CN104358846A - Drum-type asymmetric damping automatic belt tensioner - Google Patents
Drum-type asymmetric damping automatic belt tensioner Download PDFInfo
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- CN104358846A CN104358846A CN201410557008.8A CN201410557008A CN104358846A CN 104358846 A CN104358846 A CN 104358846A CN 201410557008 A CN201410557008 A CN 201410557008A CN 104358846 A CN104358846 A CN 104358846A
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- damping
- spring tongue
- circumferential face
- outer circumferential
- peripheral surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0831—Means for varying tension of belts, ropes, or chains with vibration damping means of the dry friction type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0838—Means for varying tension of belts, ropes, or chains with vibration damping means of the dissipating material type, e.g. elastomeric spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a drum-type asymmetric damping automatic belt tensioner, and belongs to the field of tensioners. The prior art has the problem of unstable damping which shortens the service life of a torsion spring. Through the arrangement of damping components with directional spring tongues between an inner circumferential face and an outer circumferential face, a damping force produced between each damping friction block and the inner circumferential face or the outer circumferential face becomes larger when a tensioning arm rotates in one direction (loading direction) and becomes smaller when the tensioning arm rotates in another direction (unloading direction), so that damping asymmetry for loading and unloading is realized. A radial tensioning force for damping provided by the tensioner is provided by a separate elastic element; damping magnitude and asymmetry have nothing to do with the original form and position error and the working rotation angle of the torsion spring, so that defects caused by the use of the expansion or contraction of spring mean diameter of the torsion spring to indirectly control the radial movement of the damping friction block are overcome, the damping stability is improved, and the service life of the torsion spring is prolonged.
Description
Technical field
The present invention relates to a kind of tensioner apparatus, particularly relate to a kind of belt stretcher of asymmetric damping mechanism, this damping device has the different feature of damping in different circumference sense of rotation, allow tension arms loaded in tension time moment of torsion and unloading lax time moment of torsion not etc., thus realize the effect that reduces mechanism's shake, extend lifetime of system.
Background technique
Existing damping automatic belt tightener technology, extreme portions is all also symmetrical damping stretcher; This technology is difficult to solve belt when starting or accelerate suddenly comprehensively can jump the problem of tooth; In addition, undesirable to the vibrating effect separating slow system.
The technological scheme that existing patent documentation CN102741588A, CN102472373A, CN103174807A disclose, complex structure, the mainly squeezed air-damping sheet by external diameter swell during torsion spring unwinding, produce larger pressure with tension arms or pedestal internal diameter thus produce larger damping friction, due to torsion spring external diameter and torsion spring two ends angle accuracy of manufacturing be difficult to control, error is very large, the damping size of this structure and the realization of asymmetry are difficult to stablize for this reason, and effect is not ideal.
Just in time contrary with said structure scheme is had in existing application, it arranges a wear-resistant sleeve between the internal surface and the outer surface of tension arms of torsion spring, this wear-resistant sleeve has a sleeve body and shirt rim, the end of torsion spring press against the shirt rim of wear-resistant sleeve, allow wear-resistant sleeve and pedestal not rotate motion, when torsion spring adduction tightens, the internal diameter of torsion spring reduces, thus hold wear-resistant sleeve tightly, realize the damping due to rotation of tension arms relative to wear-resistant sleeve.The advantage of this technology is that structure is simple, and shortcoming is the same with technique scheme, and the angle precision at torsion spring internal diameter and torsion spring two ends is difficult to control, and the damping size of this structure and the stability of asymmetry are difficult to stablize for this reason, and effect is also undesirable.
Above-mentioned two kinds of technology, common feature be use torsion spring in the course of the work mean diameter of coil swell or reduce and indirectly control damping friction block and move radially, the initial error of mean diameter of coil and the angle error at torsion spring two ends, all will cause the damping size of a collection of product to differ greatly.The wearing and tearing of damping friction block trace, the change will damping being caused huge again; With regard to a certain corner of the operation interval of stretching wheel assembly, no matter be now loading direction or uninstall direction, the hold degree of torsion spring to wear-resistant sleeve is certain, that is, with regard to certain a bit with regard to, loading direction is the same with the damping of uninstall direction.In addition, along with the increase loaded, the windup-degree of torsion spring increases, and torsion spring almost loses near several circles of wear-resistant sleeve the effect reversed bullet and become, and reduces the life-span of torsion spring.Common result is that damping is unstable, the torsion spring lost of life.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition overcomes prior art damping instability, and the defects such as the torsion spring lost of life, provide a kind of drum-type asymmetric damping automatic belt tightener.
