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
  • F16G3/00—Belt fastenings, e.g. for conveyor belts
  • F16G3/08—Belt fastenings, e.g. for conveyor belts consisting of plates and screw-bolts or rivets
• • 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
  • F16G3/00—Belt fastenings, e.g. for conveyor belts
  • F16G3/10—Joining belts by sewing, sticking, vulcanising, or the like; Constructional adaptations of the belt ends for this purpose
• • 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
  • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
  • B65G15/30—Belts or like endless load-carriers
  • B65G15/32—Belts or like endless load-carriers made of rubber or plastics
  • B65G15/34—Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric

Definitions

• the invention relates to mechanical engineering, in particular to belt conveyors, which are used in various industries for transporting minerals, various bulk products or finished small-sized products and semi-finished products.
• the invention can be used to connect the ends of rubber-cord conveyor belts into a continuous "ring", to lengthen the belts or repair damaged areas.
• a significant disadvantage of such connectors is their high rigidity.
• Belt end connectors are not flexible, so the connectors remain straight when passing through curved surfaces of rollers and conveyor drums. This creates additional stresses in the belt, leading to premature wear and tearing of the belt in places stresses.
• a significant drawback of the connectors is that both plates protrude both above the upper and lower surfaces of the tape. At the same time, the lower plates of the connectors during operation damage the surfaces of the rollers and conveyor drums, disable them and, thus, reduce their service life. And the scrapers that clean the upper surface of the belt cling to the upper plates and create additional stresses in the belt, leading to wear and tear of the belt in places of stress.
• the spikes on the surfaces of the plates adjacent to the tape damage it and contribute to the acceleration of the tape failure.
• the tightness of the docking point is not ensured, which leads to spillage of the transported product.
• the presence of only one fastener at each end of the connector does not allow such connectors to transmit high traction by the tape.
• a significant disadvantage of the analogue is the high complexity of installing connectors, caused by the need for manual marking, or using a template for their mutual placement at a set distance from each other across the entire width of the tape to ensure uniform load on the ends of the tape and on the connectors.
• a mechanical method of connecting the ends of rubber-fabric tapes is also used using plates installed from below and from above the ends of the tape, connected by bolts with nuts.
• the joint conveyor belts consists of two joined ends of the belt containing the cord, as well as the top and bottom covers.
• the joint contains rubber-fabric pads installed above and below on the cord of the ends of the tape released for them from the lining.
• the overlays completely cover the joint.
• grooves are made in which fasteners are placed flush with the surfaces of the tape, which are used as U-shaped brackets, self-tapping screws or rivets.
• the joint (the well-known utility model RF No. 41006) is not without drawbacks, which include: the need to install a large number of fasteners to ensure uniform distribution of the breaking force over the body of the lining and cord of both ends of the tape. This leads to an increase in the time spent on their installation, and also increases the risk of destruction of the joined ends of the tape due to the large number of fasteners that require holes to be made on each side for their installation. joints in the overlays and in the cord of both ends of the tape, weakening both the overlays and the cord. Also, a disadvantage of the well-known utility model RF No.
• 41006 is the possibility of tearing up the upper edges of the ends of the upper plates and the upper plate at the points of their contact with each other by scrapers that clean the upper surface of the tape. This creates additional stresses in the linings and overlays, leading to their wear and possible rupture at the points of occurrence of additional stresses.
• the low amount of traction force that such linings can transmit including due to the installation of a large number of fasteners in them, which weaken the linings and the tape cord.
• the claimed invention uses the following features of the well-known utility model "Joint of conveyor belts" according to the patent of the Russian Federation No. 41006: a mechanical method of connecting the ends of rubber-fabric belts is also used using overlays installed from below and from above on the cord of the ends of the belt released for them from the lining and completely overlapping the joint. Fasteners connecting them are also placed flush with the surfaces of the linings.
