EP3887689A1 - Kettenglied und kette und kettenrad - Google Patents
Kettenglied und kette und kettenradInfo
- Publication number
- EP3887689A1 EP3887689A1 EP19808608.4A EP19808608A EP3887689A1 EP 3887689 A1 EP3887689 A1 EP 3887689A1 EP 19808608 A EP19808608 A EP 19808608A EP 3887689 A1 EP3887689 A1 EP 3887689A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chain
- stop
- chain link
- recess
- link
- 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.)
- Withdrawn
Links
- 230000007704 transition Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/12—Chain links
- F16G15/14—Chain links made of sheet metal, e.g. profiled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/12—Chain links
Definitions
- the invention relates to a chain link with a first recess and a second recess for receiving one chain pin each.
- the invention also relates to a chain with several of these chain links and a sprocket for use with the water chain and a drive unit with chain and sprocket.
- Such a known chain link is used for chains, for example in chain conveyors.
- Large tensile forces during operation regularly result in great wear.
- the chain pin couples two outer links and two inner links, as a result of which the most severely affected wearing part in the event of great pull is disadvantageously the chain pin or a bearing sleeve arranged around it.
- plain bearing bushes made of special materials are often used, e.g. made of brass, bronze or plastic. In high-temperature applications of more than 180 ° C, these bushings flow away or who are rolled flat with the ring surface.
- the object of the invention is thus seen in further developing the chain link of the type mentioned at the outset in such a way that all forces during operation are always in the chain link.
- the object of the invention is further seen in further developing the chain of the type mentioned in such a way that wear of the chain pin is avoided ver. Furthermore, the object of the invention is seen in the further development of the sprocket of the type mentioned in such a way that it can be used for a low-wear or even wear-free chain.
- a chain link with a first recess and a second recess for receiving a chain pin that in the region of the first recess an axially outward Directed first stop and in the region of the second recess also a second stop directed axially outward but in the opposite direction to the first stop are provided such that tensile forces are transmitted via the stops during operation.
- the above chain link can also be referred to as a chain link.
- a recess can e.g. be designed as a groove with a terminal partially open hole and in particular as a bore.
- the designation bore should not be understood as restricting the manufacturing process.
- the chain link and the recesses therein can be achieved in particular by stamping and reshaping.
- a chain according to the invention comprises a plurality of chain links, each chain link having a first recess and a second recess for receiving a chain pin each, an axially outwardly directed first stop in the region of the first recess and a likewise axially inward in the region of the second recess on the outside, but in the opposite direction to the first stop, a second stop is provided such that tensile forces are transmitted via the stops during operation, the chain links being connected to one another in at least one row by chain pins, such that two chain links are arranged on each chain pin, wherein at least one traction surface of two adjacent chain links lie against each other when traction.
- a chain wheel according to the invention for use with chain links according to the invention or with a chain according to the invention has a rotation axis and several teeth which define an annular plane which runs perpendicular to the axis of rotation, the chain wheel having several chain supports projecting axially from the plane for support of a chain link on the respective chain support.
- first stop and the second stop each have a tensile surface running perpendicular to the longitudinal center line of the chain link.
- the chain link is displaced with respect to a central axis of a chain pin by the tensile forces, so that partial forces could still act on the chain pin.
- an embodiment of the invention provides that the traction surface of the first stop is arranged centrally to the first recess and the traction surface of the second stop is arranged centrally to the second recess.
- a development of the invention therefore provides that the first stop and the second stop each have a support surface running parallel to the longitudinal center line of the chain link for support on a chain wheel.
- the chain link is now supported with the support surfaces of the stops on the chain wheel and forces on the chain pin are avoided.
- further supports are required.
- a further embodiment of the invention therefore provides that support edges running obliquely to the longitudinal center line are provided for support on a chain wheel.
- Another embodiment of the invention provides that the first recess is partially open via a first groove and the second recess via a second groove to the outer edge of the chain link. This has manufacturing advantages for the chain link.
- the chain link can be produced from a plate-like base body, where the first stop and the second stop are bent outwards out of the base body.
- the second stop is advantageously longer than the first stop.
- the bend or bend of the stop can advantageously be 90 ° relative to the basic body. Otherwise undesired relative movements can occur.
- the chain according to the invention with a plurality of chain links according to the invention has an at least one-row arrangement such that two chain links are arranged on each chain pin, with at least one traction surface of two adjacent chain links lying against one another when the train is pulled.
- An advantageous embodiment of the invention provides that a two-row arrangement of the chain links is provided such that four chain links are arranged on each chain pin.
- the traction areas are again correspondingly.
- a sprocket according to the invention has an axis of rotation. Furthermore, the teeth define an annular plane that is perpendicular to the axis of rotation.
- the sprocket can be constructed, for example, plate-shaped, so that the plat tenplane of the sprocket runs along the aforementioned annular plane. However, some areas of the chain wheel can also protrude or be set back from the annular plane. Axially, with respect to the axis of rotation, several chain supports protrude from said annular plane, which are used to support a chain link on the chain wheel, in particular when deflecting the chain.
- the axially extending chain support can be provided in the chain wheel for use with the chain links according to the invention or with the chain according to the invention between two adjacent teeth.
- the chain link In the course of the deflection of a chain link or a chain, the chain link must be supported on various areas on the chain support.
- a further embodiment of the invention therefore provides that the chain support has a support surface for supporting the support edges of the chain link.
- the chain support has a support side surface for supporting the support surface of the second stop. The chain link is moved in the pulling direction by rotating the chain wheel.
- each tooth has a radially extending contact surface for contact with an engagement surface of the second stop. The contact surface presses when the chain wheel rotates against the engagement surface, so that the forces are only transmitted to the stop and not to a chain pin.
- a drive unit comprising the chain according to the invention and the chain wheel according to the invention.
- the chain can be deflected in an embodiment by the sprocket in such a way that in the deflection area of the sprocket a chain link with a first stop abuts against a second stop of a first adjacent chain link and a second stop of the chain link from a first stop of a second adjacent chain link is angularly spaced.
- the corresponding traction surfaces of the abutting stops of two adjacent chain links are arranged in the deflection area of the chain wheel radially to the axis of rotation of the chain wheel in a first spatial direction and perpendicular to the axis of rotation of the chain wheel in a second spatial direction. This advantageously avoids relative movements to the axis.
- the chain can be used as a lubrication-free chain.
- Preferred applications of such chains are chain conveyors or car washes.
- the chain can easily be used in existing systems.
- FIG. 1 is a perspective view of a first embodiment of a chain link
- FIG. 1 is a side view of FIG. 1,
- FIG. 2 is a plan view of FIG. 2
- FIG. 4 shows a rear view according to FIG. 3,
- FIG. 5 is a perspective view of a chain in a broken view and in a partially exploded view with a sprocket as part of a drive unit,
- Figure 6 is another perspective view of a broken chain with sprocket.
- Fig. 7 is a side view of Fig. 6;
- Fig. 8 is a schematic representation of a second embodiment of a chain ten links.
- the chain link 1 according to the invention from FIG. 1 has a base plate 2 with a first recess 3 and a second recess 4.
- a central axis 5 of the first recess 3 and a central axis 5 of the second recess 4 are arranged on a longitudinal center line 6 of the base plate 2.
- the base plate 2 is made of metal and has a round profile 7, 8 at both ends.
- the round profile 7 has at its free end a first stop 9, which is arranged in the area of the first recess 3.
- the first stop 9 is directed axially outwards with respect to the central axis 5 in such a way that it extends perpendicular to a plate plane of the base plate 2.
- a second stop 10 is provided, which is arranged in the region of the second recess 4.
- the second stop 10 also extends axially with respect to the central axis 5, but in the opposite direction to the first stop 9.
- the second stop 10 also extends perpendicular to the plate plane in which the base plate 2 lies.
- the second stop 10 lies with respect to the longitudinal center line 6, thus on the other side as the first stop 9, which lies above with respect to the longitudinal center line 6.
- the second stop 10 is somewhat longer than the first stop 9.
- the first stop 9 is connected to the round profile 7 via a deflection region 11 of 90 degrees.
- the second stop 10 is connected to the round profile 8 via a deflection region 12 of 90 degrees.
- the deflection area 11 and the deflection area 12 protrude only slightly beyond the side walls 13, 14 of the base plate 2.
- the first stop 9 has a traction surface 15.
- the second stop 10 also has a traction surface 16.
- the traction surface 15 and the traction surface 16 each run perpendicular to the plane of the plate in which the base plate 2 lies, and thus also perpendicular to the longitudinal center line 6 of the chain link 1. If several chain links 1 are connected in a chain, these traction surfaces 15 lie,
- the traction surface 15 of the chain link 1 in front is located on the traction surface 16 of the subsequent chain link 1 and the traction surface 16 of the first chain link 1 lies on the traction surface 15 of the chain link 1 below.
- the traction surface 15 of the first stop 9 is aligned centrally to the first recess 3 and thus centrally to the central axis 5 and the traction surface 16 of the second stop 10 is also centrally aligned to the second recess 4 and thus centrally to the central axis 5 of the second recess 4.
- the round profile 7 of the chain link 1 merges into a trapezoidal central part 17 of the chain link 1 in its closed area. Accordingly, the trapezoidal middle part 17 merges on the other side into the closed area of the round profile 8.
- the middle part 17 has a lower edge 18 and an upper edge 19.
- the lower edge 18 and the upper edge 19 both run parallel to the longitudinal center line 6 of the chain link 1.
- the middle part 17 has a first inclined support edge 20 and a second inclined support edge 21.
- the first support edge 20 and also the second support edge 21 run at approximately 35 degrees with respect to the longitudinal center line 6 of the chain link 1.
- the support edge 20 forms a boundary of a first groove 23 which extends from the first recess 3 to an outer border of the chain link 1 in such a way that the first recess 3 is partially open to the outer border of the chain link 1.
- the second support edge 21 forms a boundary of a second groove 24 which extends from the second recess 4 to the outer edge of the chain link 1 in such a way that the second recess 4 is partially open to the outer edge.
- the chain link 1 is thus approximately S-shaped.
- the first stop 9 also has a support surface 25.
- the second stop 10 has a support surface 26.
- the support surface 25 and the support surface 26 each run parallel to a longitudinal center plane of the chain link 1, in which the longitudinal center line 6 also lies.
- the support surface 25 and the support surface 26 the NEN for support on a sprocket.
- the support surface 25 extends perpendicular to the tension surface 15 and the support surface 26 extends perpendicular to the tension surface 16.
- FIG. 5 shows a broken view of a chain 100 with the chain links according to the invention.
- Two types of links are used to build the chain 100.
- the chain 100 has a first outer chain link 201, as shown in FIG.
- the first stop 9 of the inner chain link 401 is seen in the pulling direction 28 on the second stop 10 of the preceding outer chain link 201.
- the construction of the chain 100 continues accordingly on this chain side.
- the structure is designed accordingly on the other side of the chain.
- the first stop 9 of the outer chain link 301 bears against the second stop 10 of the inner chain link 501.
- the first stop 9 of the inner chain link 501 lies against the second stop 10 of the previous outer chain link 301.
- a special sprocket 50 is required to operate the chain 100.
- the chain tenrad 50 has a plurality of teeth 51, which come into engagement between the outer chain links 201, 301 and the inner chain links 401 and 501 during operation.
- Each tooth 51 is flat on its upper side 52.
- Each tooth 51 has a contact surface 54 on its front side viewed in the direction of rotation 53, which extends radially to the central axis 55 of the chain wheel 50. If the chain 100 is moved in the pulling direction 28, then the contact surface 54 comes to rest with a grip surface 29 of the stop 10 of the outer chain link 201.
- the engagement surface 29 is arranged at the stop 10 on the opposite side to the pull surface 1 6. In this way, the chain 100 is moved by the chain wheel 50 in the direction of rotation 53.
- a chain support 56 is provided between two teeth 51.
- the chain support 56 is cuboid and mounted on the circumferential surface of the sprocket 50.
- the chain support 56 has an outward support surface 57 and an outward support side surface 58.
- the chain support 56 protrudes on both sides of the sprocket 50 beyond the thickness of the sprocket 50.
- the support surface 26 of the second stop 10 of the inner chain link 401 is initially supported on the support side surface 58 the chain support 56.
- the support edge 21 of the outer chain link 301 or 201 is supported on the support surface 57.
- the supporting process in the course of the chain movement of the chain 100 via the sprocket 50 can be clearly seen in FIGS. 6 and 7. While the foremost outer chain link 301 is supported with its support edge 21 on the support surface 57, the stop 10 of the inner chain links 401 and 501 is supported with its support surface 26 on the support side surface 58 of the chain support 56 in the two subsequent chain links. In the case of the outer chain link 301 following the first outer chain link 301, the support edge 21 is also supported on the support surface 57 at the same time. As a result, the stop 10 of the inner chain link 501 and the stop 9 of the outer chain link 301 move away from one another, so that the chain 100 can unwind via the chain wheel 50.
- the chain support 56 is arranged in the middle between two teeth 51. Starting from the chain support 56, a first concave transition region 59 is provided in the direction of rotation 53. Contrary to the direction of rotation 53 towards the tooth 51, a second bulbous transition region 60 is provided starting from the chain support 56.
- the transition regions 59 and 60 are designed in such a way that they do not negatively influence the chain flow via the chain wheel.
- Fig. 5 also shows the definition of the chain pin 27 links to the outside of the chains. This takes place via two terminal snap rings 61 each. Furthermore, the chain bolts 27 are provided with bearing rings 62. The chain pin 27 is also provided with a bearing sleeve 64 which is slipped over the chain pin. The bearing sleeve 64 and / or the bearing rings 62 enables the replacement of lubricants, so that the chain 100 can be designed as a lubrication-free chain, in particular as a high-performance chain for operating temperatures of more than 180 ° C.
- the bearing sleeve 64 can be understood as a plain bearing bush and made of brass, bron ze or plastic. These soft materials enable lubricant-free storage. At the same time, they are not rolled flat due to the new power transmission of the tensile forces.
- two adjacent chain links 301 and 501 preferably form a unit in the manner of a chain link.
- This unit can preferably be between 140 to 180 mm long.
- Chain pin 27 Since the chain pin 27 no longer has to absorb tensile forces, it can also be made smaller. Material removal on the chain pin 27 no longer occurs. Chain bolts with a diameter of less than 16 mm can be used for the chain and even chain bolts in the range between 8 and 12 mm.
- Chains of this type require little maintenance and are arranged within a system in such a way that no dirt is introduced.
- Individual chain bolts can also have a support roll 63, which are used to transfer loads.
- C45 tempered steel can be used as the material for the chain links. Areas that are subject to high mechanical stress, such as the supporting surfaces, supporting edges and tensile surfaces, can also be treated by hardening the surface layer.
- the other areas can remain untreated and are therefore not subject to material embrittlement.
- FIG. 8 shows a second alternative embodiment of a chain link 1 according to the invention.
- This chain link 1 ' has a first and a second recess 3' and 4 'for receiving a chain pin.
- the recesses 3 'and 4' is However, unlike in Fig. 1 and 2, not open by a groove to the outer edge of the chain link, but they are closed by an edge portion 70 of the recess 3 'or 4', so that the recess as a hole 71, in particular special is designed as a circular hole, through which the chain pin can be inserted perpendicular to the longitudinal center axis 6 '.
- the stops 9 'and 10' are narrower in this variant than in the variant of FIGS. 1 and 2, but also have traction surfaces 15 'and 16' with an analogous function to FIGS. 1 and 2.
- the chain link can be used analogously to the chain link of FIGS. 1 and 2, but the assembly of the chain pin is evidently somewhat more complex.
- the stops 9 'and 10' are bent out in opposite directions from the base body or the base plate 2 '.
- the chain link 1 ' has support edges (20' and 21 'which run obliquely to the longitudinal center line 6' and which serve for support on a chain wheel 50.
- the chain wheel of the previous figures can be used analogously with a chain composed of the chain links 1 ' will.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18208867.4A EP3660350B1 (de) | 2018-11-28 | 2018-11-28 | Kettenglied und kette mit kettenrad |
| PCT/EP2019/082778 WO2020109405A1 (de) | 2018-11-28 | 2019-11-27 | Kettenglied und kette und kettenrad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3887689A1 true EP3887689A1 (de) | 2021-10-06 |
Family
ID=64556762
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18208867.4A Active EP3660350B1 (de) | 2018-11-28 | 2018-11-28 | Kettenglied und kette mit kettenrad |
| EP19808608.4A Withdrawn EP3887689A1 (de) | 2018-11-28 | 2019-11-27 | Kettenglied und kette und kettenrad |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18208867.4A Active EP3660350B1 (de) | 2018-11-28 | 2018-11-28 | Kettenglied und kette mit kettenrad |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP3660350B1 (de) |
| ES (1) | ES2882128T3 (de) |
| WO (1) | WO2020109405A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465929A (en) * | 1945-01-09 | 1949-03-29 | Gifford Wood Co | Chain |
| FR1048178A (fr) * | 1952-01-07 | 1953-12-21 | Chaîne | |
| US2679762A (en) * | 1953-02-04 | 1954-06-01 | Norman T Paulsen | Sprocket chain |
| GB851929A (en) * | 1957-05-16 | 1960-10-19 | Wilfred Herbert Bendall | Drive chain |
| GB1144735A (en) * | 1967-01-17 | 1969-03-05 | Amsted Ind Inc | Power-transmission chain |
| DE2909893C2 (de) * | 1979-03-14 | 1982-07-29 | Heinrich Schlick KG, GmbH & Co, 4402 Greven | Band für eine Muldenband-Reinigungsvorrichtung |
-
2018
- 2018-11-28 EP EP18208867.4A patent/EP3660350B1/de active Active
- 2018-11-28 ES ES18208867T patent/ES2882128T3/es active Active
-
2019
- 2019-11-27 WO PCT/EP2019/082778 patent/WO2020109405A1/de not_active Ceased
- 2019-11-27 EP EP19808608.4A patent/EP3887689A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP3660350B1 (de) | 2021-07-07 |
| EP3660350A1 (de) | 2020-06-03 |
| ES2882128T3 (es) | 2021-12-01 |
| WO2020109405A1 (de) | 2020-06-04 |
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