For achieving the above object, drum-type asymmetric damping automatic belt tightener of the present invention, is characterized in that comprising:
There is the pedestal of mandrel;
Tension arms, it is assemblied on described mandrel and can swings relative to pedestal around described mandrel, and described pedestal and tension arms set up relatively turnable inner peripheral surface, outer circumferential face separately, and the diameter of described outer circumferential face is less than the diameter of described inner peripheral surface;
Torsion spring, it applies the elastic force to the deflection of belt tension direction to described tension arms;
Belt wheel, it is assemblied on described tension arms;
Damping member, it is circular and between described outer circumferential face and inner peripheral surface, this damping member comprises elastic element and some damping friction blocks, described elastic element comprises the elastic matrix of ring-type and provides some spring tongues of lasting radical elasticity, described spring tongue from described elastic matrix to radial direction extend and to peripheral, oblique, described spring tongue configures described damping friction block, described damping friction block by the elastic force pressure holding of described spring tongue on described inner peripheral surface or outer circumferential face, when the true dip direction of described spring tongue makes tension arms rotate relative to pedestal or when having rotation trend, the damping force that described damping friction block and described inner peripheral surface or outer circumferential face produce is when described tension arms swings to a direction or large when having swing trend, when described tension arms swings in the other direction or little when having swing trend.
As optimization technique means, described outer circumferential face is positioned on described tension arms, described inner peripheral surface is positioned on described pedestal, or described outer circumferential face is positioned on described pedestal, described inner peripheral surface is positioned on described tension arms.
As optimization technique means, described elastic matrix is relative to the fixing assembling of described outer circumferential face, each described spring tongue extends the outside to described elastic matrix and by the damping friction block pressure holding of correspondence on described inner peripheral surface, the true dip direction of each described spring tongue is identical.
As optimization technique means, described elastic matrix is relative to the fixing assembling of described inner peripheral surface, each described spring tongue extends the inner side to described elastic matrix and by the damping friction block pressure holding of correspondence on described outer circumferential face, the true dip direction of each described spring tongue is identical.
As optimization technique means, described elastic matrix rotatably assembles relative to described outer circumferential face, inner peripheral surface, spring tongue described in a part extends outside to described elastic matrix and by the damping friction block pressure holding of correspondence on described inner peripheral surface, spring tongue described in another part extends the inner side to described elastic matrix and by the damping friction block pressure holding of correspondence on described outer circumferential face, the true dip direction extending the spring tongue in the outside to described elastic matrix is contrary to the true dip direction of the spring tongue of the inner side of described elastic matrix with extension.
As optimization technique means, described spring tongue is that edge from described elastic matrix is or/and the die-cut distortion in intermediate portion forms.
As optimization technique means, described damping friction block comprises the overall skeleton of formation one and friction piece, and described skeleton is provided with the interior concave space be absorbed in for described spring tongue.
As optimization technique means, each described damping friction block has the rubbing surface adapted with the radian of described inner peripheral surface or outer circumferential face.
As optimization technique means, one end of described torsion spring to be supported on described pedestal or on the component fixing with described pedestal, and the other end to be supported on described tension arms or on the component fixing with described tension arms.
As optimization technique means, described pedestal comprise body and the attachment that is attached on body or/and the extending body that extends from body; Described tension arms comprise body and the attachment that is attached on body or/and the extending body that extends from body.
As optimization technique means, the manufactured materials at described damping friction block and described inner peripheral surface or outer circumferential face contact friction position is high heat-resisting thermoplastic.
As optimization technique means, the thermoplastic that described height is heat-resisting forms for adding any one additive following in any one basic material following, described basic material comprises polyamide 46, polyamide 66, polyamide 6, poly-hexamethylene terephthalamide, polyphthalamide, polyether-ether-ketone, polyphenylene sulfide, described additive comprises glass fibre, the carbon fiber of 20%-60%, the aramid fibre of 20%-60%, the phenolic fibre of 20%-60% of 20%-60%, and described percentage composition is the mass percent of additive in manufactured materials.
Elastic element of the present invention, its spring tongue has directivity, when belt tighten tension arms is loaded time, tension arms is forced to swing to the opposite direction of tension direction or have swing trend, damping friction block is not only subject to the original radial tension of spring tongue and produces frictional damping, but also being subject to the radial component of the supporting force in spring-latch head tilt direction, this component turn increases the damping hindering tension arms; When belt slack unloads from tension arms, tension arms then swings to tension direction or has swing trend, and damping friction block is only subject to the tension force also less than the original radial tension of spring tongue and produces frictional damping; Thus the asymmetry of damping when realizing compression and decompression.
Stretcher of the present invention provides the radial tension of damping to be provided by independent elastic element, the original Form and position error of damping size and asymmetry and torsion spring and angle of swing when working have nothing to do, thus overcome prior art use torsion spring in the course of the work mean diameter of coil swell or reduce and indirectly control damping friction block and move radially caused defect, increase the stability of damping, extend the life-span of torsion spring.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of a kind of structure of stretcher of the present invention;
Fig. 2 is that the K-K of damping member shown in Fig. 1 is to cross-sectional schematic;
Fig. 3 is the cross-sectional schematic of another kind of damping member;
Fig. 4 is for being fitted in the structural representation extended to the damping friction block on the spring tongue outside elastic matrix;
Fig. 5 is for being fitted in the structural representation extended to the damping friction block on the spring tongue inside elastic matrix;
Fig. 6 A-6F is six kinds of structural representations that each spring tongue all extends elastic matrix laterally;
Fig. 7 A-7F is six kinds of structural representations that each spring tongue all extends elastic matrix to the inside;
Fig. 8 A-8F is seven kinds of structural representations that partial spring tongue extends to the inside, another part spring tongue extends elastic matrix to the inside;
Fig. 9 A-9C show spring tongue of the present invention respectively static, forward rotate, reverse rotation time stressed schematic diagram (figure Elastic matrix represents with flat);
Number in the figure illustrates:
01-pedestal,
11-inner peripheral surface, 12-lining;
02-tension arms,
21-outer circumferential face;
03-mandrel;
04-torsion spring;
05-belt wheel;
06-damping member, 06A-damping member,
61-elastic element, 61A-elastic element,
611-elastic matrix, 611a-elastic matrix,
612-spring tongue, 612a-spring tongue,
62-damping friction block, 62A-damping friction block,
621-skeleton, 621a-skeleton,
Concave space in 6211-, concave space in 6211a-,
622-friction piece, 622a-friction piece.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.
First drum-type asymmetric damping automatic belt tightener of the present invention can be set forth by the preferred embodiment shown in Fig. 1, and the stretcher shown in Fig. 1 comprises:
The pedestal 01(diagram mandrel 03 with mandrel 03 is Split type structure with pedestal 01, is connected as a single entity by die casting, during actual enforcement, also can be made as integrally by the two by the machining such as punching press, riveted joint mode; By the mode such as die casting, cast, the two can also be made integrative-structure);
Tension arms 02), its tubular portion is assemblied on mandrel 03 and can swings relative to pedestal 01 around mandrel 03, and pedestal 01 and tension arms 02 set up inner peripheral surface 11, outer circumferential face 21 separately, and the diameter of outer circumferential face 21 is less than the diameter of inner peripheral surface 11;
Torsion spring 04, it applies the elastic force deflected to tension direction (direction of lax torsion spring) to tension arms 02;
Belt wheel 05, its assembling (as by bearing pin and bearing) is on tension arms 02;
Damping member 06, it is circular, it is between outer circumferential face 21 and inner peripheral surface 11, this damping member 06 comprises elastic element 61 (can be the elasticity original paper that two or more are set up in parallel during concrete enforcement) and some damping friction blocks 62, elastic element 61 comprises the elastic matrix 611 of ring-type and provides some spring tongues 612 of lasting radical elasticity, spring tongue 612 from elastic matrix 611 to radial direction extend and to peripheral, oblique, spring tongue 612 configures damping friction block 62 (see Fig. 4, that each spring tongue 612 configures a damping friction block 62 in figure), damping friction block 62 by the elastic force pressure holding of spring tongue 612 on inner peripheral surface 11 or outer circumferential face 21, when the true dip direction of spring tongue 612 makes tension arms rotate relative to pedestal or when having rotation trend, the damping force that damping friction block 62 produces with inner peripheral surface or outer circumferential face is (general to a direction at tension arms 02, the loading direction of belt to tension arms, tighten the direction of torsion spring, the opposite direction of the tension direction of tension arms) when swinging or the trend of swing time large, (general to another direction at tension arms, the uninstall direction of belt to tension arms, the direction of lax torsion spring, the tension direction of tension arms) when swinging or the trend of swing time little, it is asymmetrical for realizing the damping that both direction when tension arms 02 rotates relative to pedestal 01 is subject to.A damping friction block can also be fitted on two or more spring tongue during concrete enforcement.
The realization of this asymmetric damping is the true dip direction based on spring tongue, when belt tighten tension arms is loaded time, tension arms is forced (namely to tighten the direction of torsion spring to the opposite direction of tension direction, swing on rear side of paper around mandrel relative to the tension arms in Fig. 1) swing or have swing trend, and impel the elastic element clockwise direction in Fig. 2 to rotate or rotation trend, damping friction block is not only subject to the original radial tension of spring tongue and produces frictional damping, but also be subject to the radial component of the supporting force in spring-latch head tilt direction, this component turn increases the damping hindering tension arms, when belt slack unloads from tension arms, tension arms is then to tension direction (the i.e. direction of lax torsion spring, swing on front side of paper around mandrel relative to the tension arms in Fig. 1) swing or have swing trend, and impelling the elastic element in Fig. 2 counterclockwise to rotate or rotation trend, damping friction block is only subject to the tension force also less than the original radial tension of spring tongue and produces frictional damping, thus realize the asymmetry of belt to damping during tension arms compression and decompression.
Spring tongue is static, forward rotate, reverse rotation time stressedly to be illustrated in Fig. 9 A-9C respectively: see Fig. 9 A, when tension arms is motionless, the spring tongue 612 of elastic element 61 is in radial compression, spring tongue 612 gives damping friction block radical elasticity, is also subject to an onesize reaction force Q simultaneously; See Fig. 9 B, when being subject to forward the rotation of (direction that in figure, dotted arrow represents, dextrad), spring tongue is N to the radial pressure of damping friction block, and spring tongue 612 is subject to the frictional force (f is friction factor) of N*f; See Fig. 9 C, when being subject to the reverse (direction that in figure, dotted arrow represents, left-hand) rotation time, spring tongue is P to the radial pressure of damping friction block, spring tongue 612 is subject to the frictional force (f is friction factor) of P*f, can determine, P>Q>N through mechanical analysis, frictional force P*f during reverse rotation is greater than frictional force N*f when forward rotating, and realizes the different asymmetry turned to.
Described damping member 06A can also be shown in Fig. 3, tighten when belt and impel the elastic element 61A clockwise direction in Fig. 3 to rotate or rotation trend, damping friction block 62A is not only subject to the original radial tension of spring tongue 612a and produces frictional damping, but also being subject to the radial component of the supporting force of spring tongue 612a true dip direction, this component turn increases the damping hindering tension arms; Impel elastic element in Fig. 3 counterclockwise to rotate or rotation trend when belt slack, damping friction block is only subject to the tension force also less than the original radial tension of spring tongue and produces frictional damping; Thus realize the asymmetry of belt to damping during tension arms compression and decompression.
In view of the enlightenment that Fig. 2 gives, elastic matrix 611 is relative to the fixing assembling of outer circumferential face (outer circumferential face shown in Fig. 1 is located on tension arms 02), each spring tongue 612 extends the outside to elastic matrix 611 and by damping friction block 62 pressure holding of correspondence on inner peripheral surface 11 (diagram inner peripheral surface is located on pedestal), the true dip direction of each spring tongue is identical (tilting clockwise shown in Fig. 2).Therefore the concrete structure of elastic element can be the various structures shown in Fig. 6 A-6F, in Fig. 6 A-6F, represents elastic matrix with alphabetical A, represents spring tongue with letter b.
In view of the enlightenment that Fig. 3 gives, elastic matrix also can relative to the fixing assembling of inner peripheral surface, and each spring tongue extends the inner side to elastic matrix and by the damping friction block pressure holding of correspondence on outer circumferential face, the true dip direction of each spring tongue is identical.Therefore the concrete structure of elastic element can be the various structures shown in Fig. 7 A-7F, in Fig. 7 A-7F, represents elastic matrix with alphabetical A, represents spring tongue by letter C.
In view of Fig. 2, the enlightenment that Fig. 3 gives, elastic matrix also can relative to outer circumferential face, inner peripheral surface rotatably assembles, part spring tongue extends outside to elastic matrix and by the damping friction block pressure holding of correspondence on inner peripheral surface, another part spring tongue extend to elastic matrix inner side and by the damping friction block pressure holding of correspondence on outer circumferential face, the true dip direction extended to the spring tongue in the outside of elastic matrix is contrary to the true dip direction of the spring tongue of the inner side of elastic matrix with extension, thus make all spring tongues when tension arms produces swing or the trend of swing to a direction, damping friction block is not only subject to the original radial tension of spring tongue and produces frictional damping, but also be subject to the radial component of the supporting force in spring-latch head tilt direction, this component turn increases the damping hindering tension arms, all spring tongues are when tension arms produces swing or the trend of swing to another direction, and damping friction block is only subject to the tension force also less than the original radial tension of spring tongue and produces frictional damping, thus realize the asymmetry of belt to damping during tension arms compression and decompression.Therefore the concrete structure of elastic element can be the various structures shown in Fig. 8 A-8G, in Fig. 8 A-8G, represents elastic matrix with alphabetical A, represents outward extending spring tongue with alphabetical D, represents the spring tongue extended internally with letter e.
Although outer circumferential face 21 shown in Fig. 1 is positioned on tension arms 02, inner peripheral surface 11 is positioned on pedestal 01, do not repel that outer circumferential face is positioned on pedestal, inner peripheral surface is positioned on tension arms.Regardless of the position of outer circumferential face, inner peripheral surface, described in above, all determine the structure of damping member and the true dip direction of spring tongue thereof by force analysis, thus realize the asymmetry of belt to damping during tension arms compression and decompression by assembling.
The design being tending towards better to make damping member from structure, spring tongue be edge from elastic matrix or/and the die-cut distortion in intermediate portion forms, concrete:
Spring tongue shown in Fig. 6 A forms in two edges die-cut distortion laterally of elastic matrix, and the spring tongue being distributed in two edges is symmetrical side by side at circumferencial direction;
Spring tongue shown in Fig. 6 B is that die-cut distortion laterally forms in the intermediate portion of elastic matrix;
Spring tongue shown in Fig. 6 C forms in two edges die-cut distortion laterally of elastic matrix, and the spring tongue being distributed in two edges misplaces at circumferencial direction;
Spring tongue shown in Fig. 6 D forms in an edge die-cut distortion laterally of elastic matrix;
Spring tongue shown in Fig. 6 E is on the basis of structure shown in Fig. 6 B, and locate when an edge of elastic matrix arranges breach for assembling again, this breach equally also can be applicable to the elastic element of other structure;
Spring tongue shown in Fig. 6 F is on the basis of structure shown in Fig. 6 D, and locate when another edge of elastic matrix arranges breach for assembling again, this breach equally also can be applicable to the elastic element of other structure;
Spring tongue shown in Fig. 7 A forms in two edges die-cut distortion to the inside of elastic matrix, and the spring tongue being distributed in two edges is symmetrical side by side at circumferencial direction;
Spring tongue shown in Fig. 7 B forms in an edge die-cut distortion to the inside of elastic matrix;
Spring tongue shown in Fig. 7 C is that die-cut distortion to the inside forms in the intermediate portion of elastic matrix;
Spring tongue shown in Fig. 7 D forms in two edges die-cut distortion to the inside of elastic matrix, and the spring tongue being distributed in two edges misplaces at circumferencial direction;
Spring tongue shown in Fig. 7 E is on the basis of structure shown in Fig. 7 B, and locate when another edge of elastic matrix arranges breach for assembling again, this breach equally also can be applicable to the elastic element of other structure;
Spring tongue shown in Fig. 7 F is on the basis of structure shown in Fig. 7 C, and locate when an edge of elastic matrix arranges breach for assembling again, this breach equally also can be applicable to the elastic element of other structure;