• the technical task set before the creation of the claimed invention was to expand the arsenal of highly efficient designs for connecting the ends of rubber-fabric conveyor belts, and the technical result achieved using the claimed invention was to eliminate the above disadvantages.
• the specified technical problem is solved and the corresponding technical result is achieved due to the fact that the claimed invention is a device for connecting the ends of a conveyor belt, which consists of two abutting ends of the belt containing a cord, upper and lower facings, as well as overlapping the joint and interconnected by fasteners, the upper and bottom pads. These overlays are installed from above and below on the sections of the cord of the tape ends freed for them from the overlays.
• each of the overlays is made with a thickness equal to the thickness of the corresponding lining.
• the ends of the tape are joined together at an angle of approximately 55 to 90 degrees to the longitudinal axis of the tape.
• a feature of the device is that in each of the linings there is a perforated plate made of thin spring steel, made in the form of strips with rounded ends placed at a set distance next to each other along the longitudinal axis of the tape, connected by jumpers.
• adjacent strips of perforated plates can be interconnected by two transverse jumpers placed symmetrically with respect to the junction of the ends of the tape.
• adjacent strips can be interconnected by one transverse jumper, overlapping the junction of the ends of the tape.
• a feature of the claimed invention is that on the side of the perforated plates of each of the linings directed away from the cord, at least one layer of rubberized cord coating is laid, and on the side of the perforated plates of each of the linings, directed towards the cord of the tape, a layer of rubberized cord coating is laid. fabric cord.
• the outer layers of each overlay are made of materials similar to those of the tape overlays. At the same time, each of the overlays is combined by vulcanization into a single whole, including a perforated plate together with the corresponding coatings on both sides of it.
• the upper edges of the ends of the upper lining and the upper edges of the ends of the upper lining of the tape in contact with them are made with bevels.
• holes are made in both linings and the cord of the tape, coaxial with the holes made in the strips, and the fasteners themselves are mounted flush with the outer surfaces of the upper and lower linings or recessed into them. Screws or bolts with nuts are used as fasteners.
• at least one row of fasteners can be placed at each end of the straps, passing through the holes in the cord and through the holes at the ends of each of the longitudinal strips, as well as through the holes at the overlap of the strips and the corresponding transverse jumpers at the junction of the ends of the tape to prevent the loose product transported by the belt from getting into the joint from the sides of the belt.
• a feature of the claimed invention is also that the connection of the linings with each other is made detachable to ensure the possibility of reusing the linings and fasteners in case of replacing the tape or replacing only one of the linings in case of damage.
• Fig.1 on an enlarged scale, a side view of the connection of the ends 1 and 2 of the conveyor belt with the top 3 and bottom 4 overlays overlapping the joint of the ends of the tape and laid on the sections of the ends 5 and 6 of the cord ends of the tape freed for their placement from the overlays.
• the pads are interconnected by fasteners 7.
• both pads are installed perpendicular to the longitudinal axis of the tape at an angle of approximately 90 degrees, as shown in Fig. 2, or obliquely to the longitudinal axis of the belt at an angle of up to 55 degrees, as shown in FIG. 3.
• each of the plates 3 and 4 there is a perforated plate made of thin spring steel, made in the form of strips with rounded ends located at a set distance next to each other and interconnected by jumpers.
• FIG. 4 shows top views of the plates intended to be placed in pads mounted perpendicular to the longitudinal axis of the tape.
• Fig. 7 shows a top view of a plate designed to be placed in overlays installed obliquely to the longitudinal axis of the tape.
• the number and location of jumpers may vary.
• FIG. 4 shows a top view of a perforated plate consisting of longitudinal strips 8, while adjacent strips are interconnected by two transverse jumpers 9, placed symmetrically relative to the junction of the ends of the tape. Holes 10 for fasteners are made at the ends of strips 8.
• FIG. 5 shows, as an alternative, that adjacent strips 8 of a perforated plate can be connected to each other by a single transverse web 11 spanning the junction of the ends of the strip.
• holes 12 can be made in the middle of the strips 8 in addition to the holes 10 made at the ends of the strips 8.
• FIG 6 shows, as an option, that in a perforated plate, adjacent strips 8 are interconnected by one transverse jumper 11 overlapping the joint of the ends of the tape, as well as two transverse jumpers 9, placed symmetrically relative to the joint of the ends of the tape.
• FIG. 7 shows a top view of a plate designed to be placed in overlays installed obliquely to the longitudinal axis of the tape.
• adjacent plates 8 are interconnected by two transverse jumpers 9, placed symmetrically with respect to the junction of the ends of the tape.
• the holes 10 for fasteners are made at the ends of the strips 8.
• FIG. 8 shows a top view of the connection of the ends 1 and 2 of the tape perpendicular to the longitudinal axis of the tape with the top plate 3 and fasteners 7 installed at the ends of the plate 3, as well as fasteners 13 installed in the plate 3 at the junction of the ends of the tape.
• FIG. 9 shows an enlarged longitudinal section through the connection of the ends of the conveyor belt.
• the tape is an interconnected top and bottom facing with a cord placed between them, united by vulcanization into a single whole.
• Each of the ends of the tape consists of sections 14 and 15 of the upper lining, sections 21 and 22 of the lower lining, as well as sections of the ends 5 and 6 of the tape cord that are joined together, freed from both linings to place the top 3 and bottom 4 overlays on them.
• the thickness of the top lining is made equal to the thickness of the top lining, and the thickness of the bottom lining is made equal to the thickness of the bottom lining.
• the drawing does not show that, in order to avoid scuffing by scrapers cleaning the upper surface of the tape, the upper edges of the ends of the upper linings and upper edges of the ends of the upper lining in the places of their contact with each other, the upper edges of the ends of the upper lining and the upper edges of the ends of the upper lining of the tape in contact with them are made with bevels.
• a perforated plate 19 made of spring steel.
• each of the linings are combined by vulcanization into a single whole, including a perforated plate 19 in it.
• Both linings 3 and 4 are connected to the ends 5 and 6 of the tape cord and to each other by screws 18 with nuts 25 flush with the outer surfaces of the upper and lower linings . Also, the screw heads and their nuts can be recessed into the lining. The protruding ends of the screws 18 are removed.
• ends 1 and 2 of the tape as follows. Cut off both ends 1 and 2 of the tape under the template for the identity of the joined surfaces. Then parts of sections 14 and 15 of the upper and 21 and 22 of the lower linings of the tape are removed parallel to the cut to place the linings on the sections of the ends 5 and 6 freed from the linings. cord ends of the tape. Then overlays 3 and 4 are placed at the top and bottom on the sections of the ends 5 and 6 of the cord ends of the tape freed from the overlays. After that, holes are made in the sections of the ends 5 and 6 of the cord ends of the tape, coaxial with the holes, which are previously made in both linings. And the holes 10 in the overlays are made coaxial with the holes 10 in the perforated plates 19.
• the overlays 3 and 4 are connected to the ends 5 and 6 of the cord ends of the tape and to each other with fasteners 7, which are flush with both surfaces of the tape overlays or recessed into them.
• screws 18 with nuts 25 are used as fasteners, as shown in Fig.9, or bolts with corresponding nuts. The ends of the fasteners protruding beyond the nuts are removed.
• the technical result achieved by the claimed invention includes: ensuring the elasticity of the connection of the ends of the tape; reducing the time spent on the installation of overlays; exclusion of spillage of the transported product; prevention of scuffing by scrapers cleaning the upper surface of the tape of the upper edges of the ends of the ends of the upper lining and the upper lining in the places of their contact with each other; as well as an increase in the tractive forces transmitted by the belt and, in addition, an extension of the service life of the belt.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Belt Conveyors (AREA)
• Structure Of Belt Conveyors (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=77349326

Family Applications (1)

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Citations (6)

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• 2021
  • 2021-01-15 RU RU2021100859A patent/RU2753055C1/ru active
  • 2021-07-20 DE DE112021006818.0T patent/DE112021006818T5/de active Pending
  • 2021-07-20 CN CN202180060208.0A patent/CN116249846A/zh active Pending
  • 2021-07-20 WO PCT/RU2021/000307 patent/WO2022154689A1/ru active Application Filing

Patent Citations (6)

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