CN101571178A - Double-layer transmission pin shaft chain - Google Patents
Double-layer transmission pin shaft chain Download PDFInfo
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- CN101571178A CN101571178A CNA2009100990689A CN200910099068A CN101571178A CN 101571178 A CN101571178 A CN 101571178A CN A2009100990689 A CNA2009100990689 A CN A2009100990689A CN 200910099068 A CN200910099068 A CN 200910099068A CN 101571178 A CN101571178 A CN 101571178A
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- chain
- pin shaft
- bearing pin
- double
- axle
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Abstract
The invention discloses a double-layer transmission pin shaft chain, consisting of plural pin shaft chain units connected in sequence, wherein each pin shaft chain unit consists of an internal chain joint and an external chain joint; the internal chain joint and the external chain joint are inserted with a bearing in coordination way to form a hinging chain via a pin shaft and a shaft sleeve; each external chain and each internal chain can do circular motion around the pin shaft, wherein the pin shaft consists of an external sleeve and an internal pin shaft and forms internal and external interference sleeve structure by the hot sleeve processing technology; the double-layer combination structure can exert the anti-fatigue characteristics and toughness of the internal and external different materials and prevent the integral rupture invalidation of the pin shaft chain caused by the radial extension of the shaft face crackle in the using process; the invention has simple structure, easy manufacture, high reliability and long using life; by adopting the double-layer pin shaft chain system of the invention, the service life and the production and maintenance cost of equipment can be reduced, and the running safety can be guaranteed.
Description
Technical field
The invention belongs to that chain type is carried and the elevating mechanism field, relate in particular to lifting, the conveying of various materials, the heavy load transmission chain structure of discharging machinery.
Background technique
In the prior art, the main transmission component of chain type conveying equipment is a bearing pin chain, and the main failure forms of bearing pin chain is the bearing pin chain fracture.The inefficacy time limit of conventional design was generally 10 years; Handle through carburizing, pill spraying surface reinforcing, its increase fatigue life generally is no more than 15%; Because service condition is dust, hot environment, bears shearing, crooked iso-stress effect simultaneously, form fatigue crack and expansion, finally cause the bearing pin fracture, life of product is shortened dramatically, only be half a year sometimes; Because bearing pin chain lost efficacy and can't predict in advance, not only caused damp production, the integral device that also causes that has is damaged, and maintenance work wastes time and energy, and has a strong impact on ordinary production.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of double-layer transmission pin shaft chain is provided.
The objective of the invention is to be achieved through the following technical solutions: a kind of double-layer transmission pin shaft chain, it is connected to form successively by several bearing pin chain unit, wherein, each bearing pin chain unit is connected to form by inner link and outer link, inner link is made up of two axle sleeves, two carrier bars and two fasteners, the interior edge face of two carrier bars is relative, and two axle sleeves pass two corresponding holes of carrier bar, axle sleeve and hole interference fit respectively; Fastener is fixed in center, inner link carrier bar exterior edge face.Outer link is made up of two carrier bars, two bearing pins and four axle beds, and the exterior edge face of two carrier bars is relative, and four axle beds penetrate in the hole of two carrier bars axle bed and hole interference fit from outside to inside respectively; The axle bed of installing relatively on the carrier bar is inserted at the two ends of two bearing pins respectively, and the radius of bearing pin is less than the axis hole radius of axle bed.Inner link and outer link cooperate by the coaxial socket joint of bearing pin and axle sleeve and form hinge, and outer chain and interior chain can move in a circle around bearing pin.
Further, described bearing pin is made up of overcoat and interior bearing pin interference fit.
The invention has the beneficial effects as follows:
The present invention simple in structure, be easy to manufacturing, reliability height, long service life.
2. adopt double-layer pin shaft chain system of the present invention, can reduce working life of equipment and production, maintenance cost, guarantee security of operation.
Description of drawings
Fig. 1 is the structural representation of double-layer transmission pin shaft chain of the present invention;
Fig. 2 is a plan view of the present invention;
Fig. 3 is a front elevation of the present invention;
Fig. 4 is a bearing pin composite structure schematic representation, wherein, (a) is flat shoulder form, (b) is the convex shoulder form;
Fig. 5 is the carrier bar plan view;
Fig. 6 is the carrier bar plan view;
Among the figure, 1, first axle sleeve, 2, bearing pin, 3, carrier bar, 4, fastener, 5, axle bed, 6, second axle sleeve, 7, block.
Embodiment
Describe the present invention in detail with embodiment with reference to the accompanying drawings below, it is more obvious that purpose of the present invention and effect will become.
Shown in Fig. 1～3, double-layer transmission pin shaft chain of the present invention is connected to form successively by several bearing pin chain unit, each bearing pin chain unit is connected to form by inner link and outer link, specifically comprise first axle sleeve 1, bearing pin 2, carrier bar 3, fastener 4, axle bed 5 and second axle sleeve 6, respectively there is 1 hole at the two ends of carrier bar 3, and middle part, exterior edge face side has two blocks 7 (face that block is arranged is carrier bar 3 exterior edge faces).Inner link is made up of 1,2 carrier bars 3 of two axle sleeves and 2 fasteners 4, and the interior edge face of two carrier bars 3 is relative, and two axle sleeves 1 pass two carrier bars, 3 corresponding holes respectively, axle sleeve 1 and hole interference fit; Fastener 4 is fixed in center, inner link carrier bar 3 exterior edge face.Outer link is made up of 2 carrier bars 3, two bearing pins 2 and four axle beds 5, and the exterior edge face of two carrier bars 3 is relative, and four axle beds 5 penetrate respectively in the hole of two carrier bars 3 from outside to inside, axle bed 5 and hole interference fit; The axle bed of installing relatively on the carrier bar 5 is inserted at the two ends of two bearing pins 2 respectively, and the radius of bearing pin 2 is less than the axis hole radius of axle bed 5, and bearing pin 2 can freely roll in axis hole.Inner link and outer link cooperate with axle sleeve 1 coaxial socket joint by bearing pin 2 and form hinge, and outer chain and interior chain can move in a circle around bearing pin 2.The fastener 4 of inner link has stoped the axial float of the carrier bar 3 of outer link.
As shown in Figure 4, bearing pin 2 is made up of overcoat 22 and interior bearing pin 21, form inside and outside interference sleeve composite structure by the hot jacket processing technology, this double-deck composite structure can be brought into play the fatigue resistance and the toughness of inside and outside different materials, effectively prevents to extend in the bearing pin chain using process because the footpath of axial plane crackle the whole fracture failure that causes.In actual the use, even there is crackle, crack propagation also is confined to the bearing pin skin, promptly ends to inner ring.Like this, exist at skin under the situation of penetrated crack, the integral body of bearing pin is sheared and flexural strength still can be guaranteed by internal layer, can continue to use, and does not need to change.Overcoat uses 35CrMo alloy steel seamless pipe, depth of hardening 2-3mm; Interior bearing pin uses 45 steel; In the high temperature oil bath, add hot jacket under the 450-500 ℃ of condition, again with the coaxial hot jacket of axle and overcoat, the cooling back forms interference fit, and magnitude of interference is 0.08-0.15mm.Wherein, if double-layer transmission pin shaft chain of the present invention is used for heavy duty, can adopt flat shoulder formula structure shown in the figure (a); If double-layer transmission pin shaft chain of the present invention is used for underloading, can adopt salient shoulder type structure shown in the figure (b).
As a kind of preferred, two fastener 4 positioned opposite can prevent the chain link slippage in the export-oriented end face of inner link center.
Come the present invention is further described in detail with some embodiments below, but the present invention is in no way limited to these embodiments.
Double-deck bearing pin delivery chain of the present invention can be used for the transmission of noria, is used for the transportation of cement, cinder, industrial waste ballast.At first, critical component bearing pin 2 is made up of overcoat 22 and interior bearing pin 21, forms inside and outside interference sleeve composite structure by the hot jacket processing technology, forms outer tension, the prestressing force of internal layer pressurized, can improve the axle fatigue resistance.Because bearing pin running environment can not change, be that germinating of bearing pin surface crack and expansion are a kind of inevitable situations, can make effectively and extend to the internal layer surface in the footpath of bearing pin chain axial plane crackle and promptly stop, can not form bearing pin because the final fracture that crack propagation causes, having under the situation of crackle, still can guarantee equipment safety operation.Secondly, the internal and external layer bearing pin can use different materials, forms the inner link and the outer link of chain, also can use with a kind of carrier bar, and structure is identical, therefore, can reduce production costs; Inner link is made up of two relative carrier bar 3 and two axle sleeves 1 of interior edge face; Outer link is made up of the opposing carrier bar 3 of two interior edge faces and two bearing pins 2 and four axle beds 5; Fastener 4 is installed on inner link carrier bar 3 export-oriented end face centers; Inner link and outer link cooperate with axle sleeve 1 coaxial socket joint by bearing pin 2 and form hinge, and outer chain and interior chain can be done local circular movement around bearing pin 2.Alternately connect to form the noria Conveying chains of a sealing by inner link and outer link.When the bearing pin inefficacy took place, what at first go wrong was overcoat 22, cut apart owing to exist between overcoat 22 and the interior bearing pin 21, can not form in the crackle and expand, and bearing pin still can effectively carry, and can select to change up to repair and maintenance.Therefore, move safelyr, can not lose efficacy moment and cause production accident, incur loss through delay to produce, simple in structure, safeguard conveniently simultaneously, working life is longer.
Claims (2)
1, a kind of double-layer transmission pin shaft chain, it is characterized in that, it is connected to form successively by several bearing pin chain unit, wherein, each bearing pin chain unit is connected to form by inner link and outer link, and inner link is made up of two axle sleeves (1), two carrier bars (3) and two fasteners (4), and the interior edge face of two carrier bars (3) is relative, two axle sleeves (1) pass the corresponding hole of two carrier bars (3), axle sleeve (1) and hole interference fit respectively; Fastener (4) is fixed in inner link carrier bar (3) center, exterior edge face.Outer link is made up of two carrier bars (3), two bearing pins (2) and four axle beds (5), and the exterior edge face of two carrier bars (3) is relative, and four axle beds (5) penetrate respectively in the hole of two carrier bars (3) from outside to inside, axle bed (5) and hole interference fit; The axle bed of installing relatively on the carrier bar (5) is inserted at the two ends of two bearing pins (2) respectively, and the radius of bearing pin (2) is less than the axis hole radius of axle bed (5).Inner link and outer link cooperate with the coaxial socket joint of axle sleeve (1) by bearing pin (2) and form hinge, and outer chain and interior chain can center on bearing pin (2) and move in a circle.
According to the described double-layer transmission pin shaft chain of claim 1, it is characterized in that 2, described bearing pin (2) is made up of overcoat (22) and interior bearing pin (21) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100990689A CN101571178A (en) | 2009-06-02 | 2009-06-02 | Double-layer transmission pin shaft chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100990689A CN101571178A (en) | 2009-06-02 | 2009-06-02 | Double-layer transmission pin shaft chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571178A true CN101571178A (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100990689A Pending CN101571178A (en) | 2009-06-02 | 2009-06-02 | Double-layer transmission pin shaft chain |
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|---|---|
| CN (1) | CN101571178A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570961A (en) * | 2017-09-07 | 2018-01-12 | 湖州师范学院 | Shopping cart special lift exports the assembly method of conveyer |
| CN109708131A (en) * | 2019-02-18 | 2019-05-03 | 青岛达能环保设备股份有限公司 | Dropforged chain drive-type submerged slag conveyor |
| CN109703984A (en) * | 2019-02-18 | 2019-05-03 | 青岛达能环保设备股份有限公司 | The removable dropforged chain of submerged slag conveyor |
| CN109941673A (en) * | 2019-04-25 | 2019-06-28 | 浙江安驰机械有限公司 | A kind of durable industrial conveyor chain of Portable dismantling type |
| CN114060468A (en) * | 2021-12-03 | 2022-02-18 | 湖南响箭重工科技股份有限公司 | Double-layer tank chain device |
-
2009
- 2009-06-02 CN CNA2009100990689A patent/CN101571178A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570961A (en) * | 2017-09-07 | 2018-01-12 | 湖州师范学院 | Shopping cart special lift exports the assembly method of conveyer |
| CN109708131A (en) * | 2019-02-18 | 2019-05-03 | 青岛达能环保设备股份有限公司 | Dropforged chain drive-type submerged slag conveyor |
| CN109703984A (en) * | 2019-02-18 | 2019-05-03 | 青岛达能环保设备股份有限公司 | The removable dropforged chain of submerged slag conveyor |
| CN109703984B (en) * | 2019-02-18 | 2024-02-02 | 青岛达能环保设备股份有限公司 | Detachable die forging chain for scraper slag dragging machine |
| CN109941673A (en) * | 2019-04-25 | 2019-06-28 | 浙江安驰机械有限公司 | A kind of durable industrial conveyor chain of Portable dismantling type |
| CN114060468A (en) * | 2021-12-03 | 2022-02-18 | 湖南响箭重工科技股份有限公司 | Double-layer tank chain device |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091104 |