CA2552065A1 - Wear pad endless belt conveyor slide - Google Patents
Wear pad endless belt conveyor slide Download PDFInfo
- Publication number
- CA2552065A1 CA2552065A1 CA 2552065 CA2552065A CA2552065A1 CA 2552065 A1 CA2552065 A1 CA 2552065A1 CA 2552065 CA2552065 CA 2552065 CA 2552065 A CA2552065 A CA 2552065A CA 2552065 A1 CA2552065 A1 CA 2552065A1
- Authority
- CA
- Canada
- Prior art keywords
- wear pad
- belt
- top surface
- pad
- grooves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- 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
- B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
- B65G15/62—Guides for sliding belts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Belt Conveyors (AREA)
Abstract
A wear pad for use on a slide of an endless track conveyor belt is mounted on a base extending transversely beneath the belt for supporting the latter. The top surface of the wear pad includes a plurality of transversely extending grooves or channels in the top surface thereof for discharging liquid failing onto the wear pad from the belt whereby drag on the belt by the liquid is substantially reduced.
Description
WEAR PAD FOR ENDLESS BELT CONVEYOR SLIDE
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
This invention relates to a wear pad for use on a slide of an endless belt conveyor.
DISCUSSION OF THE PRIOR ART
Slides, which have been referred to as idlers have been used for some time to support conveyor belts. For example, United States Patent No.
6,854,593 issued to Boudreau et al on February 15, 2005, discloses a slide referred to therein as a pad-type idler, for slidably supporting a continuous conveyor belt. The pad-type idlers are supported on a metal support above a base. When conveying a liquid-containing substance, e.g. in the food processing industry, liquid falls onto the slides where it accumulates. The presence of a liquid between the belt and the slides results in drag (skin friction drag) between the belt and the slides which causes the belt to slow down or stop.
GENERAL DESCRIPTION OF THE INVENTION
The object of the present invention is to provide a solution to the above identified problem in the form of a relatively simple conveyor slide wear pad, which reduces or eliminates the accumulation of liquid on the slide, and consequently drag between the belt and the slide.
Accordinoly, the invention relates to a wear pad for use on a slide of an endless track conveyor belt comprising an elongated body having a flat top surface for slidably supporting a conveyor belt during travel of the belt over the I ,... ~
, . . ..,.w., 1 ..,,.. . I...:..i,.m,..l top surface between leading and trailing edges of the top surface; and a plurality of grooves in said top surface extending between the leading and trailing edges of the body for discharging liquid falling onto the top surface, whereby drag between the wear pad and the belt is reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described below in greater detail with reference to the accompanying drawings, wherein:
Figure 1 is a schemat'ic side view of an endless belt conveyor of the type which can employ a wear pad in accordance with the invention;
Figure 2 is a front view of a slide assembly incorporating a wear pad in accordance with the invention;
Figure 3 is an end view of the wear pad of Fig. 2 mounted on a crossbar of the slide assembly of Fig. 2;
Figure 4 is a front view of the wear pad and crossbar of Fig. 3;
Figure 5 is a top view of the wear pad of Figs. 3 and 4; and Figure 6 is a cross section taken generally along line 6-6 of Fig. 5.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Fig. 1, the wear pad of the present invention is intended for use in a conveyor assembly of the type including an inclined endless belt for receiving material to be conveyed from a chute 2 located above the belt. The belt 1 passes around a tail pulley 3 and a driven head pulley 4. The pulleys 3 and 4 include axles 6 and 7 mounted in pillow block bearings 8 and 9, respectively. The bearings 8 and 9 are mounted on the ends of a frame , . . . , x -1 ...nx..1 x I...d. r,. r ,1. .
indicated generally at 10, which includes a plurality of legs 12 and sides 13 (one shown) supported by the legs.
During travel over the top of the pulleys 3 and 4, the belt 1 is supported by transition slides 14 and troughing slides 15. When passing beneath the pulleys 3 and 4 the belt is supported by return slides 17. Each of the transition and troughing slides 14 and 15 includes a frame defined by a tubular base 18 with plates 19 on the ends thereof for mounting the assembly on the main frame 10 of the conveyor. The top ends of vertical center posts 21 extending upwardly from the middle of the base 18 are interconnected by a crossbar 22.
A wear pad 24 in accordance with the present invention is mounted on the crossbar 22. Inclined wear pads 25 are mounted on arms 26 connected to and extending outwardly and upwardly from the ends of the crossbar 22. Inclined side posts 28 extend between the base 18 and the arms 26 for supporting the latter. The basic difference between the transition and troughing slide assemblies 14 and 15 is the angle of the inclined wear pads 25 with respect to the horizontal. The troughing wear pads and the supporting arms 26 have a greater inclination for forming a deep material conveying trough. The wear pads 24 and 25, which are formed of a Teflon (trade-mark for polytetrafluoroethylene) composite, are similar to the pads disclosed by US Patent No. 6,854,592, issued February 15, 2005.
The pad 24 can optionally include cylindrical or frusto-conical wear indicators of the types described in applicant's Canadian Patent Application . .. ... ............ k ,..xn.r.. . .rlNl.r-In.m.. I-r 2,327,646 and United States Patent No. 6,854,593, respectively and which are incorporated herein by reference.
Referring to Figs. 2 to 6, the wear pad 24 in accordance with the present invention is basically an elongated rectangular parallelepipedic body with a flat, rectangular bottom surface 29 and a flat rectangular top surface 30 over which the belt 1 slides. The top of the front and rear ends 31 (the leading and trailing ends in the direction of belt travel) of the pad 24 are beveled. Holes 32 in the pad 24 receive bolts 33 for mounting the pad on the crossbar 22. The pad is spaced apart from the crossbar 22 by a pair of spacers 35. The bolts 33 extend through the spacers 35 and the crossbar 22. Nuts 36 are threaded onto the bottom ends of the bolts 33 beneath the crossbar 22.
As mentioned above, when conveying liquid-containing material, e.g. in the food processing industry, liquid tends to accumulate on the wear pads 24.
The liquid literally sucks the belt 1 against the pads 24 which can slow down or stop the belt. Drag on the belt by the liquid is reduced by providing a plurality of grooves or channels 38 extending between the leading and trailing edges (in the direction of belt travel) in the top of each pad 24. Liquid landing on the pads 24 is discharged via the grooves 38. While the dimensions of the pad 24 and the grooves 38 are not critical, in a thirty inch long pad, three 0.25 by 0.25 inch grooves 38 spaced slightly over an inch apart in the center of the pad are effective. Of course, additional grooves with different dimensions can be used in the top of the pad 24.
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
This invention relates to a wear pad for use on a slide of an endless belt conveyor.
DISCUSSION OF THE PRIOR ART
Slides, which have been referred to as idlers have been used for some time to support conveyor belts. For example, United States Patent No.
6,854,593 issued to Boudreau et al on February 15, 2005, discloses a slide referred to therein as a pad-type idler, for slidably supporting a continuous conveyor belt. The pad-type idlers are supported on a metal support above a base. When conveying a liquid-containing substance, e.g. in the food processing industry, liquid falls onto the slides where it accumulates. The presence of a liquid between the belt and the slides results in drag (skin friction drag) between the belt and the slides which causes the belt to slow down or stop.
GENERAL DESCRIPTION OF THE INVENTION
The object of the present invention is to provide a solution to the above identified problem in the form of a relatively simple conveyor slide wear pad, which reduces or eliminates the accumulation of liquid on the slide, and consequently drag between the belt and the slide.
Accordinoly, the invention relates to a wear pad for use on a slide of an endless track conveyor belt comprising an elongated body having a flat top surface for slidably supporting a conveyor belt during travel of the belt over the I ,... ~
, . . ..,.w., 1 ..,,.. . I...:..i,.m,..l top surface between leading and trailing edges of the top surface; and a plurality of grooves in said top surface extending between the leading and trailing edges of the body for discharging liquid falling onto the top surface, whereby drag between the wear pad and the belt is reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described below in greater detail with reference to the accompanying drawings, wherein:
Figure 1 is a schemat'ic side view of an endless belt conveyor of the type which can employ a wear pad in accordance with the invention;
Figure 2 is a front view of a slide assembly incorporating a wear pad in accordance with the invention;
Figure 3 is an end view of the wear pad of Fig. 2 mounted on a crossbar of the slide assembly of Fig. 2;
Figure 4 is a front view of the wear pad and crossbar of Fig. 3;
Figure 5 is a top view of the wear pad of Figs. 3 and 4; and Figure 6 is a cross section taken generally along line 6-6 of Fig. 5.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Fig. 1, the wear pad of the present invention is intended for use in a conveyor assembly of the type including an inclined endless belt for receiving material to be conveyed from a chute 2 located above the belt. The belt 1 passes around a tail pulley 3 and a driven head pulley 4. The pulleys 3 and 4 include axles 6 and 7 mounted in pillow block bearings 8 and 9, respectively. The bearings 8 and 9 are mounted on the ends of a frame , . . . , x -1 ...nx..1 x I...d. r,. r ,1. .
indicated generally at 10, which includes a plurality of legs 12 and sides 13 (one shown) supported by the legs.
During travel over the top of the pulleys 3 and 4, the belt 1 is supported by transition slides 14 and troughing slides 15. When passing beneath the pulleys 3 and 4 the belt is supported by return slides 17. Each of the transition and troughing slides 14 and 15 includes a frame defined by a tubular base 18 with plates 19 on the ends thereof for mounting the assembly on the main frame 10 of the conveyor. The top ends of vertical center posts 21 extending upwardly from the middle of the base 18 are interconnected by a crossbar 22.
A wear pad 24 in accordance with the present invention is mounted on the crossbar 22. Inclined wear pads 25 are mounted on arms 26 connected to and extending outwardly and upwardly from the ends of the crossbar 22. Inclined side posts 28 extend between the base 18 and the arms 26 for supporting the latter. The basic difference between the transition and troughing slide assemblies 14 and 15 is the angle of the inclined wear pads 25 with respect to the horizontal. The troughing wear pads and the supporting arms 26 have a greater inclination for forming a deep material conveying trough. The wear pads 24 and 25, which are formed of a Teflon (trade-mark for polytetrafluoroethylene) composite, are similar to the pads disclosed by US Patent No. 6,854,592, issued February 15, 2005.
The pad 24 can optionally include cylindrical or frusto-conical wear indicators of the types described in applicant's Canadian Patent Application . .. ... ............ k ,..xn.r.. . .rlNl.r-In.m.. I-r 2,327,646 and United States Patent No. 6,854,593, respectively and which are incorporated herein by reference.
Referring to Figs. 2 to 6, the wear pad 24 in accordance with the present invention is basically an elongated rectangular parallelepipedic body with a flat, rectangular bottom surface 29 and a flat rectangular top surface 30 over which the belt 1 slides. The top of the front and rear ends 31 (the leading and trailing ends in the direction of belt travel) of the pad 24 are beveled. Holes 32 in the pad 24 receive bolts 33 for mounting the pad on the crossbar 22. The pad is spaced apart from the crossbar 22 by a pair of spacers 35. The bolts 33 extend through the spacers 35 and the crossbar 22. Nuts 36 are threaded onto the bottom ends of the bolts 33 beneath the crossbar 22.
As mentioned above, when conveying liquid-containing material, e.g. in the food processing industry, liquid tends to accumulate on the wear pads 24.
The liquid literally sucks the belt 1 against the pads 24 which can slow down or stop the belt. Drag on the belt by the liquid is reduced by providing a plurality of grooves or channels 38 extending between the leading and trailing edges (in the direction of belt travel) in the top of each pad 24. Liquid landing on the pads 24 is discharged via the grooves 38. While the dimensions of the pad 24 and the grooves 38 are not critical, in a thirty inch long pad, three 0.25 by 0.25 inch grooves 38 spaced slightly over an inch apart in the center of the pad are effective. Of course, additional grooves with different dimensions can be used in the top of the pad 24.