Spring tongue shown in Fig. 8 A, a part forms in two edges die-cut distortion laterally of elastic matrix, and the spring tongue being distributed in two edges is symmetrical side by side at circumferencial direction; Another part is that die-cut distortion to the inside forms in the intermediate portion of elastic matrix; Two-part spring tongue is in circumferencial direction dislocation and true dip direction is contrary;
Spring tongue shown in Fig. 8 B, a part forms in two edges die-cut distortion to the inside of elastic matrix, and the spring tongue being distributed in two edges is symmetrical side by side at circumferencial direction; Another part is that die-cut distortion laterally forms in the intermediate portion of elastic matrix; Two-part spring tongue is in circumferencial direction dislocation and true dip direction is contrary;
Spring tongue shown in Fig. 8 C, be all that die-cut distortion forms in the intermediate portion of elastic matrix, a part extends laterally, and a part extends to the inside; Two-part spring tongue is at circumferencial direction interval and true dip direction is contrary one by one;
Spring tongue shown in Fig. 8 D, a part forms in an edge die-cut distortion laterally of elastic matrix, and another part is that die-cut distortion to the inside forms in another edge of elastic matrix, and two-part spring-latch head tilt direction is contrary;
Spring tongue shown in Fig. 8 E, a part forms in an edge die-cut distortion to the inside of elastic matrix, and another part is that die-cut distortion laterally forms in the intermediate portion of elastic matrix, and two-part spring-latch head tilt direction is contrary;
Spring tongue shown in Fig. 8 F, a part forms in an edge die-cut distortion to the inside of elastic matrix, and another part is that die-cut distortion laterally forms in another edge of elastic matrix, and two-part spring-latch head tilt direction is identical.
In order to avoid stress deformation when damping friction block produces resistance, and ensure its friction area, the block of damping friction shown in Fig. 4 62 comprises the overall skeleton 621 of formation one and friction piece 622, skeleton 621 is provided with the interior concave space 6211 be absorbed in for spring-latch head, and during manufacture, skeleton and friction piece can be entrenched togather; Similar structure also has expression in Figure 5.
In order to ensure friction area, each damping friction block has the rubbing surface adapted with the radian of inner peripheral surface or outer circumferential face, thus, the friction surface of the damping friction block inside elastic matrix can be made to be positioned on same cylndrical surface, and the friction surface of the damping friction block outside elastic matrix is also positioned on same cylndrical surface.
During concrete assembling, one end of torsion spring 04 to be supported on pedestal 01 or on the component fixing with pedestal, and the other end to be supported on tension arms 02 or on the component fixing with tension arms, can to produce tension force after pretension.
During concrete enforcement, according to structural needs, pedestal 01 can comprise body and the attachment that is attached on body or/and the extending body (as namely pedestal in Fig. 1 comprises a lining 12, inner peripheral surface 11 is formed on lining 12) that extends from body; Tension arms also can comprise body and the attachment that is attached on body or/and the extending body that extends from body.
And the manufactured materials at damping friction block and inner peripheral surface or outer circumferential face contact friction position is high heat-resisting thermoplastic, concrete, high heat-resisting thermoplastic forms for adding any one additive following in any one basic material following, described basic material comprises polyamide 46(PA46 or nylon 46), polyamide 66 (PA66 or nylon66 fiber), polyamide 6 (PA6 or nylon 6), poly-hexamethylene terephthalamide (PA6T), polyphthalamide (PPA), polyether-ether-ketone (PEEK), polyphenylene sulfide (PPS), described additive comprises the glass fibre (GF) of 20%-60%, the carbon fiber (CF) of 20%-60%, the aramid fibre (PPTA) of 20%-60%, the phenolic fibre (PHE) of 20%-60%, described percentage composition is the mass percent of additive in manufactured materials, certainly can also be other high heat-resisting thermoplastic (on high heat-resisting polyamide basis or thermoplastic on other high heat-resisting plastics basis).
Claims (12)
1. drum-type asymmetric damping automatic belt tightener, is characterized in that comprising:
There is the pedestal (01) of mandrel (03);
Tension arms (02), it is assemblied on described mandrel (03) and can swings relative to pedestal around described mandrel (03), described pedestal (01) and tension arms (02) set up relatively turnable inner peripheral surface (11), outer circumferential face (21) separately, and the diameter of described outer circumferential face is less than the diameter of described inner peripheral surface;
Torsion spring (04), it applies the elastic force to the deflection of belt tension direction to described tension arms;
Belt wheel (05), it is assemblied on described tension arms (02);
Damping member (06, 06A), it is circular and is positioned between described outer circumferential face (21) and inner peripheral surface (11), this damping member (06, 06A) comprise elastic element (61, 61a) with some damping friction blocks (62, 62a), described elastic element (61, 61a) comprise the elastic matrix (611 of ring-type, 611a) with the some spring tongues (612 providing lasting radical elasticity, 612a), described spring tongue (612, 612a) from described elastic matrix (611, to radial direction extension and to peripheral, oblique 611a), described spring tongue (612, damping friction block (62 612a) described in upper configuration, 62a), described damping friction block (62, 62a) by described spring tongue (612, elastic force pressure holding 612a) is on described inner peripheral surface (11) or outer circumferential face (21), described spring tongue (612, when true dip direction 612a) makes described tension arms rotate relative to pedestal or when having rotation trend, described damping friction block (62, damping force 62a) produced with described inner peripheral surface (11) or outer circumferential face (21) when described tension arms swings to a direction or the trend of swing time large, when described tension arms swings in the other direction or swing trend time little.
2. drum-type asymmetric damping automatic belt tightener according to claim 1, it is characterized in that: described outer circumferential face (21) is positioned on described tension arms (02), described inner peripheral surface (11) is positioned on described pedestal (01), or described outer circumferential face is positioned on described pedestal, described inner peripheral surface is positioned on described tension arms.
3. drum-type asymmetric damping automatic belt tightener according to claim 1, it is characterized in that: described elastic matrix (611) is relative to the fixing assembling of described outer circumferential face (21), each described spring tongue (612) extends the outside to described elastic matrix (611) and by damping friction block (62) pressure holding of correspondence on described inner peripheral surface (11), the true dip direction of each described spring tongue (612) is identical.
4. drum-type asymmetric damping automatic belt tightener according to claim 1, it is characterized in that: described elastic matrix is relative to the fixing assembling of described inner peripheral surface, each described spring tongue extends the inner side to described elastic matrix and by the damping friction block pressure holding of correspondence on described outer circumferential face, the true dip direction of each described spring tongue is identical.
5. drum-type asymmetric damping automatic belt tightener according to claim 1, it is characterized in that: described elastic matrix is relative to described outer circumferential face, inner peripheral surface rotatably assembles, spring tongue described in a part extends outside to described elastic matrix and by the damping friction block pressure holding of correspondence on described inner peripheral surface, spring tongue described in another part extends inner side to described elastic matrix and by the damping friction block pressure holding of correspondence on described outer circumferential face, the true dip direction extended to the spring tongue in the outside of described elastic matrix is contrary to the true dip direction of the spring tongue of the inner side of described elastic matrix with extension.
6. the drum-type asymmetric damping automatic belt tightener according to any one of claim 1,3-5, is characterized in that: described spring tongue is that edge from described elastic matrix is or/and the die-cut distortion in intermediate portion forms.
7. drum-type asymmetric damping automatic belt tightener according to claim 1, it is characterized in that: described damping friction block (62,62a) comprise the skeleton (621 that formation one is overall, 621a) with friction piece (622,622a), described skeleton (621,621a) is provided with for described spring tongue (612, the interior concave space (6211,6211a) 612a) be absorbed in.
8. drum-type asymmetric damping automatic belt tightener according to claim 1, is characterized in that: each described damping friction block (62,62a) has the rubbing surface adapted with the radian of described inner peripheral surface or outer circumferential face.
9. drum-type asymmetric damping automatic belt tightener according to claim 1, it is characterized in that: one end of described torsion spring (04) is supported on upper or fixing with the described pedestal component of described pedestal (01), and the other end is supported on upper or fixing with the described tension arms component of described tension arms (02).
10. drum-type asymmetric damping automatic belt tightener according to claim 1, is characterized in that: described pedestal (01) comprise body and the attachment that is attached on body or/and the extending body that extends from body; Described tension arms (02) comprise body and the attachment that is attached on body or/and the extending body that extends from body.
11. drum-type asymmetric damping automatic belt tighteners according to claim 1, is characterized in that: the manufactured materials at described damping friction block and described inner peripheral surface or outer circumferential face contact friction position is high heat-resisting thermoplastic.
12. drum-type asymmetric damping automatic belt tighteners according to claim 11, it is characterized in that: the thermoplastic that described height is heat-resisting forms for adding any one additive following in any one basic material following, described basic material comprises polyamide 46, polyamide 66, polyamide 6, poly-hexamethylene terephthalamide, polyphthalamide, polyether-ether-ketone, polyphenylene sulfide, described additive comprises the glass fibre of 20%-60%, the carbon fiber of 20%-60%, the aramid fibre of 20%-60%, the phenolic fibre of 20%-60%, described percentage composition is the mass percent of additive in manufactured materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410557008.8A CN104358846B (en) | 2014-10-20 | 2014-10-20 | Drum-type asymmetric damping automatic belt tightener |
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| CN201410557008.8A CN104358846B (en) | 2014-10-20 | 2014-10-20 | Drum-type asymmetric damping automatic belt tightener |
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| CN104358846A true CN104358846A (en) | 2015-02-18 |
| CN104358846B CN104358846B (en) | 2017-03-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387691A (en) * | 2017-07-17 | 2017-11-24 | 杭州雷迪克节能科技股份有限公司 | A kind of asymmetric damping structure tension wheel shaft bearing unit |
| CN111207192A (en) * | 2019-09-30 | 2020-05-29 | 宁波丰茂远东橡胶有限公司 | Automatic tensioner with circular damping sleeve |
| CN112722700A (en) * | 2020-12-31 | 2021-04-30 | 江苏帝全自动化机械有限公司 | High-speed case unpacking machine with anti-jumping belt structure |
| CN112973508A (en) * | 2021-02-11 | 2021-06-18 | 李海旺 | Printing and dyeing stirring equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503261A (en) * | 1994-07-15 | 1996-04-02 | Automotive Concepts Technology | Bi-directional centrifugal clutch |
| US6231465B1 (en) * | 1999-08-13 | 2001-05-15 | Dayco Products, Inc. | Belt tensioner assembly with unidirectional damping |
| US20070142148A1 (en) * | 2005-11-22 | 2007-06-21 | Dayco Products, Llc | Belt tensioner utilizing asymmetric motion control |
| CN101147012A (en) * | 2005-03-21 | 2008-03-19 | 利滕斯汽车合伙公司 | Belt tensioner with wear compensation |
| US20140274506A1 (en) * | 2013-03-15 | 2014-09-18 | Dayco Ip Holdings, Llc | Accessory drive decoupler |
-
2014
- 2014-10-20 CN CN201410557008.8A patent/CN104358846B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503261A (en) * | 1994-07-15 | 1996-04-02 | Automotive Concepts Technology | Bi-directional centrifugal clutch |
| US6231465B1 (en) * | 1999-08-13 | 2001-05-15 | Dayco Products, Inc. | Belt tensioner assembly with unidirectional damping |
| CN101147012A (en) * | 2005-03-21 | 2008-03-19 | 利滕斯汽车合伙公司 | Belt tensioner with wear compensation |
| US20070142148A1 (en) * | 2005-11-22 | 2007-06-21 | Dayco Products, Llc | Belt tensioner utilizing asymmetric motion control |
| US20140274506A1 (en) * | 2013-03-15 | 2014-09-18 | Dayco Ip Holdings, Llc | Accessory drive decoupler |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387691A (en) * | 2017-07-17 | 2017-11-24 | 杭州雷迪克节能科技股份有限公司 | A kind of asymmetric damping structure tension wheel shaft bearing unit |
| CN107387691B (en) * | 2017-07-17 | 2023-06-09 | 杭州雷迪克节能科技股份有限公司 | Asymmetric damping structure tensioning wheel bearing unit |
| CN111207192A (en) * | 2019-09-30 | 2020-05-29 | 宁波丰茂远东橡胶有限公司 | Automatic tensioner with circular damping sleeve |
| CN111207192B (en) * | 2019-09-30 | 2021-01-15 | 宁波丰茂远东橡胶有限公司 | Automatic tensioner with circular damping sleeve |
| CN112722700A (en) * | 2020-12-31 | 2021-04-30 | 江苏帝全自动化机械有限公司 | High-speed case unpacking machine with anti-jumping belt structure |
| CN112973508A (en) * | 2021-02-11 | 2021-06-18 | 李海旺 | Printing and dyeing stirring equipment |
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| CN104358846B (en) | 2017-03-01 |
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