CN201032386Y - Improved chain plate section - Google Patents

Improved chain plate section Download PDF

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Publication number
CN201032386Y
CN201032386Y CNU2007201079073U CN200720107907U CN201032386Y CN 201032386 Y CN201032386 Y CN 201032386Y CN U2007201079073 U CNU2007201079073 U CN U2007201079073U CN 200720107907 U CN200720107907 U CN 200720107907U CN 201032386 Y CN201032386 Y CN 201032386Y
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CN
China
Prior art keywords
hollow cylinder
carrier bar
section
bar joint
cross
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Expired - Lifetime
Application number
CNU2007201079073U
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Chinese (zh)
Inventor
缪跃辉
张振亚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEDONG PRECISION CAST CO Ltd NINGBO
Ningbo Zhedong Precision Casting Co Ltd
Original Assignee
ZHEDONG PRECISION CAST CO Ltd NINGBO
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Priority to CNU2007201079073U priority Critical patent/CN201032386Y/en
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Publication of CN201032386Y publication Critical patent/CN201032386Y/en
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Abstract

The utility model relates to an improved chain plate joint which essentially comprises two hollow cylinders with the same height, a transverse rib and a supporting plate, wherein, the transverse rib in the middle connects the two hollow cylinders together along a vertical bisector of the height and extends to connected with the supporting plate at the upper surface so as to ensure that the transverse rib, two hollow cylinders and the supporting plate are formed as a whole. The utility model is characterized in that the facade of the transverse rib of the chain plate joint closely takes the shape of a saddle; the thickness of the transverse rib becomes thinner gradually from one end of the hollow cylinder with an equal cross section to one end of the hollow cylinder with a variable cross section; the outer diameter of the hollow cylinder with a variable cross section is slightly smaller than that of the other hollow cylinder while the inner diameter of the embedded former one is also slightly smaller than that of the latter one. The transmission performance is strengthened and the requirement of strength for a single chain plate joint or the assembled chain plate is met, thus the working efficiency is improved and the situation that parts are inclined to break before the improvement is almost eliminated so as to prolong the whole service life of the chain plate.

Description

A kind of improved carrier bar joint
Technical field
The utility model patent relates to the carrier bar joint of a kind of use on upper link plate such as Cast Strip stove or glowing furnace, can in whole heat treatment process, make Cast Strip stove and glowing furnace keep better, stable duty always, the structural strength of carrier bar is increased, and increase service life.
Background technology
At present, be used for the Cast Strip stove, carrier bar on the glowing furnace is to be run through mutually to assemble up by the joint of carrier bar one by one to form an elliptoid chain mostly, at heat treatment process intermediate plate work is uniform motion, whole stress is such: the gravity that at first is subjected to carrier bar self, this gravity is very big, generally be about the power of twenty or thirty ton, the carrier bar inboard will be subjected to the holding power of the idler pulley in the burner hearth and be in the pressure (its size equals the gravity of self) that chain plate portion in the burner hearth is subjected to object to be heated in addition, also to be subjected to the frictional force that carrier bar is rotated by counterclockwise or clockwise direction simultaneously in burner hearth, carrier bar carries object to be heated and drags toward the direction without any confusion under the driving of frictional force, and this is a perfect condition.In fact, the operating mode of the carrier bar on Cast Strip stove or the glowing furnace is very complicated, it is to be in 900 a degree left and right sides hot environments Celsius on the one hand, the influence that certainly will sheet material be subjected to creep stress makes the yield strength of whole sheet material obviously reduce, in other words be exactly not being durable of carrier bar change, shaky, corresponding carrier bar is to be made of the carrier bar joint that assembles each other one by one, the duty of carrier bar joint directly has influence on the service behaviour of whole carrier bar, it is the operating efficiency that causes whole Cast Strip stove or glowing furnace, and the carrier bar joint position distribution in heat treated process is constantly changing, its stressing conditions is except above analysis, when the corner that it runs to two is that its direction of motion is when changing, also to be subjected to the effect of a very big moment of torsion, the part place of the thin promptly close following cross rib of cylinder that the effect of this power makes has at first arrived YIELD STRENGTH and has begun to occur cracking, crackle is constantly expanded in the middle of the operation afterwards, just the fracture of whole at last carrier bar joint, destroy and appear at this position more than 90%, also have a small amount of destroy appear at cross rib below the planker near, here owing to the existence of cross rib, near stress is local high than other herein.Not to mate very much owing to carrier bar saves former and later two cylindrical thickness on the other hand, be that the intensity difference is too big, cause in heat treatment process under the effect of various power thin cylindrical in circle quilt pulling force forward slowly pulled into ellipse, wall thickness is more and more thinner, this also is that the place of usually destroying is mentioned in aggravation in above-mentioned, but destroy maximum also more than these, when thin justifying in cylindrical becomes ellipse, assembling place of two carrier bars joint is rotated not flexibly, must influence the movement velocity of carrier bar joint, especially obvious especially in the corner, caused its speed not have to make soon that immediately following the speed of carrier bar joint thereafter distortion has taken place carrier bar, made more good carrier bar joint be subjected to influence like this, destroyed more.Moreover the maintenance of carrier bar bothers very much, in case break down, must break fire door carrier bar is pulled out, repair that local carrier bar joint simultaneously, also will all will dismantle parallel row's carrier bar joint even more, then new carrier bar joint is loaded onto, every repairing once approximately spends 5 to 7 days time of 3 people, significant wastage the man power and material, incured loss through delay manufacturing schedule simultaneously, increased single production cost of products virtually.Based on above various reasons, avoid under the situation of above generation the carrier bar joint being improved, be the structural strength that satisfies each carrier bar joint self on the one hand, also want its integral body to assemble up and have transmission performance preferably, higher than efficient before improving, the life-span of whole carrier bar is also improved several times than before improving simultaneously; Make the carrier bar joint after the improvement adapt to actual industrial and mineral, stress more on the other hand, improve whole stability.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of improved carrier bar joint is provided at existing background technology, this carrier bar is in the whole military service phase, its transmission performance has obtained reinforcement, and no matter still all satisfied requirement of strength to whole assembling back carrier bar from single carrier bar joint, thereby operating efficiency has improved, improve the position, ground that takes place to rupture precedingly and almost stopped, so the whole ILS of carrier bar.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of improved carrier bar joint, it comprises two contour hollow cylinders, four major parts of cross rib and supporting plate, one of them hollow cylinder is a variable cross-section, its embedded concentric hollow round column body and both sides symmetry stretch out a part, middle cross rib links together two hollow cylinders along high perpendicular bisector, and extension is connected with top supporting plate makes cross rib, two hollow cylinders and supporting plate form one, the front that it is characterized in that the cross rib of described carrier bar joint is an approximate saddle face, the thickness of cross rib is along the end attenuation gradually to the variable cross-section hollow cylinder of an end of uiform section hollow cylinder, the external diameter of the hollow cylinder of variable cross-section is slightly less than the external diameter of another hollow cylinder, and the external diameter of the former embedded hollow cylinder also is slightly less than the latter's internal diameter.
Two waists of described cross rib become the parabolic type semi-surrounding two hollow cylinders and extension and supporting plate to join;
Described cross rib against an end of variable cross-section hollow cylinder across its whole height, and against the hollow cylinder of the other end across middle height about half, and the initiating terminal of cross rib and end end are with round-corner transition;
It is the outer radius of two hollow cylinders that two waists of the approximate saddle face in the front of described cross rib become parabolical curvature;
The cross section of described cross rib is individual irregular, and the both sides parallel lines shrink gradually along the direction of perpendicular bisector and join;
Described two hollow cylinder radiuses are inequality, and prismatic hollow cylinder outer radius is greater than variable cross-section hollow cylinder outer radius 3~4mm, and the former inside radius is greater than the outer radius 0.5~1mm of the embedded hollow cylinder of the latter;
The height of described prismatic hollow cylinder then is embedded hollow cylinder 2.5~2.8 times in variable cross-section hollow cylinder exposed portions serve one end length;
Described supporting plate is an approximate truncated rectangular pyramids type that stands upside down, and big bottom surface has more two parts;
Described one of the two parts that have more are that rectangular surfaces is parallel and tangent with the cylindrical of variable cross-section hollow cylinder, and to be curved surface extend to from crossing the vertical position distance in the center of circle along prismatic hollow cylinder outer radius is 1.5~2mm for another.
Compared with prior art, this practical improved advantage is: under the certain situation of the relative position of two hollow cylinders, changed the design parameter of two hollow cylinders, strengthen the cylindrical outer radius of uiform section, and reduced inside radius, in fact be the thickness that has increased its hollow cylinder, structural strength compared with before-improvement increases greatly, the outer radius of variable cross-section hollow cylinder suitably reduces simultaneously, and also reducing about 0.5mm of the outer radius of embedded hollow cylinder, make suitable the reducing of structural strength of its variable cross-section hollow cylinder, two structural strength ratio is controlled near 1, the structural strength of hollow cylinder has obtained optimization like this, structural strength obtains equilibrium at both, the phenomenon of rupture that always occurs before the improvement is almost stopped, and operating efficiency obviously improves compared with before-improvement like this, and the transmission performance of the carrier bar after integral installation is equipped with simultaneously also obtains very big improvement; Thickness before cross rib improves evenly and regular shape become present thickness and reduce gradually to the variable cross-section hollow cylinder from a end near the uiform section hollow cylinder, strengthen contact area simultaneously with the uiform section hollow cylinder, the integral thickness that is the variable cross-section hollow cylinder on the one hand is thicker than uiform section hollow cylinder, that is to say the structural strength height of the former structural strength than the latter, fracture takes place and destroys in uiform section hollow cylinder easily, allow the cross rib structural design be more prone to weak structural design part (uiform section hollow cylinder), thus the structural strength of balance between them; Strengthen the contact area with the uiform section hollow cylinder on the other hand, purpose also is so, repeats no more at this.The improvement of such structural design, be that the incidence that the carrier bar joint ruptures in assembling later work has significantly reduced, almost stopped, take all factors into consideration whole duty when designing simultaneously, mild transition or chamfering or the like when structural design, between member, have been adopted, on the one hand stress value is herein reduced widely, avoided stress to concentrate to destroying structurally, make chain slab integral mechanical performance be improved (transmission performance of carrier bar) in the middle of work simultaneously, therefore making repeatedly, maintenance rate has obtained containment, greatly reduce production cost, make enterprise obtain more material benefit.
Description of drawings
The carrier bar joint stereogram that Fig. 1 is traditional;
The carrier bar joint vertical view that Fig. 2 is traditional;
The carrier bar joint upward view that Fig. 3 is traditional;
The carrier bar joint side view that Fig. 4 is traditional;
Fig. 5 carrier bar joint of the present invention stereogram;
Fig. 6 carrier bar joint of the present invention vertical view;
Fig. 7 carrier bar joint of the present invention upward view;
Fig. 8 carrier bar joint of the present invention side view;
Fig. 9 is the splicing figure of carrier bar joint;
Figure 10 is the splicing cutaway view of carrier bar joint.
The specific embodiment
Below in conjunction with accompanying drawing embodiment this practicality is described in further detail.
As Fig. 1-10 signal, this improved carrier bar joint, it comprises two contour hollow cylinders 1,2,4 four major parts of cross rib 3 and supporting plate, one of them hollow cylinder is a variable cross-section, be called the hollow cylinder 1 of variable cross-section, its embedded concentric hollow round column body 1a, and the both sides symmetry stretch out a part, middle cross rib 3 is two hollow cylinders 1,2 link together along high perpendicular bisector, and extension is connected with top supporting plate 4 makes cross rib 3, two hollow cylinders 1,2 and supporting plate 4 form one, the crucial part of its invention is that the front of the cross rib 3 of described carrier bar joint is an approximate saddle face, and uneven thickness everywhere, be one irregular below it, shrink under vertical gradually in the center of circle of crossing that originates in two hollow cylinders, against an end of variable cross-section hollow cylinder 1 across its whole height, and against the hollow cylinder 2 of the other end across middle height about half, the external diameter of the hollow cylinder 1 of variable cross-section is slightly less than the external diameter of another hollow cylinder 2, and the external diameter of the former embedded hollow cylinder 1a also is slightly less than the latter's internal diameter; The front of cross rib 3 is approximate saddle face types, and two waists become the parabolic type semi-surrounding two hollow cylinders 1,2 and extension and supporting plate 4 to join; The thickness of cross rib 3 is along the end attenuation gradually to variable cross-section hollow cylinder 1 of an end of uiform section hollow cylinder 2, and initiating terminal and end end are with round-corner transition; It is the outer radius of two hollow cylinders 1,2 that two waists of the approximate saddle face in the front of cross rib 3 become parabolical curvature; The cross section of cross rib 3 is individual irregular, and the both sides parallel lines shrink gradually along the direction of perpendicular bisector and join; Two hollow cylinder 1,2 radiuses are inequality, and prismatic hollow cylinder 2 outer radius are greater than variable cross-section hollow cylinder 1 outer radius 3~4mm, and the former inside radius is greater than outer radius 0.5~1mm of the embedded hollow cylinder 1a of the latter; The height of prismatic hollow cylinder 2 then is embedded hollow cylinder 1a 2.5~2.8 times in variable cross-section hollow cylinder exposed portions serve one end length; Supporting plate 4 is approximate truncated rectangular pyramids types that stand upside down, and big bottom surface has more two parts 4a, 4b; Having more one of two parts 4a, 4b is that rectangular surfaces is parallel and tangent with the cylindrical of variable cross-section hollow cylinder 1, and to be curved surface extend to from being the vertical position distance in the center of circle along prismatic hollow cylinder 2 outer radius is 1.5~2mm for another.
With improve before compare, it is big that the external diameter of uiform section hollow cylinder becomes, and increases internal diameter simultaneously, is exactly the thickness that increases its total in other words, and the structural strength of himself is increased; What the external diameter of non-constant section hollow cylinder was suitable reduces, the external diameter of embedded hollow cylinder also correspondingly reduces a bit, make it internal diameter than uiform section hollow cylinder is slightly for a short time and be advisable, general fit tolerance is that 0.5mm is best, improve that in this wise two hollow cylinder ground intensity are optimized and balance, both strength ratios near 1, i.e. the yield stress basically identical of structure, under external applied load landearth-circumstance condition, can normally work in phase, phenomenon of rupture can not occur.
Preferred version is the external diameter 3~4mm of the outer radius of uiform section hollow cylinder greater than the variable cross-section hollow cylinder, simultaneously the former internal diameter is than the big 0.5~1mm of external diameter of the latter's embedded hollow cylinder, and the height of uiform section hollow cylinder is that embedded hollow cylinder exposes 2.5~2.8 times an of end and is advisable in variable cross-section hollow cylinder outside.
The yield strength of original two hollow cylinders under same load broken in the setting of irregular body cross rib, because the variable cross-section hollow cylinder has the existence of embedded hollow cylinder, under two hollow cylinder design sizes situation very nearly the same, it self structural strength is wanted obviously the structural strength greater than the uiform section hollow cylinder, the position that a end than the uiform section hollow cylinder a little less than the relative thin is connected is thicker, corresponding increase contact area also in the junction, such connection has been strengthened the structural strength of himself, and along thickness attenuation gradually to the cross rib of variable cross-section hollow cylinder, and reduce the contact area of junction, cross rib is just the structure Strength optimization of two hollow cylinders like this, the intensity basis equalization, both yield strengths reach unanimity under the situation of external applied load, prerequisite is under the satisfied situation of the intensity of total, can not occur at first surrendering the phenomenon of rupture failure then, make to be in normal operating conditions when working after whole the assembling of carrier bar joint.
Preferred version is that the front of cross rib is approximate saddle face type, two waists become the parabolic type semi-surrounding two hollow cylinders and extension and supporting plate to join, the thickness of cross rib is along the end attenuation gradually to the variable cross-section hollow cylinder of an end of uiform section hollow cylinder, and initiating terminal and end end are with round-corner transition, and it is the outer radius of two hollow cylinders that two waists of the approximate saddle face in the front of cross rib become parabolical curvature.The structural design of such cross rib has effectively been protected vulnerable area (uiform section hollow cylinder), changes the also structural strength of two two hollow cylinders of approximate equilibrium, thus the service life of having improved whole carrier bar.
Cooperate the energy-conservation purpose of design that reaches of this carrier bar by above several respects.And this has obtained checking in actual use.
This practicality improves not only for above-mentioned embodiment, in this specification scope of disclosure various deformation can be arranged.
All are new, the disclosed single technical characterictic with combination all is regarded as this practical improved important content in this specification and/or accompanying drawing.

Claims (9)

1. an improved carrier bar saves, it comprises two contour hollow cylinders (1,2), (4) four major parts of cross rib (3) and supporting plate, one of them hollow cylinder (1) is a variable cross-section, its embedded concentric hollow round column body (1a) and both sides symmetry stretch out a part, a middle cross rib (3) links together two hollow cylinders along high perpendicular bisector, and extension is connected with top supporting plate (4) makes cross rib (3), two hollow cylinders (1,2) and supporting plate (4) form one, the front that it is characterized in that the cross rib (3) of described carrier bar joint is an approximate saddle face, the thickness of cross rib (3) is along the end attenuation gradually to variable cross-section hollow cylinder (1) of an end of uiform section hollow cylinder (2), the external diameter of the hollow cylinder of variable cross-section (1) is slightly less than the external diameter of another hollow cylinder (2), and the external diameter of the former embedded hollow cylinder (1a) also is slightly less than the latter's internal diameter.
2. improved carrier bar joint according to claim 1, two waists that it is characterized in that described cross rib (3) become the parabolic type semi-surrounding two hollow cylinders (1,2) and extension and supporting plate (4) to join.
3. improved carrier bar joint according to claim 2, it is characterized in that described cross rib (3) against an end of variable cross-section hollow cylinder (1) across its whole height, and against the hollow cylinder (2) of the other end across middle height about half, and the initiating terminal of cross rib (3) and end end are with round-corner transition.
4. improved carrier bar joint according to claim 3, it is the outer radius of two hollow cylinders (1,2) that two waists that it is characterized in that the approximate saddle face in front of described cross rib (3) become parabolical curvature.
5. according to the described improved carrier bar joint of any right of claim 1 to 4, the cross section that it is characterized in that described cross rib (3) is individual irregular, and the both sides parallel lines shrink gradually along the direction of perpendicular bisector and join.
6. according to the described improved carrier bar joint of any right of claim 1 to 4, it is characterized in that described two hollow cylinders (1,2) radius is inequality, prismatic hollow cylinder (2) outer radius is greater than variable cross-section hollow cylinder (1) outer radius 3~4mm, and the former inside radius is greater than the outer radius 0.5~1mm of the embedded hollow cylinder of the latter (1a).
7. improved carrier bar joint according to claim 6, the height that it is characterized in that described prismatic hollow cylinder (2) then is embedded hollow cylinder (1a) 2.5~2.8 times in variable cross-section hollow cylinder exposed portions serve one end length.
8. according to the described improved carrier bar joint of any right of claim 1 to 4, it is characterized in that described supporting plate (4) is an approximate truncated rectangular pyramids type that stands upside down, and big bottom surface has more two parts (4a, 4b).
9. improved carrier bar joint according to claim 8, it is characterized in that described one of the two parts (4a, 4b) that have more are that rectangular surfaces is parallel and tangent with the cylindrical of variable cross-section hollow cylinder (1), to be curved surface extend to from crossing the vertical position distance in the center of circle along prismatic hollow cylinder (2) exradius is 1.5~2mm for another.
CNU2007201079073U 2007-04-05 2007-04-05 Improved chain plate section Expired - Lifetime CN201032386Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201079073U CN201032386Y (en) 2007-04-05 2007-04-05 Improved chain plate section

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Application Number Priority Date Filing Date Title
CNU2007201079073U CN201032386Y (en) 2007-04-05 2007-04-05 Improved chain plate section

Publications (1)

Publication Number Publication Date
CN201032386Y true CN201032386Y (en) 2008-03-05

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CNU2007201079073U Expired - Lifetime CN201032386Y (en) 2007-04-05 2007-04-05 Improved chain plate section

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108438730A (en) * 2016-08-20 2018-08-24 充烜金 The manufacturing method of the compound conveyer belt of apron feeder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108438730A (en) * 2016-08-20 2018-08-24 充烜金 The manufacturing method of the compound conveyer belt of apron feeder
CN108455171A (en) * 2016-08-20 2018-08-28 充烜金 The compound conveyer belt of apron feeder

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Granted publication date: 20080305