-110541s vI
, , .. , ,.. . , , ... ,r..,. .I, . . ....h.l =..wx..... ..I a...1..,.....L..
The wear pad 24 can also be mounted on the arms 26 in place of the wear pads 25.
It will be appreciated that while the wear pad of the present invention has been described in a particular environment, i.e. on a specific slide assembly, the wear pad can be used on different endless belt conveyor slides. Moreover, the number of grooves and the dimensions thereof can vary depending upon, inter alia, the belt width and the speed of belt travel over the pads.
, , .. , ,.. . , , ... ,r..,. .I, . . ....h.l =..wx..... ..I a...1..,.....L..
The wear pad 24 can also be mounted on the arms 26 in place of the wear pads 25.
It will be appreciated that while the wear pad of the present invention has been described in a particular environment, i.e. on a specific slide assembly, the wear pad can be used on different endless belt conveyor slides. Moreover, the number of grooves and the dimensions thereof can vary depending upon, inter alia, the belt width and the speed of belt travel over the pads.
. . . .. .. . ... ......., . .,......._. ..'... i
Claims (4)
1. A wear pad for use on a slide of an endless track conveyor belt comprising an elongated body having a flat top surface for slidably supporting a conveyor belt during travel of the belt over the top surface between leading and trailing edges of the top surface; and a plurality of grooves in said top surface extending between the leading and trailing edges of the body for discharging liquid falling onto the top surface, whereby drag between the wear pad and the belt is reduced.
2. The wear pad of claim 1, wherein said leading and trailing edges of said body are beveled, and said grooves extend between said beveled edges.
3. The wear pad of claim 2, wherein said grooves are parallel and spaced apart by a distance greater than their width.
4. The wear pad of claim 3, wherein said grooves have square cross sections.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2552065 CA2552065A1 (en) | 2006-07-14 | 2006-07-14 | Wear pad endless belt conveyor slide |
| AU2006236068A AU2006236068A1 (en) | 2005-11-17 | 2006-11-17 | Slides for endless belt conveyors |
| US11/600,887 US20070108025A1 (en) | 2005-11-17 | 2006-11-17 | Slides for endless belt conveyors |
| EP06124332A EP1787925A3 (en) | 2005-11-17 | 2006-11-17 | Slides for Endless Belt Conveyors |
| US12/466,791 US20090277751A1 (en) | 2005-11-17 | 2009-05-15 | Slides for endless belt conveyors |
| US12/466,812 US7757839B2 (en) | 2005-11-17 | 2009-05-15 | Slides for endless belt conveyors |
| US12/794,232 US20100236899A1 (en) | 2005-11-17 | 2010-06-04 | Slides for endless belt conveyors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2552065 CA2552065A1 (en) | 2006-07-14 | 2006-07-14 | Wear pad endless belt conveyor slide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2552065A1 true CA2552065A1 (en) | 2008-01-14 |
Family
ID=38952120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2552065 Abandoned CA2552065A1 (en) | 2005-11-17 | 2006-07-14 | Wear pad endless belt conveyor slide |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2552065A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7757839B2 (en) | 2005-11-17 | 2010-07-20 | Canglide Inc. | Slides for endless belt conveyors |
| US8453830B2 (en) | 2007-08-22 | 2013-06-04 | Jean-Marc Boudreau | Slide and wear pad for endless belt conveyor |
-
2006
- 2006-07-14 CA CA 2552065 patent/CA2552065A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7757839B2 (en) | 2005-11-17 | 2010-07-20 | Canglide Inc. | Slides for endless belt conveyors |
| US8453830B2 (en) | 2007-08-22 | 2013-06-04 | Jean-Marc Boudreau | Slide and wear pad for endless belt conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |