CA2338183A1 - Plate link chain comprising an inspection plate for verifying an unacceptable chain length - Google Patents
Plate link chain comprising an inspection plate for verifying an unacceptable chain length Download PDFInfo
- Publication number
- CA2338183A1 CA2338183A1 CA002338183A CA2338183A CA2338183A1 CA 2338183 A1 CA2338183 A1 CA 2338183A1 CA 002338183 A CA002338183 A CA 002338183A CA 2338183 A CA2338183 A CA 2338183A CA 2338183 A1 CA2338183 A1 CA 2338183A1
- Authority
- CA
- Canada
- Prior art keywords
- chain
- plate
- link
- inspection
- strand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
- Chain Conveyers (AREA)
- Escalators And Moving Walkways (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention relates to a plate link chain which is used as a conveyor chain, especially for a bucket elevator or similar conveying means, and which is comprised of at least two parallel strands of individual plates arranged as inner plates and outer plates (11). The individual plates are connected to one another by chain pins (13) which are arranged in a transversal manner with regard to the plane of the plate. At least one additional plate is arranged between two adjacent chain pins (13) on the outer side of the corresponding outer plate (11) of a chain strand. One end of said additional plate (16) is placed on one chain pin (13), and the other end is placed on the adjacent chain pin (13). The inventive plate link chain should make it possible to determine the elongation of the chain. To this end, the invention provides that the additional plate (16) is configured as an inspection plate (16) for showing the occurrence of an elongation of the chain. The inspection plate (16) rests with the recess thereof on the chain pin (13) and pivots out of the plane of the plate in the instance of a corresponding elongation of the chain.
Description
PLATE LINK CHAIN COMPRISING AN INSPECTION PLATE
FOR VERIFYING AN UNACCEPTABLE CHAIN LENGTH
Description The presestt invention relates to a sprocket chain used as a convey,~r chain, especially fvr a bucket elevator or similar conveyor means, which comprises at least two strand$ of individua,( (inks that ors arranged parallel to each rather, whereby the individual links are connected to one another by means of chain pins arranged transverseay to the plane of the links such that each chain strand comprises alternately , arranged Inner links and outer links and eactr chain bolt carries an inner link and an outerlink'of both ctl~ptl strands, whereby a bushing supporting the inner links of isoth chain strands is arranged for mounting the inner links on the chain bolt, and whereby ,arranged between two adjacent chain baits an the cuter side of the pertaining outer link of a chain strand 1~ is at least vne addifionai link that at its one end is mounted cn the one chain bolt and the other end of which red against the adjacent chain bolt.
Irt such sprocket chains there is the problem that the wear that occurs on the individual links and on the Chain E~nlts carrying them results in elongation of the sprocket chain, and if such elongation exceeds an acceptable mea3ure it can lead to pr~obiems when the sprocket chain is aperateci_ In a sprocket chain with the aforesair~ features as described in DE-GM 93 'i~4 261, the additional link provided there, and that is attached at both ends, holds an engaging piece in conjunction with an attached damping device.
This object of the pn~ent invention is therefore to fashion, for a sprocket chain of the type cited in the foregoing, an optien that is efficient and simple to construct that can be used to determine an elongation In the chain that exceeds the acceptable measure.
The abject is achieved, indudin~ advantageous embodiments and further developments of the present invention. from tine contents of the patent claims filet fallow this spac~cation.
The basic idea of the present invetltion is that the additional link is embodied as an inspection plate for showing the occurrence of an elongation of the chain in that its other end rests against the adjacent chain pin in a positive fit connection and, ~nrhen the distance between the t 5 chain pins increases by a spec~C amount due ts~ the elongation in the chain, this eliminates the paaitiwe fit connection and the inspection plate pivots about the other chain pin rout of the longitudinal axis of the chain strand_ The present invention has the advantage that the additional arrangement of an inspection plate is not particularly complex, in particular, metrological complexity is not required to detect an efongativn of the chain that has a potentially complex structure. t=or Showing tile occurrence of an elongat;on in the chain it is merely necessary to _i.
fabricate the inspection plate and to use at least two chain pins with a somewhat longer axial extension so that there is sufficient room for arranging the inspection plate on these two adjacent chain pins that are to tae used. Since experience has demonstrated that the wear of a sprocket chain occurs very uniformly over its length, the arrangement of just one inspection plate can be sufficienk in a sprocket chain.
