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NZ781633B2 - Spiral conveyor system - Google Patents
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NZ781633B2 - Spiral conveyor system - Google Patents

Spiral conveyor system Download PDF

Info

Publication number
NZ781633B2
NZ781633B2 NZ781633A NZ78163316A NZ781633B2 NZ 781633 B2 NZ781633 B2 NZ 781633B2 NZ 781633 A NZ781633 A NZ 781633A NZ 78163316 A NZ78163316 A NZ 78163316A NZ 781633 B2 NZ781633 B2 NZ 781633B2
Authority
NZ
New Zealand
Prior art keywords
drum
rib
conveyor system
spiral conveyor
belt
Prior art date
Application number
NZ781633A
Other versions
NZ781633A (en
Inventor
Bryan Hobbs
Darroll Joseph Neely
Original Assignee
Ashworth Bros Inc
Filing date
Publication date
Priority claimed from US15/216,210 external-priority patent/US9884723B2/en
Application filed by Ashworth Bros Inc filed Critical Ashworth Bros Inc
Publication of NZ781633A publication Critical patent/NZ781633A/en
Publication of NZ781633B2 publication Critical patent/NZ781633B2/en

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
    • B65G17/06—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
    • B65G17/061—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the load carrying surface being formed by profiles, rods, bars, rollers or the like attached to a single traction element
    • 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
    • B65G17/06—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
    • B65G17/065—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the load carrying surface being formed by plates or platforms attached to a single traction element
    • B65G17/066—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the load carrying surface being formed by plates or platforms attached to a single traction element specially adapted to follow a curved path
    • 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
    • B65G17/06—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
    • B65G17/08—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element
    • B65G17/086—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 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element specially adapted to follow a curved path
    • 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
    • B65G17/385—Chains or like traction elements; Connections between traction elements and load-carriers adapted to follow three-dimensionally curved paths
    • 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
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/16—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths
    • B65G21/18—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths in three-dimensionally curved paths
    • 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
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/24—Helical or spiral conveying path
    • 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
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/02—Belt- or chain-engaging elements
    • B65G23/04—Drums, rollers, or wheels
    • B65G23/06—Drums, rollers, or wheels with projections engaging abutments on belts or chains, e.g. sprocket wheels
    • 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
    • B65G2812/00—Indexing codes relating to the kind or type of conveyors
    • B65G2812/02—Belt or chain conveyors
    • B65G2812/02267—Conveyors having endless traction elements
    • B65G2812/02415—Conveyors having endless traction elements with load-carrying surfaces supported by traction means
    • B65G2812/02425—Continuous or uninterrupted load-carrying surfaces

Abstract

spiral conveyor system comprising: a drum associated with a motor, wherein the drum extends from a drum bottom to a drum top; a conveyor belt traveling helically about the drum from an entrance end of the drum to an exit end of the drum; a rib associated with the drum, wherein the rib extends radially from a surface of the drum; wherein the rib includes a first surface forming a drive face; wherein the rib includes a second surface defining a height of the rib above the surface of the drum from which the rib extends; wherein the conveyor belt includes at least one belt surface configured to engage the first surface forming the drive face; wherein the length of the rib extends along the length of the drum from a first end of the rib to a terminus of the rib proximate the entrance end of the drum; and wherein the drum has a smooth ribless portion proximate the entrance end of the drum; and wherein a portion of the belt in contact with the smooth ribless portion has a first radius, and wherein a portion of the belt engaged with the driving surface of the rib has a second radius.

Claims (26)

CLAIMS :
1. A spiral conveyor system comprising: a drum associated with a motor, wherein the drum extends from a drum bottom to a drum top; a conveyor belt traveling helically about the drum from an entrance end of the drum to an exit end of the drum; a rib associated with the drum, wherein the rib extends radially from a surface of the drum; wherein the rib includes a first surface forming a drive face; wherein the rib includes a second surface defining a height of the rib above the surface of the drum from which the rib extends; wherein the conveyor belt includes at least one belt surface configured to engage the first surface forming the drive face; wherein the length of the rib extends along the length of the drum from a first end of the rib to a terminus of the rib proximate the entrance end of the drum; and wherein the drum has a smooth ribless portion proximate the entrance end of the drum; and wherein a portion of the belt in contact with the smooth ribless portion has a first radius, and wherein a portion of the belt engaged with the driving surface of the rib immediately adjacent the smooth ribless portion has a second radius.
2. The spiral conveyor system of claim 1, wherein the terminus of the rib is separated from the entrance end of the drum by a distance such that the smooth ribless portion is disposed between the terminus of the rib and the entrance end of the drum.
3. The spiral conveyor system of claim 2, wherein the distance by which the terminus of the rib is separated from the entrance end of the drum is less than 25 percent of the length of the distance between the entrance end of the drum and the exit end of the drum.
4. The spiral conveyor system of claim 1, wherein an angled transition portion connects the smooth ribless portion of the drum with the surface of the drum from which the rib extends.
5. The spiral conveyor system of claim 1, wherein the height of the rib above of the surface of the drum varies along a length of the rib; wherein the rib has a first height at the terminus; wherein the first height is the maximum height of the rib along the length of the rib; and wherein at least a portion of the rib has a tapered height.
6. The spiral conveyor system of claim 1, wherein a radius of the drum defined by the second surface of the rib is greatest at the terminus of the rib.
7. The spiral conveyor system of claim 1, wherein the smooth ribless portion of the drum defines a radius of the drum that is greater than a radius defined by the second surface of the rib at the terminus end of the rib.
8. The spiral conveyor system of claim 1, wherein the smooth ribless portion of the drum defines a radius of the drum that is less than a radius defined by the second surface of the rib at the terminus end of the rib.
9. The spiral conveyor system of claim 1, wherein the rib and the smooth ribless portion of the drum are configured such that, when entering the spiral conveyor system, the conveyor belt rides in contact with the ribless portion of the drum and moves radially with respect to the drum in order to engage the rib.
10. The spiral conveyor system of claim 9, wherein the conveyor belt moves radially outward to engage the rib.
11. The spiral conveyor system of claim 9, wherein the conveyor belt moves radially inward to engage the rib.
12. The spiral conveyor system of claim 1, wherein the first end of the rib is spaced from the exit end of the drum such that the drum includes a ribless portion at the exit end of the drum.
13. The spiral conveyor system of claim 1, wherein the drum includes a plurality of drive elements defined by a plurality of cage bars.
14. The spiral conveyor system of claim 13, wherein the system includes a plurality of cage bar caps configured to cover the cage bars.
15. The spiral conveyor system of claim 14, wherein the plurality of cage bar caps includes at least one cage bar cap including the rib and the ribless portion; wherein the rib and the ribless portion are integrally formed.
16. The spiral conveyor system of claim 14, wherein an entrance end of at least one cage bar cap of the plurality of cage bar caps is spaced from the entrance end of the drum such that the ribless portion is provided between the entrance end of the drum and the entrance end of the at least one cage bar cap.
17. The spiral conveyor system of claim 14, wherein the system includes a cage bar cap including the rib; and wherein the ribless portion of the drum is a separate component attached to, and overlapping a portion of, the cage bar cap.
18. The spiral conveyor system of claim 17, wherein the rib includes a notch proximate the entrance end of the drum; and wherein the separate component is disposed in the notch in the rib.
19. The spiral conveyor system of claim 1, wherein the conveyor belt includes a first belt surface configured to engage the smooth ribless portion of the drum; wherein the conveyor belt includes a second belt surface configured to engage the belt contacting surface of the rib.
20. The spiral conveyor system of claim 19, wherein the smooth ribless portion of the drum is disposed at a first radial distance from a center of the drum; wherein the belt contacting surface of the rib proximate the smooth ribless portion of the drum is disposed at a second radial distance from the center of the drum.
21. The spiral conveyor system of claim 19, wherein the conveyor belt maintains the same radial distance from a center of the drum when engaging the
22. The spiral conveyor system of claim 1, wherein the height of the ribless portion is less than the height of the rib at the terminus of the rib.
23. The spiral conveyor system of claim 1, wherein the ribless portion comprises a discontinuity in the rib.
24. The spiral conveyor system of claim 1, wherein the ribless portion is a separate component from the rib.
25. The spiral conveyor system of claim 19, wherein the rib has a notch proximate the entrance end and a separate component is disposed in the notch.
26. The spiral conveyor system of claim 19, wherein an end surface of the rib is chamfered.
NZ781633A 2016-07-22 Spiral conveyor system NZ781633B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562196582P 2015-07-24 2015-07-24
US15/216,210 US9884723B2 (en) 2015-07-24 2016-07-21 Spiral conveyor system
NZ751411A NZ751411B2 (en) 2015-07-24 2016-07-22 Spiral conveyor system

Publications (2)

Publication Number Publication Date
NZ781633A NZ781633A (en) 2024-07-26
NZ781633B2 true NZ781633B2 (en) 2024-10-30

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