Chain wheel for chain drives

FIELD: transport.

SUBSTANCE: invention relates to chain wheel for chain drives with rotation axis D and two chain link boxes 20, 30 arranged along chain wheel edges nearby each other and sifted relative two each other that cross chain wheel in inclined position. Each box 20, 30 has lateral wall and opposite wall, and webs 31, 21 arranged along circumference. To simplify producing chain wheel for inclined chain links and improve force distribution, this invention proposes make box lateral and opposite walls form support surfaces inclined to rotation axis D and run to box base section.

EFFECT: simplified design, better distribution of forces at chain loading bearing links.

19 cl, 13 dwg

 

The invention relates to a chain wheel for chain drives, with the axis of rotation and with two spaced around the circumference of the chain wheel next to each other and offset relative to each other by groups of pockets for chain links passing chain wheel in an inclined position relative to the wheel axis, each pocket is limited laterally by a lateral wall and the opposite wall, and in the circumferential direction intersections, which plots the side surfaces form the front and rear walls of the pockets of one group for transmission on passing in the pocket of the chain link and which side section to form the side wall of the pockets of the other group.

Sprocket underlying restrictive part of paragraph 1 of the claims, it is known from the document DE 102004009535 A1. Known chain wheel is formed and designed for chain drives lifting appliances and lifts and has on each side surface of the chain wheel five jumpers and, consequently, five pockets on the group. Each group forms a series of pockets pockets pockets which are separated from each other by means of splines, and the areas of the side surfaces of the teeth, except for the transitional zones on the inner space side surfaces are parallel to the axis of rotation of the chain wheel, while the side wall and soo the respective opposite wall is oriented perpendicular to the axis of rotation. One shoulder chain link lies in this case on passing essentially parallel to the axis of the wheel base of the pocket, which lies closer to the axis of rotation, while the other shoulder chain link lies on the upper end sides of the teeth, and comes on the side in contact with the inner area of the side surfaces. The interval between one side wall and the opposite wall is designed so that passing in the pocket of the chain link can move across the axis of rotation to prevent the occurrence of critical stresses. For the manufacture of sprockets must be made two identical half of the chain wheel, which then Rethimno or narashima are connected to each other.

The following chain wheel, in which the links of the link chain can act inclined manner, it is known from the document DE 29713055 U1. This chain wheel is provided with four jumpers in each of the lateral surfaces to produce, respectively, four pockets on the number of pockets. Located closer to the axis of sprocket bearing surface for one shoulder chain formed as passing obliquely to the axis of rotation of the base of the pockets, through which passes parallel to the axis of rotation and respectively of the axle of the rear surface enters step, which is formed by a jumper for ZANYATOSTI another pocket. The opposite longitudinal shoulder (side) chain link built on oriented parallel to the axis of the wheels of the skate jumper, which is provided with a groove or groove for the reception of welding influx on the longitudinal shoulders of the chain links. Each jumper is made so that it is thrown over the middle plane of sprocket formed symmetrically to it, and juts out, so the inside of the pocket, respectively, of another group of pockets. It is also known chain wheel is provided solely for lifting devices.

When used in underground mining chain drives are used sprocket chain transfer or chain wheel, which contain pockets for the reception of the chain lying in the operating mode horizontally, while the connecting links as vertical chain links pass through the gaps between the teeth or sprockets sprockets and obewaut essentially no transfer of tangential efforts on the chain wheel. Depending on the execution chain sprockets and respectively provided with a chain sprocket chain drives chain wheel can be provided with one row of pockets or the two adjacent to each other with a series of pockets for double chain drives.

The objective of the invention is the creation of the chain wheels is for chain links, coming inclined in the chain wheel, which can be manufactured more simply than the well-known chain wheel, and allows for a better distribution of forces on the bearing of the chain links of the link chain passing (obecause) in his pockets.

The above problem can be solved with respective to the invention of the chain wheel by the fact that the side wall and the opposite wall of the pocket formed respectively passing obliquely to the axis of rotation of the support surface for the chain links, and the inclined support surface to pass the area at the base of the pocket. In contrast to the chain wheel according to the state of the art for tilting the incoming chain links, in which at least some partial areas of the pockets are parallel or perpendicular to the axis of rotation or wheel axis, corresponding to the invention of the chain wheel support surface is almost completely lie obliquely to the axis of rotation. Resulting from this having in cross section the form of the angle disclosure of each pocket chain wheel can be manufactured with low cost and adjusted in a relatively straightforward manner under different geometry and cross-section of the chain links, and simultaneously ensured that the transmission of forces in the circumferential direction was seen except for the sustained fashion areas of the side surfaces of both of the jumpers, the bounding box of each pocket. Accordingly, the upper, i.e. the outer shoulder of each chain link adjacent this side of the lateral section of the jumper that their plots of lateral surfaces forms a front and rear wall of the pocket, respectively, of another row of pockets, lying offset. Lots of jumpers, which according to the state of technology engages in the inner holes of the adjacent side to the jumper link in the chain, can essentially or completely excluded.