DE-ADS 2$11 ~4~ describes an additional link ernbadied as a chain joint for securing a special link that carries an engaging piece and that is tv be inserted in the sprocket chain. This link has a chain pin attached at 1~ one end aryd at its free end Surrounds the associated adjacent chain pin in ~a positive fit. However, it is not provided that the end of the additional link, which is urwdetachably connected to the chain pin, be released: this would contradict the safety function of the additional link.
The additional link provided in DE-AS 1 p Q4 54~ also secures the i5 hinge pin csnying it against rotation and secures the ropers svats!d on the hinge pin against axial displacement. The additions( link known from »E
34 19 981 A1 makes it passibt~ to displ2ce the chain halt connected to it and one of the fiunctional links carried bye the chain pin transversely to the longitudinal axis of the chain strand, while the additional link disclosed 2Q in DE-tJS 18 OS 068 is provided for reinforcing the holding of conveyor buckets. Finally, DE 33 47 340 At shows hinged, reinforced locking links at the side ends of the chain pins that extend axially v~rer the outer finks:
.; _ these reinforced locking links make it possible to open the chain strand and thus to change the Length of the chain easily. Thus none of the additional linlES known in prior art relates to determining the occurrence of elongation in tha chain.
In acGOrdance with one exemplary embodiment of the present invention, it Is prrnrid~ that the inspection piste has at its end opposing the mounting a recess itZat partially surrounds the associated chain bolt and that is ap~en on one side. whereby the messune of the mutual axial trveriap of recess and chain pin corresponds to the permissible chain 1D elongation. so that when this permissible chain elongation is exceeded the connection of the recess to the chain pin is eliminated and the inspection plate is caused to mo a out of the longitudinal axis of the associated chain strand.
It can be provided that a plurality of inspection plates are distributed aver tha chain strand of a sprocket chain.
In accordance with another exemplary embodiment of .the invention, to detect a deviating position of the inspection plate when elpngation of the chain oCCUrs, an inspaotion station associated with the sprocket chain cdn be provided, for example in the form of a light cabinet or mechanical sensor.
The drawing illustrates one exemplary embodiment of the present invention that is described in the following:
Fig. Z is a tap uiew of a sprva:~et chain with two chain strands;
Fig. 2 is a side view or' the inspectiar ~ plate arranged between tvyo adjacent link or criain pins.
The sprocltet chain illustrated In Figure 1 comprises twa parallel chain stra~nda 1 ~, whereb~r each chain stand constitutes aiternatingly arranged inr<er link members or links 1~ and outer link members or links 1 Z. The chain or link pins 13 prcwided for connecting the inner and cuter links Ire each chain strand 10 each carry one Inner link ~ 2 and one outer Ie? link 11 of each chain strand 1Q, ~rhereby a l~~rshing 14 supporting the inner links 12 of both chain strands 10 is arranged for positioning the inner links 1~ crn the chain pin 73. The outer links 19 and the inner links 1 ~ of at least one chain strand 117 are provided with suspension members far cr~nnecting, for example, buckets, v~rhen a sprocket chain is 15 employed in a bucket elevator.
Between two adjacent chain pins 13, and placed on the outer side of a chain strand 1 D on the chain pins 13, which thus have a longer axial extensiart, is an inspection plate or side place 76, the design ofiwhict~ can be seen in detail In Figure ~.
2iJ One end~of the inspection plate 16 is mounted via a bearing bone 17 an the one Chain pin 1 ~, and at its other end the inspection plate 1B
has a recess 18 that is open vn one side and with which the inspection f plate 16 partially engac~ss the associated chain pin 13 irw a form-ft or positiue connection. i he oueriap defined by the enaagernent of tha inspection plate in~ the axial direction and labeled 19 corresponds to the perni~ssibie chain elongation, vrhich ieadsto the situation that this form-1"nt connection is eliminated when the spraclcet chain elongates beyond the measure of tt~e~ avectap '19, and the inspectifln plate 16 - at least in a horizontally extending sprocket chain - assumes the position iAustrated in Figure 2 in which the inspection plate deviates from the direction in which the chain strand '10 runs so that this de~riating position of the Inspection plate can be detected by means of a suitable inspection sta~on, far example in the form of a light cabinet or. sensor apparatus. !f the inspection station determines such a deviating position, it is easy to recognize that tire aiongation in the chain has exceeded the permissinl~e maasure.
g The features of the subject of this d~ocumer~t that are disoiosed in the fQregving specification, the patent claims, the abstract. and the dr'a~vin~s can be essential to rWizing the invention in its various erniwdiments, individually and~in any combination.
-s-f
FOR VERIFYING AN UNACCEPTABLE CHAIN LENGTH
Description The presestt invention relates to a sprocket chain used as a convey,~r chain, especially fvr a bucket elevator or similar conveyor means, which comprises at least two strand$ of individua,( (inks that ors arranged parallel to each rather, whereby the individual links are connected to one another by means of chain pins arranged transverseay to the plane of the links such that each chain strand comprises alternately , arranged Inner links and outer links and eactr chain bolt carries an inner link and an outerlink'of both ctl~ptl strands, whereby a bushing supporting the inner links of isoth chain strands is arranged for mounting the inner links on the chain bolt, and whereby ,arranged between two adjacent chain baits an the cuter side of the pertaining outer link of a chain strand 1~ is at least vne addifionai link that at its one end is mounted cn the one chain bolt and the other end of which red against the adjacent chain bolt.
Irt such sprocket chains there is the problem that the wear that occurs on the individual links and on the Chain E~nlts carrying them results in elongation of the sprocket chain, and if such elongation exceeds an acceptable mea3ure it can lead to pr~obiems when the sprocket chain is aperateci_ In a sprocket chain with the aforesair~ features as described in DE-GM 93 'i~4 261, the additional link provided there, and that is attached at both ends, holds an engaging piece in conjunction with an attached damping device.
This object of the pn~ent invention is therefore to fashion, for a sprocket chain of the type cited in the foregoing, an optien that is efficient and simple to construct that can be used to determine an elongation In the chain that exceeds the acceptable measure.
The abject is achieved, indudin~ advantageous embodiments and further developments of the present invention. from tine contents of the patent claims filet fallow this spac~cation.
The basic idea of the present invetltion is that the additional link is embodied as an inspection plate for showing the occurrence of an elongation of the chain in that its other end rests against the adjacent chain pin in a positive fit connection and, ~nrhen the distance between the t 5 chain pins increases by a spec~C amount due ts~ the elongation in the chain, this eliminates the paaitiwe fit connection and the inspection plate pivots about the other chain pin rout of the longitudinal axis of the chain strand_ The present invention has the advantage that the additional arrangement of an inspection plate is not particularly complex, in particular, metrological complexity is not required to detect an efongativn of the chain that has a potentially complex structure. t=or Showing tile occurrence of an elongat;on in the chain it is merely necessary to _i.
fabricate the inspection plate and to use at least two chain pins with a somewhat longer axial extension so that there is sufficient room for arranging the inspection plate on these two adjacent chain pins that are to tae used. Since experience has demonstrated that the wear of a sprocket chain occurs very uniformly over its length, the arrangement of just one inspection plate can be sufficienk in a sprocket chain.
DE-ADS 2$11 ~4~ describes an additional link ernbadied as a chain joint for securing a special link that carries an engaging piece and that is tv be inserted in the sprocket chain. This link has a chain pin attached at 1~ one end aryd at its free end Surrounds the associated adjacent chain pin in ~a positive fit. However, it is not provided that the end of the additional link, which is urwdetachably connected to the chain pin, be released: this would contradict the safety function of the additional link.
The additional link provided in DE-AS 1 p Q4 54~ also secures the i5 hinge pin csnying it against rotation and secures the ropers svats!d on the hinge pin against axial displacement. The additions( link known from »E
34 19 981 A1 makes it passibt~ to displ2ce the chain halt connected to it and one of the fiunctional links carried bye the chain pin transversely to the longitudinal axis of the chain strand, while the additional link disclosed 2Q in DE-tJS 18 OS 068 is provided for reinforcing the holding of conveyor buckets. Finally, DE 33 47 340 At shows hinged, reinforced locking links at the side ends of the chain pins that extend axially v~rer the outer finks:
.; _ these reinforced locking links make it possible to open the chain strand and thus to change the Length of the chain easily. Thus none of the additional linlES known in prior art relates to determining the occurrence of elongation in tha chain.
In acGOrdance with one exemplary embodiment of the present invention, it Is prrnrid~ that the inspection piste has at its end opposing the mounting a recess itZat partially surrounds the associated chain bolt and that is ap~en on one side. whereby the messune of the mutual axial trveriap of recess and chain pin corresponds to the permissible chain 1D elongation. so that when this permissible chain elongation is exceeded the connection of the recess to the chain pin is eliminated and the inspection plate is caused to mo a out of the longitudinal axis of the associated chain strand.
It can be provided that a plurality of inspection plates are distributed aver tha chain strand of a sprocket chain.
In accordance with another exemplary embodiment of .the invention, to detect a deviating position of the inspection plate when elpngation of the chain oCCUrs, an inspaotion station associated with the sprocket chain cdn be provided, for example in the form of a light cabinet or mechanical sensor.
The drawing illustrates one exemplary embodiment of the present invention that is described in the following:
Fig. Z is a tap uiew of a sprva:~et chain with two chain strands;
Fig. 2 is a side view or' the inspectiar ~ plate arranged between tvyo adjacent link or criain pins.
The sprocltet chain illustrated In Figure 1 comprises twa parallel chain stra~nda 1 ~, whereb~r each chain stand constitutes aiternatingly arranged inr<er link members or links 1~ and outer link members or links 1 Z. The chain or link pins 13 prcwided for connecting the inner and cuter links Ire each chain strand 10 each carry one Inner link ~ 2 and one outer Ie? link 11 of each chain strand 1Q, ~rhereby a l~~rshing 14 supporting the inner links 12 of both chain strands 10 is arranged for positioning the inner links 1~ crn the chain pin 73. The outer links 19 and the inner links 1 ~ of at least one chain strand 117 are provided with suspension members far cr~nnecting, for example, buckets, v~rhen a sprocket chain is 15 employed in a bucket elevator.
Between two adjacent chain pins 13, and placed on the outer side of a chain strand 1 D on the chain pins 13, which thus have a longer axial extensiart, is an inspection plate or side place 76, the design ofiwhict~ can be seen in detail In Figure ~.
2iJ One end~of the inspection plate 16 is mounted via a bearing bone 17 an the one Chain pin 1 ~, and at its other end the inspection plate 1B
has a recess 18 that is open vn one side and with which the inspection f plate 16 partially engac~ss the associated chain pin 13 irw a form-ft or positiue connection. i he oueriap defined by the enaagernent of tha inspection plate in~ the axial direction and labeled 19 corresponds to the perni~ssibie chain elongation, vrhich ieadsto the situation that this form-1"nt connection is eliminated when the spraclcet chain elongates beyond the measure of tt~e~ avectap '19, and the inspectifln plate 16 - at least in a horizontally extending sprocket chain - assumes the position iAustrated in Figure 2 in which the inspection plate deviates from the direction in which the chain strand '10 runs so that this de~riating position of the Inspection plate can be detected by means of a suitable inspection sta~on, far example in the form of a light cabinet or. sensor apparatus. !f the inspection station determines such a deviating position, it is easy to recognize that tire aiongation in the chain has exceeded the permissinl~e maasure.
g The features of the subject of this d~ocumer~t that are disoiosed in the fQregving specification, the patent claims, the abstract. and the dr'a~vin~s can be essential to rWizing the invention in its various erniwdiments, individually and~in any combination.
-s-f
Claims (4)
1. Sprocket chain used as a conveyor chain, especially for a bucket elevator or similar conveyer means, which comprises at least two strands of individual links that are arranged parallel to each other, whereby the individual links are connected to one another by means of chain pins arranged transversely to the plane of the link such that each chain strand comprises alternately arranged inner links and outer links and each chain bolt carries an inner link and an outer link of both chain strands, whereby a bushing supporting the inner links of both chain strands is arranged for mounting the inner links on the chain bolt, and whereby arranged between two adjacent chain bolts on the outer side of the pertaining cuter link of a chain strand is at least one additional link that at its one end is mounted on the one chain bolt and the other end of which rests against the adjacent chain bolt, characterized in that said additional link (16) is embodied as an inspection plate for shoring the occurrence of an elongation of said chain in that its other end rests against the adjacent chain pin (13) in a positive fit connection and when the distance between said chain pins (13) increases by a specific amount due to the elongation in the chain, this eliminates the positive fit connection and said inspection plate pivots about the other chain pin (13) out of the longitudinal axis of said chain strand,
2. Sprocket chain in accordance with claim 1, characterized in that said inspection plate (16) has at its end opposing the mounting (bearing bore 17) a recess (18) that partially surrounds the associated chain bolt (13) and that is open one one side, whereby the measure of the mutual axial overlap (19) of recess (18) and chain pin (13) corresponds to the permissible chain elongation.
3. Sprocket chain in accordance with claim 1 or 2, characterized in that a plurality of inspection plates (16) are distributed over the chain strand (10) of a sprocket chain.
4. Sprocket chain in accordance with any of claims 1 through 3, characterized by an inspection station associated with said sprocket chain for detecting the position of said inspection plate (16) when it deviates from the course of the chain strand (10).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998134806 DE19834806C1 (en) | 1998-08-01 | 1998-08-01 | Link chain with test bottle |
| DE19834806.1 | 1998-08-01 | ||
| PCT/DE1999/002234 WO2000007909A1 (en) | 1998-08-01 | 1999-07-15 | Plate link chain comprising an inspection plate for verifying an unacceptable chain length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2338183A1 true CA2338183A1 (en) | 2000-02-17 |
Family
ID=7876157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002338183A Abandoned CA2338183A1 (en) | 1998-08-01 | 1999-07-15 | Plate link chain comprising an inspection plate for verifying an unacceptable chain length |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1100734A1 (en) |
| JP (1) | JP2002522317A (en) |
| CN (1) | CN1339009A (en) |
| BR (1) | BR9912840A (en) |
| CA (1) | CA2338183A1 (en) |
| DE (1) | DE19834806C1 (en) |
| TR (1) | TR200100336T2 (en) |
| WO (1) | WO2000007909A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10200582C1 (en) | 2002-01-09 | 2002-10-24 | Aumund Foerdererbau | Mechanical test system for giving warning of unacceptable elongation of chain consists of studs set in inner chain links and visible in cutouts in outer links |
| DE10234626B4 (en) * | 2002-07-29 | 2006-02-23 | Thiele Gmbh & Co. Kg | Safety components made of steel for lifting, lashing, conveying and extraction technology |
| CN109051625B (en) * | 2018-09-20 | 2024-02-02 | 宁夏天地奔牛实业集团有限公司 | Broken chain monitoring device of mining scraper conveyor |
| CN109051627B (en) * | 2018-09-20 | 2024-02-02 | 宁夏天地奔牛实业集团有限公司 | Broken chain monitoring signal processor for mining scraper conveyor |
| CN109051626B (en) * | 2018-09-20 | 2024-02-02 | 宁夏天地奔牛实业集团有限公司 | Broken chain monitoring sensor for mining scraper conveyor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1004545B (en) * | 1954-06-21 | 1957-03-14 | Eickhoff Geb | Intermediate drive for steel link conveyor belts by means of endless drive chains |
| DE1803068C3 (en) * | 1968-10-15 | 1973-10-18 | Anton 4000 Duesseldorf-Benrath Budny | Multiple link chain for bucket elevators |
| DE2811240A1 (en) * | 1978-03-15 | 1979-09-20 | Theodor Fendt | Paternoster chain drive connection - consists of brackets, each with base forming chain link secured by chain link pins |
| DE3321018A1 (en) * | 1983-06-10 | 1984-12-13 | Otmar Fahrion | CHAIN CONVEYOR UNIT |
| DE3347340A1 (en) * | 1983-12-28 | 1985-07-11 | Gerhard 8000 München Lindner | Conveyor chain |
| DE3419981A1 (en) * | 1984-05-29 | 1985-12-05 | Adolf Illig Maschinenbau Gmbh & Co, 7100 Heilbronn | Transport device for plastic sheets in thermoforming machines |
| DE9314261U1 (en) * | 1993-09-21 | 1993-11-25 | Joh. Winklhofer & Söhne GmbH und Co KG, 81369 München | Conveyor link chain and conveyor |
-
1998
- 1998-08-01 DE DE1998134806 patent/DE19834806C1/en not_active Expired - Fee Related
-
1999
- 1999-07-15 EP EP99947240A patent/EP1100734A1/en not_active Withdrawn
- 1999-07-15 JP JP2000563547A patent/JP2002522317A/en active Pending
- 1999-07-15 BR BR9912840-3A patent/BR9912840A/en not_active Application Discontinuation
- 1999-07-15 CN CN 99811199 patent/CN1339009A/en active Pending
- 1999-07-15 CA CA002338183A patent/CA2338183A1/en not_active Abandoned
- 1999-07-15 WO PCT/DE1999/002234 patent/WO2000007909A1/en not_active Application Discontinuation
- 1999-07-15 TR TR2001/00336T patent/TR200100336T2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE19834806C1 (en) | 2000-02-03 |
| JP2002522317A (en) | 2002-07-23 |
| WO2000007909A1 (en) | 2000-02-17 |
| TR200100336T2 (en) | 2001-07-23 |
| EP1100734A1 (en) | 2001-05-23 |
| CN1339009A (en) | 2002-03-06 |
| BR9912840A (en) | 2001-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |