (46) inserts wherein.

According to the described roller of aforementioned arbitrary claim, it is characterized in that 20, holder (46) has clamping area, they match with axle (14) on the one hand, match with axle sleeve (16) on the other hand.

21, according to the described roller of aforementioned arbitrary claim, it is characterized in that, clamping area (46 ') and (46 ") are the part of taper seat at least, described taper seat and corresponding taper seat in groove (15) or in axle sleeve (16) taper seat on the other side adjacent.

According to the described roller of aforementioned arbitrary claim, it is characterized in that 22, tensioning apparatus or screw rod (37) are screwed in the screwed hole of holder (46), axle sleeve (16) or sleeve pipe (12) are fixed on axle (14) upward (Fig. 3).

23, according to the described roller of aforementioned arbitrary claim, it is characterized in that the location of clamping area (46 ', 46 ") is by holder (46) adjacent to one another;, realize by at least one clamping part (32) by at the tip of the axis (14 ') or be parallel to pre-tensioning device in the face of axle.

According to the described roller of aforementioned arbitrary claim, it is characterized in that 24, axle sleeve (16) is pressed against on the shaped portion (36) located of convex shoulder (26) of axle, perhaps the conical portion of axle sleeve (16) is on the conical convex shoulder (44) of axle.

25, according to the described roller of aforementioned arbitrary claim, it is characterized in that, in a kind of structure, face is positioned on axle and the axle sleeve (14 or 16) in the mode of positive contact each other, these faces are the side of projection or tooth especially, they are embodied as concave surface on the one hand, on the other hand in opposed clamping part, be embodied as complementary crowning, especially the part of a circular cone or a plurality of circular cones, wherein said cone axis is to being parallel to roller or being positioned on the roller, and a circular cone is embodied as circular cone or elliptic cone straight or that tilt.