CN103831985A - Giant engineering tire forming drum - Google Patents
Giant engineering tire forming drum Download PDFInfo
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- CN103831985A CN103831985A CN201410070254.0A CN201410070254A CN103831985A CN 103831985 A CN103831985 A CN 103831985A CN 201410070254 A CN201410070254 A CN 201410070254A CN 103831985 A CN103831985 A CN 103831985A
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- drum
- narrow
- pin shaft
- shoulder
- watt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/24—Drums
- B29D30/244—Drums for manufacturing substantially cylindrical tyre components with cores or beads, e.g. carcasses
- B29D30/248—Drums of the undercut type without toroidal expansion, e.g. with provisions for folding down the plies, for positioning the beads under the surface of the drum
Abstract
The invention relates to a giant engineering tire forming drum which comprises wide drum tiles, narrow drum tiles, a drum tile expansion and contraction mechanism and a narrow drum shoulder contraction mechanism, wherein a narrow drum tile expansion and contraction mechanism is suspended on the inner sides of the narrow drum tiles, and is used for guiding narrow drum shoulders to be expanded and contracted in a direction forming a certain included angle with the axis of the forming drum; the narrow drum shoulders of every two adjacent narrow drum tiles have different amounts of contraction, and are arranged in different layers in a superimposed state; the drum tile expansion and contraction mechanism forms a triangular support to the wide and narrow drum tiles in an unfolded state. According to the giant engineering tire forming drum, the narrow drum shoulder contraction mechanism is contracted in the vicinity of a main connecting rod and an auxiliary connecting rod when being folded, so that a folding space can be fully utilized, and high folding ratio is ensured; the narrow drum shoulders are arranged in different layers in a folded state, and the phenomenon of lateral cutting of the narrow shoulder drums is avoided; the narrow drum shoulders are contracted towards the center of the forming drum along a guide rail forming a certain included angle with the axis of the forming drum, so that the phenomenon of tangent tire blank squeezing caused by the axial contraction of the drum shoulders is avoided, and the forming quality of a giant engineering tire is improved; the drum tile expansion mechanism forms the triangular support in an unfolded state, so that the rigidity of the forming drum is improved.
Description
Technical field
The invention belongs to forming materials field, particularly, relate to a kind of giant-scale engineering tyre assembly drum.
Background technology
At present, engineering tyre assembly drum is mainly link-type and is folded mechanically assembly drum, and by wide drum watt, narrow drum watt, and drum watt expansion mechanism forms.Drum watt expansion mechanism comprises: assembly drum main core body supporting with building machine for engineering tire brake socket, the assembly drum rotating relative to the assembly drum main core body pair core body that is connected with forming machine main spindle flat key, and hang on wide drum watt expansion mechanism and narrow drum watt expansion mechanism between the two.When forming machine completes after the moulding of a tire base, braking forming machine brake cover, rotary forming machine main shaft, be retracted to assembly drum to be less than wheel tyre bead mouth D
1spatial dimension within, i.e. closed state, to take off tire base; When next tires of moulding, forming machine main spindle and forming machine brake cover oppositely relatively rotate, and it is D that superimposed assembly drum is deployed into external diameter
0shaping work state, i.e. deployed condition, so that next tire base of moulding.
The structural design of link-type assembly drum and its deployment diameter D
0its minimum of contraction diameter (wheel tyre bead mouth diameter) D relatively
1ratio, folding than (or shrinkage ratio) D
0/ D
1parameter has substantial connection.In the time that this ratio is less than 1.33, can adopt full drum shoulder shaping structures drum, in the time that this ratio is greater than 1.33, needs to adopt to unload and rouse shoulder structure.Giant-scale engineering tyre assembly drum generally adopts C type drum shoulder curve, and is foldingly greater than 1.45 than generally, at present, all needs to adopt and unloads drum and take on structure.Before assembly drum is superimposed, bulging shoulder need be unloaded, so that bulging watt superimposed; And before tire building, need drum shoulder to load onto, so that the moulding of tire base.Because single drum shoulder weighs more than 20 kilograms, 24 such drum shoulders need to be dismantled respectively and install to wall scroll tire building, and labor strength is huge, and shaping efficiency is very low.
The Russia Ya Luo Slav Ю of engineering college. И. С а м o х в а л o в (" world rubber industry " 06 phase 82-86 in 1988) has provided a kind of engineering tyre assembly drum, assembly drum main core body is established hollow main shaft and the circumferentially uniform suspension pin shaft hole of peripheral hardware one row of unidirectional screw mandrel in being, the secondary core body of assembly drum two ends are respectively with circumferentially uniform suspension pin shaft hole of a row, inner with axially directed screw is connected, and moves axially along hollow main shaft.The wide drum of this assembly drum watt adopts one group of parallel fulcrum lever to support, and one end of two parallel fulcrum levers is hinged with the pair of pin axis hole on assembly drum pair core body, and the pair of pin axis hole on the other end and wide drum watt is hinged.Hinged with a contiguous pole by connecting rod with the pin shaft hole on the affixed assembly drum main core body of hollow main shaft.In the time that the screw mandrel in hollow main shaft rotates, through the screw mandrel screw movement conversion mechanism of hollow main shaft inside, rotatablely moving of forming machine main spindle is converted to moving axially of the secondary core body of assembly drum.The movement vertically of the secondary core body of assembly drum, pulls the pole being attached thereto to deflect by the connecting rod being connected with assembly drum main core body, and same angular deflection occurs another parallel fulcrum lever, guides thus wide drum watt and shrinks or launch.The connected mode of the connected mode of narrow drum watt and assembly drum main core body, secondary core body and wide drum watt is identical.For the bulging shoulder that makes narrow drum watt can shrink, near a pole and narrow drum watt hinging pin shaft, be provided with a driving lever groove, this driving lever groove is stirred two side links and is the anti-parallelogram mechanism of sector gear.Two sector wheel and rack engagements, drive respectively the drum shoulder of narrow drum watt both sides flexible.Because sector gear takes up space greatlyr, limit the further decline of the folding ratio of such assembly drum, be generally not more than 1.45.Particularly, because the contraction drum shoulder of such assembly drum is distributed in same aspect, folding than reaching requirement for making, must shrink drum and take on the Partial Resection of side physical intervention, the destruction of pressure roller to tire base while causing moulding affects the ride comfort of pressure roller lateral compressive movements simultaneously.