In a preferred embodiment, the bearing surface on the side plot jumper made in the form of a flat surface, passing to the area of the base of the pocket. This bearing surface and therefore the surface of the side portions of the jumper can either be done relatively simply, in particular, be produced in one work step, for example, to reservats. The area of the base of the pocket is thus preferably has the form of a transition angle of the side wall formed of jumpers pockets of one group, respectively lying opposite jumpers opposite wall. The plot can be fitted, in particular, on the move, preferably rounded longitudinal groove and the longitudinal groove forms a free surface for the areas surrounding the x shoulders (longitudinal side) of the chain links. Particularly advantageous if the navigation or longitudinal grooves of one group of pockets and transitions or longitudinal grooves of the other group pockets are offset to the Central plane of the chain wheel. Due to this option can advantageously be reduced in General, the required width of the chain wheel and thus also the complete weight of the respective sprocket wheels.

In a particularly preferred embodiment, the bearing surface on the side wall and the support surface on the opposite wall are inclined to the axis of rotation and simultaneously at right angles to each other. Pocket with standing at right angles to each other support surfaces for the chain links are not only particularly simple to manufacture, but at the same time guarantees a favorable bearing located in the pockets of the chain links. In the best case, appropriate, an inclined standing chain links arrive then at a 45 angle in the chain wheel or, respectively, out of the chain wheel, so that the successive chain links are strengthened also lying on the side and offset from each other in the circumferential direction of the pockets in their optimal 45 orientation on a support surface, and will be simultaneously subjected to a tangential efforts in the circumferential direction through sections of the side surface is her jumper. If this proves to be particularly advantageous if each link in the chain, passing in the pockets of the chain wheel, forms a bearing chain link that takes tangential traction, which must be transmitted from the drive mechanism chain wheel in swingaway chain. Thus a particular advantage, in particular, also in comparison with the classic design of the chain links with a horizontal bearing chain and vertical, not bearing chain that appears significantly more favorable distribution of forces on individual passing (obecause) chain links, minimizing the effect of the polygon, and while passing through the closed trajectory of much more minor difference of speeds based on the effect of the polygon than it happened with classic, well-known in the state of the art chain wheel or chain sprocket.

Simplified according to the invention the geometry of the cross-sections of the pockets with the passing obliquely to each other support surfaces on one side wall and the opposite wall has helped to make the chain wheel could be made or to be made preferably from a solid billet or casting with preferably preshaped pockets, and only the final form of Karmana is produced by milling and/or grinding, and the resulting surface then, if necessary, receive additional protection from wear by quenching, tempering or the like, the Simple geometry of the pockets, in particular, with standing at right angles to each other and inclined at an angle of 45 support surfaces of the pockets has helped to make the chain wheel is finally processed in the clip with the help of relatively simple working tools and pockets could get their desired geometry, including the right curves on the plots of the lateral surfaces of the jumpers to ensure a favorable set of chain link in the chain wheel and turning to reach more small loads lying in the pockets of the chain links. Thus, at the same time also weaken the vibrations that are transmitted from the chain wheel in swingaway chain and can lead to additional stress zinevych chains or drive units, in particular, when passing through the closed trajectory zinevych chains.

An expedient manner sprocket has two side surfaces, each side surface includes a number of ridges, corresponding to the number of pockets, and between the two bridges one side surface formed opposite wall. In a particularly preferred embodiment corresponding to the invention of the chain is the Olsen bearing surface opposite wall has a smaller radial height, than the bearing surface on the jumper. On the support surface opposite wall of the chain link built the outer side of the bend and shoulders respectively (longitudinal side) of the chain links, while a chain link its bottom surface is essentially flat adjacent to the supporting surface on the jumper, consequently, on the side wall of the pocket.

In particular, for the application corresponding to the invention of the chain wheels in the mining industry, as, for example, in the extraction of minerals (salt, potassium or the like) or extraction of coal, particularly advantageous if each opposite wall is provided with at least one opening displacement for coal, salt, rocks or mineral accumulations or the like According to a preferred variant implementation opening displacement can consist of a passage in the opposite wall, if, for example, chain wheel on both side surfaces of the ring has a closed edge or edge of the ledge. However, particularly advantageous, if the jumpers are formed on the dais in the form of a tooth on both side surfaces of sprockets and between the elevations provided by the depression, which at least partially form an opening displacement for coal fines, dust, salt or the like, the combination of elevations and depressions with openings in the opposite wall can create a TOC is s advantages. Instead of the openings in the opposite wall of the cavity could be formed between the elevations of the tooth form so that they are at least in the middle of the pockets before the Foundation of the pockets, so therefore, separate pockets made in the form of pockets deep molding and open in the area opposite wall to the side surface. The cross-section of these holes, forming holes of eviction can be carried out again almost V-shape, through deep valleys to reach the large holes of displacement between simultaneously coarsely executed elevations in the form of a tooth. For a significant improvement in displacement and, accordingly, removal of accumulations of coal dust or the like, which may be inclined, in particular, also to the formation of briquettes and worsen thus the nature of the input chain link into the pockets of the chain wheel, the side surfaces may be provided with a drainage bevels in aisles or deeply penetrating troughs. The passages in the side surfaces of the lower troughs can be composed mainly of longitudinal grooves. As performing with deeply penetrating cavities and execution with longitudinal grooves in the region of the opposite wall has the advantage that the admission of the chain link in the pocket of small rock fragments or the formed briquettes at entry-level price and could move into the pockets down and then through the holes of the displacement to Wiimotes out. According to a preferred variant of the run, each side surface, respectively, with 4 to 8 elevations and depressions, in particular, can be equipped with six elevations and six troughs, which are respectively at 60 from each other, so that the chain wheel has a total of twelve pockets, of which every six pockets form a series or group of pockets.

A preferred application area corresponding to the invention of the chain wheel with pockets that have standing obliquely to each other, the lateral support surface for the incoming angle of 45 chain, is used as a drive or guide chain wheels for chain-of-plane Assembly for the extraction of minerals or coal, or for scraper chain chain scraper conveyor for mining, minerals, coal mining or mining. When using a chain wheel with pockets for inclined passing the chain links of the load on the chain links when passing in the pockets of the chain wheel can be reduced due to the fact that all chain links, as bearing chain links carry generated by the drive mechanism tangential traction on swingaway chain. Thus, we obtain a much more favorable distribution of forces on the bearing chain and wear of the chain links etc the circulation around the chain wheel is reduced while at the same time reduced the oscillations, that are in circulation circuit. The chain scraper conveyors the following advantage is obtained in that the circuit in this inclined at 45 position can be extended through the partition grooves chain scraper conveyor or, respectively, can pass through sections of the gutters, and installation of the chain at an angle makes it possible for the scraper conveyor lower structural height as transporting branches, and branches of the reverse. As with link chain with an inclined passing the chain links of both chains are based on the basis of the transport branch, and branch-reverse, at the same time reduces the wear on the working base of the conveyor and respectively on the basis of the lower branch of the conveyor belt. Therefore, system engineering applications of chain wheels with pockets for inclined members of the chain wheel of the chain links can improve overall resource chain scraper conveyors and underground aggregates mining.

The following advantages and embodiments of the invention are obtained from the further description shown in the drawings of examples of execution corresponding to the invention of the chain wheels. In the drawings shown:

Figure 1 - schematic corresponding to the invention of the chain wheel according to the first exemplary embodiment in side view;

Figure 2 is a section view along II-II in figure 1;

Figure 3 is a section view along III-III in figure 1;

4 is a view along the arrow IV in figure 2;

5 is corresponding to the invention of the chain wheel on the side view according to the second exemplary embodiment;

6 is a section view along VI-VI of figure 5;

7 is a section view along the VII-VII of figure 5;

Fig is a top view of the pocket chain wheel according to the arrow VIII of figure 6;

Fig.9 - corresponding to the invention of the chain wheel according to the third exemplary embodiment in side view;

Figure 10 is a section view along X-X of figure 9;

11 is a section view along XI-XI of figure 9;

Fig - view along the arrow XII of figure 10 and

Fig - schematic, greatly simplified, of a chain scraper conveyor belt scraper conveyor with inclined lying chain links in the vertical section through the boom conveyor.

Figure 1 shows the chain wheel 10 to drive or direction (deviation) of the scraper chain chain scraper conveyor or plow chains extend through the circuits of the mining plough. Chain wheel 10 is made preferably of one-piece molded workpiece and the center seat 1 placement of the output shaft is not presented here drive and guide node axis D of rotation. Chain wheel 10 is equipped with two lying near each other in rows or groups of pockets 20 and 30, which are distributed on a circle with uniform angular intervals in the Lamy, and accordingly two pockets 20 of one row of pockets, and, respectively, two pockets 30 of the other row of pockets are offset relative to each other by 60. As the pockets 20 and the pockets 30 is designed so that the chain wheel 10 can take passing obliquely links link chain and turn from the input circuit to the output circuit essentially 180. To this end, the pockets 20 are offset relative to the pockets 30 not only in the direction of the circumference, but also across the axis of rotation, resulting in passing obliquely the chain links, as shown in figure 2 the dashed link 11 of the chain in the pocket 20, are respectively side fit in the pockets 20 and 30 respectively on the chain wheel 10, and when powered chain wheels can be subjected to force in the direction of the circumference. Chain links 11, which are preferably of circular oval links chain with a suitable cross-section of the wire, in particular a circular cross section wire, and alternately engages in the oval eyelet 12 of the next link in the chain, thus, during the rotation of the chain wheel 10 depending on the inclined position is invested either in the pocket 20, or in the pocket 30. Using a chain wheel 10 efforts in the direction of the circumference can be transported in karma what the fuck 20 and 30 links, both define the width of the chain wheel 10 side surfaces 13 and 14 respectively of the chain wheel 10 is made jumper 21 and 31 respectively, which one their portion of the side surface 22 and 32 respectively directed in the direction of rotation, respectively form the rear wall of the pocket 30 and 20 respectively, and oppositely lying in the direction of the circumference of the lateral surface 23 and 33 respectively form the front wall of the pocket 30 and 20 respectively. Therefore, in the direction of the circumference of the pockets 20 are limited to sections 32, 33 of the side surfaces of the crosspieces 31, and the pockets 30 parts 22, 23 of the side surfaces of the crosspieces 21. All jumpers 21 formed on the side surface 14 and all jumpers 31 on the side surface 13, which leads lying with offset rows of pockets. The contours of the sections 22, 23 and respectively 32, 33 of the side surfaces of the bridges 21 and 31 respectively adapted essentially to the geometry of the folds of the chain links 11 to achieve a planar fit and the best transmission tangent efforts in the chain link. At the same time each crosspiece 21 and 31 respectively forms a surface of its side section 24 and 34 respectively of the side wall of the pockets 30, 20 another row of pockets. The side sections 24, 34 jumpers 21, 31 between the respective sections of the side zip pocket wit the surfaces 22, 23 and respectively 32, 33 are made at the same time as passing obliquely to the axis D of rotation, essentially flat surfaces that are here under a constant angle of 45 to the base or, in other words, the bottom 25 of the pocket 20 and, accordingly, the bottom 35 of the pocket 30. Accordingly, on the other, opposite the crosspiece 21 and 31 respectively of the side surfaces 13 and 14 respectively each pocket 20 is limited to the opposite wall 26 and each pocket 30 to the opposite wall 36, and also these opposite walls 26 and 36 respectively are at an angle of 45 to the axis D of rotation and pass this angle of inclination to the base 25 of the pockets 20 and, accordingly, the base 35 of the pockets 30. The side wall 34 and opposite wall 26 of the pockets 20 are, therefore, at right angles to each other and contribute to the fact that the chain link 11 both shoulders adjoined to the side wall 34 and 24 respectively, formed respectively by a crosspiece 31 and 21 respectively, while it side surface of the shoulder adjacent to the opposite wall 26 and 36 respectively. The transition passing the inclined side wall 34 in the opposite wall 26 and respectively opposite wall 36 in the side wall 24 is in a transitional groove 37 and 27 respectively with a suitable radius of curvature, in order to achieve free over the spine in the area of the V-shaped base 25, 35 each pocket 20, 30.

Formed on the side surface 13 jumper 31 are respectively the area of the elevations 15 in the form of the tooth side surface 13, and jumpers 21 on the opposite side surface 14 of the chain wheel 10 formed respectively on the elevations 16 in the form of the tooth, between which is provided by the depression 17 on the side surface 13 and, accordingly, the depression 18 on the side surface 14. Directly opposite each elevation 15 in the form of a tooth on the lateral surface 13 and accordingly the elevation of 16 on the side surface 14 is hollow 18 and 17 respectively on opposite side surfaces 14 and 13 respectively. The chain wheel 10 from the radial edges of each of the cavities 17, 18 passes inclined opposite wall 26 and 36 respectively of each pocket 20 and 30 respectively. The angle-shaped passages 25 and 35 respectively pockets 20 and 30 are respectively offset from the vertical mid-plane M of the chain wheel 10, and the opposite wall 26 and 36 respectively the chain wheel 10 according to figure 1 takes place essentially only half the height of the opposite side wall 34 and 24 respectively. For all that, through depressions 18, 17, formed between the two ridges 15, 16 in the form of a tooth achieve as coal, grain of salt, fragments of rock on the odes or the like can be pushed into the side of the pocket through the top of the opposite side walls 26, if the chain link comes in a pocket 20 or 30 chain wheel 10. So, cavities 17, 18 forms a partial reduction of the diameter of the side surfaces 13, 14, and, consequently, also opening displacement for coal, etc.

Figure 4 shows a top view of the circumference of the chain wheel 10 with lying offset relative to each other pockets 30 and 20. The location of the chain links in the pockets 20 and 30 respectively denoted by the dash-dotted straight lines. In the top view clearly shows that the opposite wall 26 is relatively evenly enters formed by jumper 31 of the side wall 34 of the pocket 20 and which passes, for example, in the pocket 20 of the chain links can be supported on the side only in a narrow region, tapering to the base 25 pockets and forming the side wall 34 jumper 31, as contour plots 32 and 33 respectively of the side surfaces approximately V-shape narrows the jumper 31 to the base 25 of the pocket 20. Opposite wall 26 shown in figure 1-4 chain wheel, in contrast, offers approximately throughout the length of the pocket 20 support in this pocket 20 of the chain link.

Figure 5-8 shows the second example of execution of the relevant invention sprockets 110, and here the same cell battery (included) what you when the chain wheel according to Fig 1 to 4, provided increased by 100 reference symbols. Also sprocket 110 contains distributed over its circumference, lying next to each other and offset relative to each other pockets 120 and 130 respectively, which are formed for receiving and changing the direction of the chain links (not shown), which pass sprocket 110 in inclined positions at 45 to the axis D of rotation. As in the previous exemplary embodiment, in General, 12 pockets, namely six pockets 120 and six pockets 130 are located with distribution around the circumference and each pocket 130 is limited in the circumferential direction by sections 122 and 123 respectively of the side surfaces of the jumper 121, while the pockets 120 are limited in the circumferential direction by sections 132 and 133 respectively of the side surfaces of the jumper 131.

All jumpers 131 are located on the front, if you look at figure 5, the side surfaces 113, while jumpers 121 are located on the opposite, if you look at figure 5, the rear side surfaces 113, and each of the side surface 113 and 114 respectively has again six elevations 115 in the form of a tooth on the side surface 113, and the elevation of 116 on the side surface 114, which is formed jumper 121 and 131 respectively. Accordingly, the underlying directed to a pocket 120 and ACC is respectively 130 side sections 134 jumper 131 and 124 respectively jumpers 121 form a side wall of the pocket 120 and 130 respectively, which is inclined to the axis D of rotation and forms accordingly held inclined to the axis of rotation of the support surface to being in the pockets 120 or 130 of the chain links. On the contrary passing the inclined side wall 124 lies shorter opposing wall 136 and passing in front slanted side pockets 134 120 lies passing obliquely opposite wall 126. Opposite wall 126 and 136 respectively and the side wall 134 and 124 respectively lie at right angles to each other and are essentially as a plane in the longitudinal direction of the pockets 120 and 130 respectively in the direction of the circumference. Unlike the previous example, run the chain wheel 110 cavities 117 and 118 respectively pass between the two elevations 115 and 116 respectively in the form of the tooth to the base 125 and 135 respectively pockets 120 and 130 respectively. Therefore, when viewed in the direction of the circumference, each pocket 120 and 130 respectively in the middle of no opposite wall, and there, through the cavities 117 and 118 respectively deep molding creates an open edge of the cavity, which forms a particularly large hole displacement for coal fines, dust, clusters of rocks or the like, which could build up inside the pocket 120 and 130 respectively. pagina 117 and 118 respectively are made so as the pocket 120 from its base 125 through idler beveled edges 129 moves to the side surface 114 and respectively through idler beveled edges 139 moves to the side surface 113 of sprockets 110, so that the corresponding accumulations are excreted out of the pockets 120 and 130 respectively. Depression 117, 118 are here from the arcuate transitions into each other two elevations 115 and 116 respectively. Cavities 117 and 118 respectively deep molding share opposite wall 126, as particularly well seen on Fig into two partial square, between which is formed a hole displacement outlet with the beveled edge 129 and 139 respectively.

Also shown in Fig.9-12 sprocket 210 is preferably for use in the underground mining industry as a drive or guide (deflecting) chain wheels for scraper conveyor or chain drag-and both side surfaces 213 and 214 respectively provided with respectively six evenly spaced at 60 separately arranged around the circumference of the elevations 215 and 216 respectively in the form of a tooth, are respectively formed jumper 221 and 231 respectively, whose areas of the side surfaces 222, 223 limit pockets 230, and accordingly their plots side poverhnosti, 233 - pockets 220. In front of each jumper 231 (221)separating from each other two pockets 220 (230) of the row of pockets, is located opposite the wall 226 (236), and as opposite wall 226 (236), and a side section 234 (224) are at an angle of 45 to the axis D of rotation and at the same time are perpendicular to each other. Depression 217, 218 between the two elevations 215, 216 in the form of a tooth over again essentially half the height of the pockets 220 and 230 respectively, and alternately move elevations 215, 216 and depressions 218 and 217 respectively on each side surface 213, 214 corresponds essentially move the chain wheel figure 1-4. However, unlike the previous examples of how to perform each opposite wall 226 is supplied in this case oval and oriented in the direction of the circumference, closed side edges of the longitudinal slot 228, and each opposite wall 236 on the side surface 213 respectively longitudinal groove 238, and these longitudinal grooves 228, 238 form a hole displacement for clusters of rocks, coal or the like With the notch ring jumper 240, 250 longitudinal grooves 228, 238 penetrate to the corresponding height of the opposite wall 226 and 236 respectively to the base 225 and 235 respectively of each pocket. At the base of the longitudinal grooves 228, 238 are formed again idler bevel CROs is Ki 229, 239 with a bevel angle of about 10, to facilitate the displacement of coal or the like due to the presence of longitudinal grooves 228, 238, as particularly well seen on Fig, each link in the chain, passing the chain wheel 210 in an inclined position, only partially based his chain bends in the field opposite wall 236 as longitudinal grooves 228, 238 simultaneously form the free surface in the area opposite wall 226 and 236 respectively of each of the pocket 220, 230.

On Fig schematically and very simplistically shown in the vertical section half section 60 gutters detail is not presented scraper chain conveyor, in which the chain 5 of the actuator is rotated by means of chain wheels, as they are shown in figure 1-12. Each section 60 trough chain scraper conveyor contains known side profiles 61 for transporting branches or respectively upper branches 62 and the mirror opposite thereto located lateral profiles 63 to the lower branches and the branches 66-reverse, in which their ends are held scrapers 6 attached to a link chain 5. Link chain passes around as an endless chain belt between the main drive and auxiliary drive mechanism (not shown). As the chain links 11 of the scraper chain 5 are respectively the state with an inclination of 45 to the horizontal and verticals, the links 11 of the circuit based their respective lower shoulders on the base 65 of the conveyor and respectively on the base 66 of the lower branches in two zones, so that wear of the base 65 of the conveyor and the base 66 of the lower branches because internally the forces of friction less than with the known state of the art. At the same time on the basis inclined (oblique) location of the chain links 11 of the scraper conveyor 5 can be minimized construction height with the same force on the chains, as it became possible to lower the minimum structural height of each leg 62, 64 of the chain scraper conveyor 60. A further advantage when using the scraper conveyor 5 with oblique lying parts of 11 the chains of the chain scraper conveyor 60 is obtained due to the fact that each link 11 of the chain in the chain wheels 10, 110 and 210 respectively runs around as support the chain link and loaded tangent efforts, so called when the turnover on the chain wheel load on individual links of the chain are greatly reduced in comparison with a conventional holding circuit with vertical and horizontal chain links, in which only every second chain link may form the support link in the chain.

For professionals from the preceding description, are obtained numerous changes that D. who should fall into the protection scope of the dependent claims. In particular, the external geometry of the depressions and elevations in the form of a tooth can vary without having to leave the protection scope of the dependent claims. All drawings show the chain wheel with six elevations in the form of a tooth and, accordingly, the depressions on each side surface, therefore, in General, with twelve pockets. Depending on the used geometry circuits and application chain wheel could also be obtained more or less, in particular, from four to eight teeth on lateral surface, therefore, eight, ten, twelve, fourteen or sixteen pockets. The angle between the rest of the essentially flat side walls and opposite walls of each pocket with exactly 90 is preferred exemplary embodiment. Also there could, however, vary slightly inclined position of one or both surfaces. Finally, the invention, in particular, is not limited to the shaping and implementation sections of the side surfaces of lintels and accordingly elevations in the form of a tooth to limit individual pockets, and they can vary depending on the geometry of the individual chain links.

1. Sprocket for chain drives with the axis (D) of rotation and with two spaced around the circumference of the chain wheel by a number of other the other and offset relative to each other by groups of pockets (20, 30; 120, 130; 220, 230) for a chain, passing the chain wheel in an inclined position relative to the axis (D) of rotation, and each pocket (20, 30) is limited laterally by a lateral wall (24; 34) and the opposite wall (26; 36), and in the circumferential direction intersections (31; 21), which plots (32, 33; 22, 23) of the side surfaces of the profile forming the front and back pockets (20; 30) one group for transmission on passing in your pocket chain link, and which side plot (24; 34) form a side wall pockets (30; 20) of the other group, characterized in that the side wall (24; 34) and the opposite wall (26; 36) of the pocket (20; 30) is formed of chain links passing obliquely to the axis (D) of rotation of the support surface, which pass to the plot (25; 35) the Foundation of the pockets (20; 30), jumpers (21; 31) is formed on the made in the form of the tooth heights (15; 16 on both lateral surfaces (13; 14) chain wheel, between which are provided cavities (17, 18), which at least partially form an opening displacement for fine coal or the like

2. Chain wheel according to claim 1, characterized in that the bearing surface on the side section of the jumpers (21; 31) is made in the form of a flat surface, going up area (25; 35) the base of the pocket (20; 30).

3. Chain wheel according to claim 1, characterized in that the section (25; 35) the base of the pocket (20; 30) consists of having the form at the La transition of the side wall (34; 24) in the opposite wall (26; 36).

4. Chain wheel according to claim 1, characterized in that the section (25; 35) of the base is produced preferably with rounded longitudinal groove (27; 37).

5. Chain wheel according to claim 3 or 4, characterized in that the navigation or longitudinal grooves (27; 37) one group of pockets (20) and another group of pockets (30) are offset relative to the Central plane (M) chain wheel(10; 110; 210).

6. Chain wheel according to claim 1, characterized in that the bearing surface on the side wall (24; 34) and the bearing surface on the opposite wall (26; 36) are located at right angles to each other.

7. Chain wheel according to claim 1, characterized in that the supporting surfaces are tilted 45 to the axis (D) of rotation.

8. Chain wheel according to claim 1, characterized in that it is made from one solid piece with preferably verterbrae and/or finished by grinding pockets (20; 30).

9. Chain wheel according to claim 1, characterized in that it has two side surfaces(13, 14; 113, 114; 213, 214), each side surface provided with the appropriate number of pockets number of jumpers(21, 31; 121, 131; 221, 231), moreover, between the two bridges one side surface formed opposite wall.

10. Chain wheel according to claim 1, characterized in that the base surface of the opposite wall (26, 36) has a smaller height than the support is the surface on the bridge (21; 31).

11. Chain wheel according to claim 1, characterized in that each opposite wall is provided with a hole displacement for fine coal or the like

12. Chain wheel according to claim 11, characterized in that the opening displacement consists of a passage in the opposite wall.

13. Chain wheel according to claim 1, characterized in that the cavity (117, 118) are at least in the middle pockets (120, 130) to the base (125, 135) pockets.

14. Chain wheel according to claim 1, characterized in that the depression (217, 218) pass through a partial area of the height of the pockets, and between the perimeter jumper (240, 250) depressions (217, 218) and plot (225; 235) base pockets (220, 230) is formed through the passages (228, 238) for fine coal or the like

15. Chain wheel according to item 13 or 14, characterized in that the lateral surface in the region passes through or deep penetrating troughs equipped with drainage bevels(129, 229; 139, 239).

16. Chain wheel according to 14, characterized in that the through passages consist of longitudinal grooves (228, 238).

17. Chain wheel according to claim 1, wherein each side surface has six elevations and depressions, which respectively are separated from each other by 60.

18. Application of the chain wheel according to any one of claims 1 to 17 as a drive or guide sprocket wheels to plow chain of the mining plow or scraper chain scraper chain to the of nijera, in particular, for the extraction of minerals, coal mining or mining industry.

19. Chain scraper conveyor with the main drive and auxiliary drive, which contain, respectively, one fortified in the bearings for rotation of the chain wheel with pockets for chain links provided with scrapers link chain, characterized in that the pockets provide opportunity inclined passage of the chain links relative to the axis of rotation, and a link chain with an inclined standing chain links of turns between the two chain wheels, while the chain wheel made according to any one of claims 1 to 17.



 

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Chain gear // 2375618

FIELD: machine building.

SUBSTANCE: invention refers to general machine building and can be implemented in any of its branches where mechanic gears of rotary motion are used. The chain gear consists of two or more wheels-gears connected with chain (3). The gear corresponds to a unit wherein gear rim (K) consists of a set of separate sector parts connected with disk (4) of a gear with fit ring (6). Connections of gear rim (K) with disk (4) and fit ring (6) contain a system of slots and lugs facilitating adjustment of diametre of initial circumference of the gear and consequently its step bringing it to correspondence with the step of the chain by its wear. Adjustment is carried out with angular turn of the disk relative to the fit ring with tap wrench (8) with gear.

EFFECT: increased operation life of chain, reduced cost for spare chains for facilitation of required resource of chain gear.

6 dwg

FIELD: transport engineering.

SUBSTANCE: proposed motorcycles suspension system contains first sprocket including hub with cross slot on outer surface and ring engaging with hub and provided with surface for engaging with belt, and stop member engaging with hub to hold ring on hub. Ring is made with profile and projection on inner surface for relative engagement with slot. Sprocket is connected to wheel. Ring is made of polymeric material. Motorcycle suspension system contains also frame member, hinged lever connected to frame member in point of turning, said ring being connected by axle to hinged lever, and shock absorbing member arranged to connected hinged lever and frame, and second sprocket installed for engagement with first sprocket. Sprocket of motorcycle suspension system has hub, ring engaged with hub through adhesive material. Ring has profile on outer surface for engagement with belt and radially directed projection passing crosswisely on inner surface of ring. Inner diameter of ring is smaller than outer diameter of hub. Hub is provided with slot for engagement with projection. Ring is made of polyurethane.

EFFECT: prevention of rotation between hub and detachable working surface.

5 cl, 10 dwg

FIELD: mining industry.

SUBSTANCE: invention relates to chain wheel for underground mining, particularly, to chain scraper conveyor with chain drive. Proposed chain wheel with first rim consisting of first tooth elements uniformly spaced over perimeter of chain wheel body and at least one second rim axially displaced relative to first rim and consisting of other tooth elements uniformly distributed over perimeter. Sides of tooth elements pointed to each other are provided with cavities which serve as contact surfaces of lying links of chain. Contact surfaces in cavities of each tooth element consist of wear lining made of wear-resistant material.

EFFECT: increased service life of chain wheels.

26 cl, 10 dwg

Flexible sprocket // 2266450

FIELD: mechanical engineering.

SUBSTANCE: flexible sprocket comprises hub, rim, and flexible members that connects them and arranged over the periphery of the sprocket. The rim and hub have conical-cylindrical openings arranged concentrically over the periphery parallel to the axis of the sprocket. The conical parts of the openings face internal sides of the rim and the hub. The flexible members are made of flexible cylindrical rods and arranged in the conical-cylindrical openings of the hub and rim. The space between the hub and rim allows the flexible rods to be flexibly bent and the rim to be self-adjustable in the plane of the gearing.

EFFECT: prolonged durability.

1 dwg

FIELD: mechanical engineering.

SUBSTANCE: sprocket comprises asymmetrically shaped teeth. The working and back sides of each tooth of the sprocket has different evolvent shape.

EFFECT: enhanced durability.

2 dwg

The invention relates to mechanical engineering, in particular to a closed high-speed chain drive roller and gear chains

The invention relates to mechanical engineering and can be used in chain transmission construction, road, agricultural, etc

The invention relates to mechanical engineering and can be used in a variety of aggregates containing duhvalova and mnogogolovye chain transfer

FIELD: transport.

SUBSTANCE: invention relates to rotary device for chain drive or rotary device for extraction or transportation devices incorporating chain traction. Rotary device for chain and chain wheel incorporated therewith are proposed. Note here that lateral surfaces of bends in chain belt horizontal links are lower, in every case, than equatorial line, and that they represent concaved recess, while receiving horizontal recesses of chain wheel have their lateral surfaces of teeth made barrel-like protruded to mate concaved lateral surfaces of aforesaid bends.

EFFECT: reduced specific compression force between to parts.

22 cl, 10 dwg

FIELD: mining industry.

SUBSTANCE: invention relates to chain wheel for underground mining, particularly, to chain scraper conveyor with chain drive. Proposed chain wheel with first rim consisting of first tooth elements uniformly spaced over perimeter of chain wheel body and at least one second rim axially displaced relative to first rim and consisting of other tooth elements uniformly distributed over perimeter. Sides of tooth elements pointed to each other are provided with cavities which serve as contact surfaces of lying links of chain. Contact surfaces in cavities of each tooth element consist of wear lining made of wear-resistant material.

EFFECT: increased service life of chain wheels.

26 cl, 10 dwg

The invention relates to a drive chain scraper conveyor and tool for dismantling

The invention relates to a structural node to standardize and create a system for mounting chain conveyors, chain bilge conveyors and conveyor timing belt

The invention relates to a conveyor to transport and can be used in such industries and production, using conveyors with different traction and load-carrying bodies

FIELD: mining industry.

SUBSTANCE: invention relates to chain wheel for underground mining, particularly, to chain scraper conveyor with chain drive. Proposed chain wheel with first rim consisting of first tooth elements uniformly spaced over perimeter of chain wheel body and at least one second rim axially displaced relative to first rim and consisting of other tooth elements uniformly distributed over perimeter. Sides of tooth elements pointed to each other are provided with cavities which serve as contact surfaces of lying links of chain. Contact surfaces in cavities of each tooth element consist of wear lining made of wear-resistant material.

EFFECT: increased service life of chain wheels.

26 cl, 10 dwg

FIELD: transport.

SUBSTANCE: invention relates to rotary device for chain drive or rotary device for extraction or transportation devices incorporating chain traction. Rotary device for chain and chain wheel incorporated therewith are proposed. Note here that lateral surfaces of bends in chain belt horizontal links are lower, in every case, than equatorial line, and that they represent concaved recess, while receiving horizontal recesses of chain wheel have their lateral surfaces of teeth made barrel-like protruded to mate concaved lateral surfaces of aforesaid bends.

EFFECT: reduced specific compression force between to parts.

22 cl, 10 dwg

FIELD: transport.

SUBSTANCE: invention relates to chain wheel for chain drives with rotation axis D and two chain link boxes 20, 30 arranged along chain wheel edges nearby each other and sifted relative two each other that cross chain wheel in inclined position. Each box 20, 30 has lateral wall and opposite wall, and webs 31, 21 arranged along circumference. To simplify producing chain wheel for inclined chain links and improve force distribution, this invention proposes make box lateral and opposite walls form support surfaces inclined to rotation axis D and run to box base section.

EFFECT: simplified design, better distribution of forces at chain loading bearing links.

19 cl, 13 dwg

Apron conveyor // 2494030

FIELD: transport.

SUBSTANCE: conveyor comprises planar conveyor belt 1 with two or one draw chains 2 running around drive and tension sprockets 3, 4 and idle rolls 5 running in guides 6 secured at conveyor frame struts 7. Intermediate drive is composed of twin or single drive sprocket 8 articulated with sprockets 9 in diameter equal to that of the drive sprocket and arranged along conveyor lengthwise axis and sprockets articulated therewith with two or one draw chain of planar belt. Diameter of intermediate drive sprockets equals that of the head drive sprocket. Articulation between intermediate shaft sprockets is composed of equal-diameter gear wheels 12, 13 fitted on every shaft 10, 11 and idle gears 14 coupled therewith. Head and intermediate drive motor rotors run in synchronism.

EFFECT: higher reliability of conveyor and intermediate drive force.

2 cl, 3 dwg

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