Number of patent application is the disclosed tire assembly drum of Chinese invention patent that ZL200710050947.3, publication number are CN101186112A, adopt similar two parallel fulcrum lever structures (expansion completed state), but two parallel fulcrum levers are connected with the secondary core body of two assembly drums respectively, the secondary core body of this two assembly drum is under the driving of Bidirectional-screw, vertically in opposite directions or reverse motions, drive the harmomegathus of assembly drum drum watt, and adopt the drum shoulder on air cylinder driven drum watt flexible vertically.Because the axially movable size of this secondary core body of assembly drum two assembly drums is oversize, to such an extent as to do not have enough spaces to shrink for drum shoulder.
Number of patent application is ZL201110037112.0, publication number is the disclosed tire assembly drum of the Chinese invention patent of CN102126297A, and patent No. ZL200620083428.8, Granted publication number is the disclosed tire assembly drum of Chinese utility model patent of CN2837056Y, also has similar problem.Although what the latter adopted is C type drum shoulder curve, because the contractility of narrow Gu Wagujian axial shrinkage mechanism is limited, can not meet the requirement of C type drum shoulder curve assembly drum shrinkage ratio.Therefore, above-mentioned three class tire assembly drums can only be served as folding smaller (≤1.34), and the tire assembly drum that drum shoulder curve is L-type, as heavy load radial tire assembly drum etc.
From current existing contracting drum shoulder tire assembly drum patented technology, ubiquitous defect is: it is larger that the secondary core body of assembly drum moves axially size, make drum shoulder shrink space limited, can not meet super large folding than the moulding process demand of (>=1.45) giant-scale engineering tyre; The drum shoulder shrinking adopts with layer to be arranged, the side physical intervention part of narrow drum shoulder needs excision, affects forming press-roller motion ride comfort, infringement tire building quality; Particularly, because drum shoulder adopts axial horizontal extension mode, wide drum watt all needs to install additional cover plate with narrow drum watt, to will stretch, gap hides, and makes the smooth-going motion of pressure roller, but, in the time of drum shoulder axial shrinkage, relative motion between drum shoulder and the cover plate shrinking will produce serious tangential extruding to tire base at side edge thereof place, destroys the uniformity that cord distributes vertically, reduces the Forming Quality of tire.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of giant-scale engineering tyre assembly drum, this kind of giant-scale engineering tyre assembly drum and the collapsible building machine for engineering tire interface kit of existing machinery, its narrow drum shoulder is along inwardly shrinking with the assembly drum axis direction that forms an angle, its N-Side surf does not produce physical intervention, is applicable to large folding than the moulding of giant-scale engineering tyre.
For achieving the above object, the present invention adopts following proposal:
A kind of giant-scale engineering tyre assembly drum, comprises drum watt group, drum watt expansion mechanism, narrow drum shoulder contracting mechanism.
Drum watt group, comprises Kuan Guwa, narrow drum watt; Described wide drum watt is circumferentially alternately evenly arranged at giant-scale engineering tyre assembly drum with narrow drum watt, and uniform number is six; The inner side of described wide drum watt is with two parallel pin shaft holes, and axially two ends are with the wide drum shoulder being fixedly connected with; The axial two ends of described narrow drum watt respectively with along and the horizontal axis flexible narrow drum shoulder of direction that forms an angle; Described narrow drum watt two ends, inner side are respectively equipped with left narrow drum shoulder supporter and right narrow drum shoulder supporter, left narrow drum shoulder supporter is with the left rail forming an angle with horizontal axis, and be provided with pin shaft hole by centre, the narrow drum shoulder supporter in the described right side with the symmetrical right guide rail of left rail, and at the horizontal guide groove that is provided with certain length by centre; The narrow drum shoulder of narrow drum watt left end is fixedly connected with left guide rod and left narrow drum shoulder connector, and left guide rod inserts among the left rail on left narrow drum shoulder supporter, the narrow drum shoulder of narrow drum watt right-hand member is fixedly connected with right guide rod and right narrow drum shoulder connector, and right guide rod inserts among the right guide rail on right narrow drum shoulder supporter.
Drum watt expansion mechanism, comprising: assembly drum movement, wide drum watt expansion mechanism, narrow drum watt expansion mechanism; Described assembly drum movement is made up of assembly drum main core body, the secondary core body of assembly drum and screw mechanism; Described assembly drum main core body is formed by the cylindrical configuration with centre bore, its left end with a row, right-hand member with six circumferential uniform suspension pin shaft holes of two rows, it is parallel with the axis that a row inside right-hand member hangs pin shaft hole that left end one row hangs the axis of pin shaft hole, the axis angle that hangs pin shaft hole with right-hand member outside one row is 30 degree, and the axis of all suspension pin shaft holes is all vertical with the centre bore axis of assembly drum main core body; The secondary core body of described assembly drum is formed by the cylindrical configuration with centre bore, its middle part and right-hand member are respectively equipped with six circumferential uniform suspension pin shaft holes of two rows, between the axis of two row's suspension pin shaft holes, angle is 30 degree, and the axis of all suspension pin shaft holes is all vertical with the centre bore axis of the secondary core body of assembly drum; Described screw mechanism is by the helical screw being connected with flat key with forming machine main spindle, and the embedded screw that is embedded into the secondary core body centre bore of assembly drum forms; The secondary core body of described assembly drum moves vertically relative to assembly drum main core body.
Described wide drum watt expansion mechanism is by two wide drum watt pole and intermediate connecting rods with three parallel uniform conllinear pin shaft holes, the isometric interior small rod with two parallel pin axis holes and outer small rod, and form with the wide drum watt drive link of two parallel pin axis holes; Described wide drum watt pole and intermediate connecting rod are hinged by centre bore separately, and described outer small rod and interior small rod are connected to the two ends of intermediate connecting rod; In deployed condition, outer small rod, intermediate connecting rod, interior small rod three conllinear, form X-type with wide drum watt pole and support; The pin shaft hole of wide drum watt pole outer end and the pin shaft hole of outer small rod outer end respectively with wide drum watt on two pin shaft holes hinged, the pin shaft hole of the pin shaft hole of interior small rod the inner and wide drum watt pole the inner respectively with assembly drum main core body on left end to hang the suspension pin shaft hole of pin shaft hole, right-hand member inner side hinged; The suspension pin shaft hole at the secondary core body of wide drum watt drive link one end and assembly drum middle part is hinged, the other end and interior small rod and intermediate connecting rod to be connected bearing pin hinged;
Described narrow drum watt expansion mechanism by two isometric, with master connecting-rod and the slave connecting rod of three parallel uniform pin shaft holes, and cross sliding clock forms; Described master connecting-rod and slave connecting rod are hinged in central hole separately, and described cross sliding clock moves in the horizontal guide groove of the narrow drum shoulder supporter in the narrow drum watt right side, and hinged with the outer end pin shaft hole of slave connecting rod; Pin shaft hole and master connecting-rod outer end pin shaft hole on the narrow drum shoulder supporter of a described narrow drum watt left side are hinged, the extension pin shaft hole in the pin shaft hole of described master connecting-rod the inner and assembly drum main core body right-hand member outside is hinged, and the suspension pin shaft hole of the secondary core body right-hand member of the pin shaft hole of described slave connecting rod the inner and assembly drum is hinged.
Narrow drum shoulder contracting mechanism, comprising: fork, left space connecting rod, right space connecting rod, contracting drum shoulder connecting rod; Described left space connecting rod, right space connecting rod and contracting drum shoulder connecting rod two ends are all with oscillating bearing; Described fork is around the suspension bearing pin rotation of narrow drum watt medial surface, one side with two pin shaft holes, opposite side with a pin shaft hole, wherein, with outside pin shaft hole and the left space rod hinge connection of two pin shaft hole one sides, middle pin shaft hole and contracting drum shoulder rod hinge connection, with pin shaft hole and the right space rod hinge connection of pin shaft hole one side; The other end of described left space connecting rod is hinged with left narrow drum shoulder connector, and the other end of described right space connecting rod is hinged with right narrow drum shoulder connector, and the other end of described contracting drum shoulder connecting rod is connected with the cross sliding clock in the horizontal guide groove of right narrow drum shoulder supporter; The swing of fork is driven by the contracting drum shoulder connecting rod being connected with cross sliding clock, on fork, other three pin shaft holes are to the distance of centrepin axis hole, amount of contraction on the narrow drum shoulder in a left side, right narrow drum shoulder has important impact, and on the fork of adjacent two narrow drums watt, other three pin shaft holes are taken as different value to the distance of centrepin axis hole.
Compared with prior art, the present invention has following beneficial effect: narrow drum shoulder contracting mechanism is all arranged in narrow drum watt inner side, when superimposed, be contracted in it and support near major and minor connecting rod, thereby can make full use of superimposed space, very large (>=1.6) of folding ratio; The narrow drum shoulder shrinking is arranged in different layers at closed state, narrow drum shoulder side does not occur and cut phenomenon; Shrink to assembly drum center with the guide rail that assembly drum axis forms an angle on narrow drum shoulder edge, and the tire base of having avoided bulging shoulder axial shrinkage to produce tangentially pushes phenomenon, has improved the Forming Quality of giant-scale engineering tyre; Wide drum watt all adopts gusseted mode with narrow drum watt in deployed condition, and the rigidity of structure is high, and the secondary core body of assembly drum only bears the axial load of narrow drum watt.Therefore, the present invention has overcome the outstanding defect that existing giant tyre assembly drum exists, have folding than large (>=1.6), simple in structure, rigidity is high, do not produce that tire base tangentially pushes, the excellent feature of tire base Forming Quality, is particularly suitable as the large folding than (1.4～1.62) engineering tyre assembly drum of C type drum shoulder curve.
Accompanying drawing explanation
Fig. 1 a is the axial cutaway view of giant-scale engineering tyre assembly drum deployed condition;
Fig. 1 b is the A-A generalized section in Fig. 1 a;
Fig. 1 c is assembly drum core body schematic side view;
Fig. 1 d is another schematic side view of assembly drum core body;
Fig. 1 e is the B-B generalized section in Fig. 1 b;
Fig. 1 f is giant-scale engineering tyre assembly drum deployed condition axial centre cross-sectional view;
Fig. 2 a is the axial cutaway view of giant-scale engineering tyre assembly drum closed state;
Fig. 2 b is giant-scale engineering tyre assembly drum closed state graphics;
Fig. 2 c is the D-D cross-sectional schematic in Fig. 2 a;
Fig. 3 a is the graphics of the superimposed pilot process of giant-scale engineering tyre assembly drum;
Fig. 3 b is closed state front view in the middle of giant-scale engineering tyre assembly drum;
Fig. 3 c is closed state side view in the middle of giant-scale engineering tyre assembly drum.
In figure: 1, forming machine main spindle; 2, forming machine brake cover; 3, the secondary core body of assembly drum; 4, assembly drum main core body; 5, interior small rod; 5 ', outer small rod; 6, intermediate connecting rod; 7, Kuan Guwa; 8, wide drum watt pole; 10, left wide drum shoulder connector; 10 ', right wide drum shoulder connector; 11, left wide drum shoulder; 11 ', right wide drum shoulder; 12, wide drum watt drive link; 13, forming machine main spindle flat key; 14, axial locknut; 15, helical screw; 16, embedded screw; 20, slave connecting rod; 21, master connecting-rod; 22, left rail; 22 ', right guide rail; 23, left guide rod; 23 ', right guide rod; 24, left narrow drum shoulder connector; 24 ', right narrow drum shoulder connector; 25, left narrow drum shoulder; 25 ', right narrow drum shoulder; 26, narrow drum watt; 27, fork; 29, right space connecting rod; 30, cross sliding clock; 31, horizontal guide groove; 33, contracting drum shoulder connecting rod; 35, left space connecting rod; 39, left narrow drum shoulder supporter; 39 ', right narrow drum shoulder supporter.
The specific embodiment
As shown in Fig. 1 a, 1b, giant-scale engineering tyre assembly drum, comprising: drum watt group, drum watt expansion mechanism, narrow drum shoulder contracting mechanism.
Drum watt group, comprises wide drum watts 7, narrow drum watts 26; Wide drum watts 7 and narrow drum watts 26 is circumferentially alternately evenly arranged at giant-scale engineering tyre assembly drum, and uniform number is six, and alternately angle is between the two 30 degree, as shown in Figure 1 f.
The inner side of described wide drum watts 7 is with two parallel pin shaft holes, wide drum watt 7 axial two ends respectively with the wide drum shoulder 11 in a left side, right wide drum shoulder 11 '; Left wide drum shoulder 11, right wide drum shoulder 11 ' respectively and a left side wide drum shoulder connector 10, right wide drum shoulder connector 10 ' be fixedly connected with; Left wide drum shoulder connector 10, right wide drum shoulder connector 10 ' are respectively by the wide drum of bolt 9,9 ' be fixedly connected on watts 7.
The axial two ends of described narrow drum watts 26 respectively with the narrow drum shoulder 25 in a left side and right narrow drum shoulder 25 ', left narrow drum shoulder 25 and right narrow drum shoulder 25 ' flexible along the direction forming an angle with horizontal axis; The two ends, inner side of described narrow drum watts 26 be respectively equipped with left narrow drum shoulder supporter 39 and right narrow drum shoulder supporter 39 ', the center, inner side of narrow drum watts 26 is provided with the suspension bearing pin 28 vertical with inner surface, as shown in Figure 1 b; The narrow drum shoulder supporter 39 in a described left side is with the left rail 22 forming an angle with horizontal axis, and be provided with pin shaft hole by centre, the narrow drum shoulder supporter 39 in the described right side ' with the symmetrical right guide rail 22 of left rail 22 ', and at the horizontal guide groove 31 that is provided with certain length by centre; The narrow drum shoulder 25 in a described left side is fixedly connected with left guide rod 23 and left narrow drum shoulder connector 24, and left guide rod 23 inserts among the left rail 22 on left narrow drum shoulder supporter 39, the narrow drum shoulder 25 in the described right side ' with right guide rod 23 ' and right narrow drum shoulder connector 24 ' be fixedly connected with, and right guide rod 23 ' insertions right narrow rouse take on supporter 39 ' on right guide rail 22 ' among.
Drum watt expansion mechanism, comprising: assembly drum movement, wide drum watt expansion mechanism, narrow drum watt expansion mechanism;
Described assembly drum movement, comprising: assembly drum main core body 4, the secondary core body 3 of assembly drum, screw mechanism; As shown in Fig. 1 c, Fig. 1 d, described assembly drum main core body 4 is formed by the cylindrical configuration with centre bore, the cylinder left end of described assembly drum main core body 4 is provided with single six circumferential the first uniform suspension pin shaft holes 17, and the cylinder right-hand member of described assembly drum main core body 4 is provided with single six circumferential the second uniform suspension pin shaft holes 18, single six circumferential the 3rd uniform suspension pin shaft holes 19; First of left end hang pin shaft hole 17 axis and second of right-hand member hang pin shaft hole 18 axis parallel, hang pin shaft hole 19 axis angles 30 with right-hand member the 3rd and spend, first hangs that pin shaft hole axis, second hangs pin shaft hole axis, the 3rd suspension pin shaft hole axis is all vertical with assembly drum main core body centre bore axis.
The right side of described assembly drum main core body 4 is provided with four arc necks, forming machine main spindle 1 penetrates the centre bore of assembly drum main core body 4, and form matched in clearance, protrusion circular arc claw on forming machine brake cover 2 is inserted among the arc neck of assembly drum main core body 4, lock the axial location of assembly drum main core body 4 on forming machine main spindle 1 as shown in Figure 1a, and by axial locknut 14.
The secondary core body 3 of described assembly drum is formed by the cylindrical configuration with centre bore, the middle part of secondary core body 3 cylindrical body outer walls of assembly drum is uniform single six the 4th suspension pin shaft holes 40 circumferentially, uniform single six the 5th of the right-hand member of cylindrical body outer wall hangs pin shaft hole 41, as shown in Fig. 1 c, Fig. 1 d; The 4th angle hanging between pin shaft hole axis, the 5th suspension pin shaft hole axis is 30 degree, and it is all vertical with the secondary core body 3 centre bore axis of assembly drum that the 4th suspension pin shaft hole axis, the 5th hangs pin shaft hole axis.
Described screw mechanism, by helical screw 15, embedded screw 16, forming machine main spindle flat key 13 forms, the centre bore of described helical screw 15 and forming machine main spindle 1 external cylindrical surface form interference fits, helical screw 15 is circumferentially connected with forming machine main spindle 1 by forming machine main spindle flat key 13, helical screw 15 is axially locked in the left end of forming machine main spindle 1 by axial locknut 14, secondary core body 3 centre bores of the external cylindrical surface of described embedded screw 16 and assembly drum form interference fit, within embedded screw 16 is pressed into secondary core body 3 centre bores of assembly drum, and embedded screw 16 right sides are concordant with the secondary core body of assembly drum 3 right sides, as Fig. 1 c, shown in Fig. 1 d, described embedded screw 16 forms screw mechanism with helical screw 15, the rotation of forming machine main spindle 1, through forming machine main spindle flat key 13, pass to helical screw 15, helical screw 15 promotes embedded screw 16 and moves axially, and embedded screw 16 drives the secondary core body 3 of assembly drum to move along assembly drum axis relative to assembly drum main core body 4, in deployed condition, the secondary core body 3 right side laminatings of assembly drum main core body 4 left sides and assembly drum.
Described wide drum watt expansion mechanism, comprising: wide drum watt pole 8, intermediate connecting rod 6, interior small rod 5, outer small rod 5 ' and wide drum watt drive link 12; Described intermediate connecting rod 6 is with wide drum watt pole 8 all with three uniform parallel conllinear pin shaft holes, and wide drum watt pole 8, intermediate connecting rod 6 is hinged by centre bore separately; Described outer small rod 5 ', interior small rod 5 and wide drum watt drive link 12 be all with two parallel pin axis holes, and outer small rod 5 ' isometric with interior small rod 5; Left pin shaft hole on the outer end of described wide drum watt pole 8 and wide drum watts 7 is hinged, inner hinged with the second suspension pin shaft hole 18 of assembly drum main core body 4; Described outer small rod 5 ' outer end and wide drum watts 7 on right pin shaft hole hinged, outer small rod 5 ' the inner and the outer end of intermediate connecting rod 6 hinged; The outer end of the outer end of the inner of intermediate connecting rod 6 and interior small rod 5, wide drum watt drive link 12 is hinged; Interior small rod 5 is inner hinged with assembly drum main core body 4 first suspension pin shaft holes 17; It is hinged that the 4th of the secondary core body of the inner of described wide drum watt drive link 12 and assembly drum 3 middle parts hang pin shaft hole 40; In deployed condition, interior small rod 5, intermediate connecting rod 6 and outer small rod 5 ' conllinear, and three's length sum equals the length of wide drum watt pole 8, and form the gusseted of wide drum watts 7 with wide drum watt pole 8, as shown in Figure 1a; Interior small rod 5, wide drum watt drive link 12, assembly drum main core body 4 form plane slider-crank mechanism with the secondary core body 3 of assembly drum, and this mechanism only allows the secondary core body 3 of assembly drum to move along assembly drum axis relative to assembly drum main core body 4.
Described narrow drum watt expansion mechanism, comprising: master connecting-rod 21, slave connecting rod 20 and cross sliding clock 30; Described master connecting-rod 21 is isometric with slave connecting rod 20 and all with three parallel uniform pin shaft holes, master connecting-rod 21 is hinged in central hole separately with slave connecting rod 20; Described cross sliding clock 30 is takeed on the interior movement of supporter 39 ' horizontal guide groove 31 at narrow drum watt 26 right narrow drums, and hinged with bearing pin 32 with the outer end pin shaft hole of slave connecting rod 20, as shown in Fig. 1 e; Pin shaft hole and master connecting-rod 21 outer end pin shaft holes on described narrow drum watt 26 left narrow drum shoulder supporters 39 are hinged, it is hinged that the 3rd of the pin shaft hole of described master connecting-rod 21 the inners and assembly drum main core body 4 hangs pin shaft hole 19, and it is hinged that the secondary core body 3 the 5th of the pin shaft hole of described slave connecting rod 20 the inners and assembly drum hangs pin shaft hole 41; The secondary core body 3 of assembly drum moves along assembly drum axis relative to assembly drum main core body 4, will cause cross sliding clock 30 in watt interior movement of 26 right narrow drum shoulder supporter 39 ' horizontal guide groove 31 of narrow drum.
Narrow drum shoulder contracting mechanism, comprising: fork 27, left space connecting rod 35, right space connecting rod 29, contracting drum shoulder connecting rod 33; As shown in Figure 1 b, described left space connecting rod 35, right space connecting rod 29 and contracting drum shoulder connecting rod 33 two ends are all with oscillating bearing; Described fork 27 middle parts are with centrepin axis hole, a side with two pin shaft holes, opposite side with a pin shaft hole; Wherein, the suspension bearing pin 28 of the centrepin axis hole of fork 27 and narrow drum watt 26 medial surfaces is hinged; Fork 27 is hinged with oscillating bearing 34 with outside pin shaft hole and the left space connecting rod 35 of two pin shaft hole one sides, fork 27 is hinged with oscillating bearing 38 with contracting drum shoulder connecting rod 33 with the intermediate pin axis hole of two pin shaft hole one sides, with the pin shaft hole of pin shaft hole one side and right space connecting rod 29 with oscillating bearing 34 ' hinged; The other end of described left space connecting rod 35 is hinged with oscillating bearing 36 with left narrow drum shoulder connector 24, the other end of described right space connecting rod 29 and right narrow drum shoulder connector 24 ' with oscillating bearing 36 ' hinged, the bearing pin 32 that the other end of described contracting drum shoulder connecting rod 33 is takeed on the cross sliding clock 30 in supporter 39 ' horizontal guide groove 31 with right narrow drum is connected with oscillating bearing 37; Cross sliding clock 30 is the interior movement of narrow drum shoulder supporter 39 ' horizontal guide groove 31 on the right side, take on connecting rod 33 by connecting cross sliding clock 30 with the contracting drum of fork 27, drive fork 27 to swing around the suspension bearing pin 28 of narrow drum watt 26 medial surfaces, by left space connecting rod 35, right space connecting rod 29, drag respectively left narrow drum shoulder 25, right narrow drum shoulder 25 ' shrink to assembly drum center along certain inclination angle, or deviate from center deployment;
On fork 27, other three pin shaft holes are to the distance of centrepin axis hole, on left and right narrow drum shoulder 25,25 ' amount of contraction have important impact, on the fork 27 of adjacent two narrow drums watts 26, other three pin shaft holes are taken as different value to the distance of centrepin axis hole.
The operation principle of giant-scale engineering tyre assembly drum of the present invention is as follows:
As shown in Fig. 1 a, Fig. 1 c, central inner hole by forming machine main spindle 1 through assembly drum main core body 4, the protrusion circular arc claw of forming machine brake cover 2 inserts among the arc neck of assembly drum main core body 4 right sides, locks the axial location of assembly drum main core body 4 on forming machine main spindle 1 by axial locknut 14.Rotary forming machine brake cover 2, drives giant-scale engineering tyre assembly drum unitary rotation; Braking forming machine brake cover 2, rotary forming machine main shaft 1, by forming machine main spindle flat key 13, rotatablely moving of forming machine main spindle 1 passed to helical screw 15, helical screw 15 drives the embedded screw 16 of secondary core body 3 centre bores of insert molding drum, and embedded screw 16 drives the secondary core body 3 of assembly drum to move along assembly drum axis relative to assembly drum main core body 4.
As shown in Figure 1a, when the secondary core body 3 of assembly drum is in the time that assembly drum main core body 4 moves along assembly drum axis, in wide drum watt drive link 12 in wide drum watt expansion mechanism drives, small rod 5 rotates relative to the hinging pin shaft of assembly drum main core body 4, and then drive intermediate connecting rod 6, outer small rod 5 ' and wide drum watt pole 8 move, due to outer small rod 5 ', interior small rod 5 and intermediate connecting rod 6 meet three's length sum and equal the length of wide drum watt pole 8, and outer small rod 5 ' isometric with interior small rod 5, make the line of two pin shaft holes on wide drum watts 7 parallel with assembly drum axis all the time, watt 7 translations of wide drum are shunk or launch, meanwhile, the secondary core body 3 of assembly drum is moving along assembly drum axis relative to assembly drum main core body 4, cause the master connecting-rod 21 in narrow drum watt expansion mechanism to change with the distance of slave connecting rod 20 outside two pin shaft holes, drive thus cross sliding clock 30 interior movement of narrow drum shoulder supporter 39 ' horizontal guide groove 31 on the right side, make narrow drum watts 26 do translation and shrink or launch motion, for making deployed condition assembly drum have maximum rigidity, wide drum watts 7 and narrow drum watts 26 all adopted gusseted mode in deployed condition, and the rigidity of structure is high, and the secondary core body 3 of assembly drum only bears the axial load of narrow drum watts 26,
As Fig. 1 a, shown in 1b, when cross sliding clock 30 on the right side narrow drum shoulder supporter 39 ' horizontal guide groove 31 interior when mobile, connect cross sliding clock 30 and take on connecting rod 33 with the contracting drum of fork 27, dragging the relative bearing pin 28 of fork 27 swings, the swing of fork 27, dragging by left space connecting rod 35 the narrow drum shoulder 25 in a left side being connected with the narrow drum shoulder connector 24 in a left side and left guide rod 23 slides along left rail 22, drag and the narrow drum shoulder 25 in the right side of the narrow drum shoulder connector 24 in the right side ' and right guide rod 23 ' be connected ' along right guide rail 22 ' slip by right space connecting rod 29, realize left narrow drum shoulder 25, right narrow drum shoulder 25 ' shrink to assembly drum center along certain inclination angle, or deviate from center deployment, the tire base of having evaded bulging shoulder axial shrinkage generation tangentially pushes phenomenon, improve the Forming Quality of giant-scale engineering tyre,
Because other three pin shaft holes on the fork 27 of adjacent two narrow drums watts 26 are taken as different value to the distance of centrepin axis hole, the left and right narrow drum shoulder 25,25 of narrow drum shoulder contracting mechanism guiding separately ' amount of contraction difference, at closed state, within narrow drum shoulder on narrow drum watt is contracted in the narrow drum shoulder on another narrow drum watt, make the narrow drum shoulder N-Side surf shrinking be arranged in different layers at closed state, as shown in Figure 2 b, three narrow drum shoulders 25 '
ibe arranged in three narrow drum shoulders 25 ' within, in realizing large folding ratio, the side of having avoided the narrow drum shoulder side of C type drum shoulder curve to cause because of adjacent two narrow drum shoulder side physical intervention is cut phenomenon and is occurred.
The lamination process of giant-scale engineering tyre assembly drum of the present invention is:
When completing after engineering tyre moulding, building machine for engineering tire is braked and is overlapped 2 braking assembly drum main core bodies 4 by forming machine, and tire assembly drum stops operating.Then, building machine for engineering tire drives forming machine main spindle 1 to rotate relative to forming machine brake cover 2, pass through screw-drive mechanism, promoting the relative assembly drum main core body 4 of the secondary core body 3 of assembly drum is moved to the left along assembly drum axis, by the wide drum watt expansion mechanism in drum watt expansion mechanism, watt 7 translations of wide drum are shunk; By the narrow drum watt expansion mechanism in drum watt expansion mechanism, drive watt 26 translations of narrow drum to shrink.With this simultaneously, the motion of narrow drum watt expansion mechanism causes again the cross sliding clock 30 in narrow drum watt 26 right narrow drum shoulder supporter 39 ' horizontal guide grooves 31 to move.The movement of cross sliding clock 30, by connecting the contracting drum shoulder connecting rod 33 of cross sliding clock 30, drive the fork 27 in narrow drum shoulder contracting mechanism to rotate, by left space connecting rod 35, right space connecting rod 29, drag respectively left narrow drum shoulder 25, right narrow drum shoulder 25 ' shrink to assembly drum center along certain inclination angle, as shown in Fig. 3 a, Fig. 3 b, Fig. 3 c, finally arrive the closed state as shown in Fig. 2 a, Fig. 2 b, Fig. 2 c.Can find from Fig. 2 a and Fig. 2 c, narrow drum shoulder contracting mechanism, left narrow drum shoulder 25 and right narrow drum shoulder 25 ' be all contracted near master connecting-rod 21 and slave connecting rod 20, utilize substantially the inner space in assembly drum movement and wide drum watt besieged city, reached and maximized folding ratio.
Claims (2)
1. a giant-scale engineering tyre assembly drum, comprising: narrow drum watt (26) and drum watt group, drum watt expansion mechanism, narrow drum shoulder contracting mechanism that wide drum watt (7) forms, is characterized in that:
The axial two ends of described narrow drum watt (26) respectively with along and horizontal axis the form an angle narrow drum shoulder in the flexible left side of direction (25) and right narrow drum shoulder (25 '); The two ends, inner side of described narrow drum watt (26) are respectively equipped with left narrow drum shoulder supporter (39) and right narrow drum shoulder supporter (39 '), and the center, inner side of narrow drum watt (26) is provided with the suspension bearing pin (28) vertical with inner surface; The narrow drum shoulder supporter in a described left side (39) is with the left rail (22) forming an angle with horizontal axis, and be provided with pin shaft hole by centre, the narrow drum shoulder supporter in the described right side (39 ') with the symmetrical right guide rail of left rail (22) (22 '), and be provided with the horizontal guide groove (31) of certain length by centre; The narrow drum shoulder in a described left side (25) is fixedly connected with left guide rod (23) and left narrow drum shoulder connector (24), and left guide rod (23) inserts among the left rail (22) on left narrow drum shoulder supporter (39), the narrow drum shoulder in the described right side (25 ') is fixedly connected with right guide rod (23 ') and right narrow drum shoulder connector (24 '), and right guide rod (23 ') inserts among the right guide rail (22 ') on right narrow drum shoulder supporter (39 ');
Described drum watt expansion mechanism is made up of assembly drum movement, wide drum watt expansion mechanism, a narrow drum watt expansion mechanism;
Described assembly drum movement, comprises assembly drum main core body (4), assembly drum secondary core body (3), screw mechanism; Described assembly drum main core body (4) is formed by the cylindrical configuration with centre bore, the cylinder left end of described assembly drum main core body (4) is provided with single six circumferential the first uniform suspension pin shaft holes (17), and the cylinder right-hand member of described assembly drum main core body (4) is provided with single six circumferential the second uniform suspension pin shaft holes (18), single six circumferential the 3rd uniform suspension pin shaft holes (19); First of left end hang pin shaft hole (17) axis and second of right-hand member hang pin shaft hole (18) axis parallel, hang pin shaft hole (19) axis angle 30 with right-hand member the 3rd and spend, first hangs that pin shaft hole axis, second hangs pin shaft hole axis, the 3rd suspension pin shaft hole axis is all vertical with assembly drum main core body centre bore axis; The secondary core body of described assembly drum (3) is formed by the cylindrical configuration with centre bore, circumferentially uniform single six the 4th suspension pin shaft holes (40) of the middle part of secondary core body (3) cylindrical body outer wall of assembly drum, uniform single six the 5th of the right-hand member of cylindrical body outer wall hangs pin shaft holes (41); The 4th angle hanging between pin shaft hole axis, the 5th suspension pin shaft hole axis is 30 degree, and it is all vertical with secondary core body (3) the centre bore axis of assembly drum that the 4th suspension pin shaft hole axis, the 5th hangs pin shaft hole axis;
Described wide drum watt expansion mechanism, comprises wide drum watt pole (8), intermediate connecting rod (6), interior small rod (5), outer small rod (5 ') and wide drum watt drive link (12); Described intermediate connecting rod (6) is with wide drum watt pole (8) all with three uniform parallel conllinear pin shaft holes, and wide drum watt pole (8), intermediate connecting rod (6) are hinged by centre bore separately; Described outer small rod (5 '), interior small rod (5) and wide drum watt drive link (12) are all with two parallel pin axis holes, and outer small rod (5 ') is isometric with interior small rod (5); Left pin shaft hole the second suspension pin shaft hole (18) hinged, inner and assembly drum main core body (4) on the outer end of described wide drum watt pole (8) and wide drum watt (7) is hinged; Right pin shaft hole on the outer end of described outer small rod (5 ') and wide drum watt (7) is hinged, and the outer end of the inner of outer small rod (5 ') and intermediate connecting rod (6) is hinged; The outer end of the outer end of the inner of intermediate connecting rod (6) and interior small rod (5), wide drum watt drive link (12) is hinged; Interior small rod (5) is inner hinged with assembly drum main core body (4) first suspension pin shaft holes (17); It is hinged that the 4th of the secondary core body of the inner of described wide drum watt drive link (12) and assembly drum (3) middle part hangs pin shaft hole (40); In deployed condition, interior small rod (5), intermediate connecting rod (6) and outer small rod (5 ') conllinear, and three's length sum equals the length of wide drum watt pole (8), and form the gusseted of wide drum watt (7) with wide drum watt pole (8);
Described narrow drum watt expansion mechanism, comprises master connecting-rod (21), slave connecting rod (20) and cross sliding clock (30); Described master connecting-rod (21) is isometric with slave connecting rod (20) and all with three parallel uniform pin shaft holes, master connecting-rod (21) is hinged in central hole separately with slave connecting rod (20); Described cross sliding clock (30) is mobile in narrow drum watt (26) the right narrow drum shoulder horizontal guide grooves of supporter (39 ') (31), and hinged with bearing pin (32) with the outer end pin shaft hole of slave connecting rod (20); Pin shaft hole and master connecting-rod (21) outer end pin shaft hole on described narrow drum watt 26 left narrow drum shoulder supporters (39) are hinged, it is hinged that the 3rd of the pin shaft hole that described master connecting-rod (21) is inner and assembly drum main core body (4) hangs pin shaft hole (19), and it is hinged that the secondary core body (3) the 5th of the pin shaft hole that described slave connecting rod (20) is inner and assembly drum hangs pin shaft hole (41);
Narrow drum shoulder contracting mechanism, comprising: fork (27), left space connecting rod (35), right space connecting rod (29), contracting drum shoulder connecting rod (33); Described left space connecting rod (35), right space connecting rod (29) and contracting drum shoulder connecting rod (33) two ends are all with oscillating bearing; Described fork (27) middle part is with centrepin axis hole, a side with two pin shaft holes, opposite side with a pin shaft hole; Wherein, the suspension bearing pin (28) of the centrepin axis hole of fork (27) and narrow drum watt (26) medial surface is hinged; Fork (27) is hinged with outside pin shaft hole and the left space connecting rod (35) of two pin shaft hole one sides, fork (27) is hinged with contracting drum shoulder connecting rod (33) with the intermediate pin axis hole of two pin shaft hole one sides, hinged with pin shaft hole and the right space connecting rod (29) of pin shaft hole one side; The other end of described left space connecting rod (35) is hinged with left narrow drum shoulder connector (24), the other end of described right space connecting rod (29) is hinged with right narrow drum shoulder connector (24 '), and the other end of described contracting drum shoulder connecting rod (33) is connected with the cross sliding clock (30) in the right narrow drum shoulder horizontal guide groove of supporter (39 ') (31).
2. giant-scale engineering tyre assembly drum according to claim 1, is characterized in that: upper other three pin shaft holes of fork (27) of adjacent two narrow drums watt (26) are taken as different value to the distance of centrepin axis hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070254.0A CN103831985B (en) | 2014-02-27 | 2014-02-27 | Giant engineering tire forming drum |
| PCT/CN2014/094319 WO2015127811A1 (en) | 2014-02-27 | 2014-12-19 | Giant construction tire forming drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070254.0A CN103831985B (en) | 2014-02-27 | 2014-02-27 | Giant engineering tire forming drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103831985A true CN103831985A (en) | 2014-06-04 |
| CN103831985B CN103831985B (en) | 2014-12-10 |
Family
ID=50796027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410070254.0A Expired - Fee Related CN103831985B (en) | 2014-02-27 | 2014-02-27 | Giant engineering tire forming drum |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103831985B (en) |
| WO (1) | WO2015127811A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015127811A1 (en) * | 2014-02-27 | 2015-09-03 | 中国石油大学(华东) | Giant construction tire forming drum |
| WO2015197935A1 (en) * | 2014-06-27 | 2015-12-30 | Compagnie Generale Des Etablissements Michelin | Tyre-building drum with telescopic cylindrical sectors |
| CN111465489A (en) * | 2017-12-13 | 2020-07-28 | 倍耐力轮胎股份公司 | Building drum for building tyres for vehicle wheels and method for inspecting the geometry of a building drum in a process for building tyres for vehicle wheels |
| CN113733622A (en) * | 2021-09-14 | 2021-12-03 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Large-proportion radial expansion and contraction building drum device for tire |
| CN114746261A (en) * | 2019-12-11 | 2022-07-12 | 倍耐力轮胎股份公司 | Forming drum for producing tyres for vehicle wheels and method for controlling the geometry of a forming drum for producing tyres for vehicle wheels |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201800005733A1 (en) * | 2018-05-25 | 2019-11-25 | CONTINUOUS RADIAL EXPANSION FORMING DRUM FOR FORMING TIRES |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03224728A (en) * | 1989-12-04 | 1991-10-03 | Sumitomo Rubber Ind Ltd | Drum for sticking tire constituting material |
| CN101186112A (en) * | 2007-12-19 | 2008-05-28 | 中国化学工业桂林工程公司 | Shaping drum for tyre shaping machine |
| CN102126297A (en) * | 2011-02-12 | 2011-07-20 | 天津大学 | Axial and radial stretching type tire molding drum |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202213211U (en) * | 2011-10-01 | 2012-05-09 | 广东巨轮模具股份有限公司 | Gear connecting rod combined type giant tire forming drum |
| CN103831985B (en) * | 2014-02-27 | 2014-12-10 | 中国石油大学(华东) | Giant engineering tire forming drum |
-
2014
- 2014-02-27 CN CN201410070254.0A patent/CN103831985B/en not_active Expired - Fee Related
- 2014-12-19 WO PCT/CN2014/094319 patent/WO2015127811A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03224728A (en) * | 1989-12-04 | 1991-10-03 | Sumitomo Rubber Ind Ltd | Drum for sticking tire constituting material |
| CN101186112A (en) * | 2007-12-19 | 2008-05-28 | 中国化学工业桂林工程公司 | Shaping drum for tyre shaping machine |
| CN102126297A (en) * | 2011-02-12 | 2011-07-20 | 天津大学 | Axial and radial stretching type tire molding drum |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015127811A1 (en) * | 2014-02-27 | 2015-09-03 | 中国石油大学(华东) | Giant construction tire forming drum |
| WO2015197935A1 (en) * | 2014-06-27 | 2015-12-30 | Compagnie Generale Des Etablissements Michelin | Tyre-building drum with telescopic cylindrical sectors |
| FR3022834A1 (en) * | 2014-06-27 | 2016-01-01 | Michelin & Cie | TIRE DRUM FOR PNEUMATIC ENVELOPE BRAKE WITH TELESCOPIC CYLINDRICAL SECTIONS |
| CN111465489A (en) * | 2017-12-13 | 2020-07-28 | 倍耐力轮胎股份公司 | Building drum for building tyres for vehicle wheels and method for inspecting the geometry of a building drum in a process for building tyres for vehicle wheels |
| CN111465489B (en) * | 2017-12-13 | 2022-06-03 | 倍耐力轮胎股份公司 | Building drum for building tyres for vehicle wheels and method for controlling the geometry of a building drum |
| CN114746261A (en) * | 2019-12-11 | 2022-07-12 | 倍耐力轮胎股份公司 | Forming drum for producing tyres for vehicle wheels and method for controlling the geometry of a forming drum for producing tyres for vehicle wheels |
| CN113733622A (en) * | 2021-09-14 | 2021-12-03 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Large-proportion radial expansion and contraction building drum device for tire |
| CN113733622B (en) * | 2021-09-14 | 2023-08-18 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Large-scale radial expansion and contraction forming drum device for tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103831985B (en) | 2014-12-10 |
| WO2015127811A1 (en) | 2015-09-03 |
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