Guided cartridge belt cleaner

Patent metadata

Field	Value
Publication number	US-11878874-B2
Application number	US-202217748872-A
Country	US
Kind code	B2
Filing date	May 19, 2022
Priority date	May 19, 2021
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

A belt cleaner assembly is provided for cleaning a conveyor belt. The belt cleaner assembly includes an elongate support member for extending longitudinally across a conveyor belt. The belt cleaner assembly further includes a cartridge for supporting at least one scraper blade thereon. The cartridge is slidable over the support member. The belt cleaner assembly further includes slide blocks between the support member and the cartridge to space facing surfaces of the cartridge and the support member from each other.

First claim

What is claimed is:

1. A belt cleaner assembly comprising:
an elongate support member for extending longitudinally across a conveyor belt;
a cartridge for supporting at least one scraper blade thereon, the cartridge slidable over the support member; and
slide blocks between the support member and the cartridge to space facing surfaces of the cartridge and the support member from each other,
wherein the cartridge has a pair of side walls depending from either side of an upper wall to space the side walls for receiving the elongate support member therebetween with the upper wall engaged on the slide blocks for sliding thereon.

2. The belt cleaner assembly of claim 1 wherein the slide blocks are of a lower friction material than a material from which the cartridge is formed.

3. The belt cleaner assembly of claim 1 wherein the cartridge is of a metallic material and the slide blocks are of a polymeric material.

4. The belt cleaner assembly of claim 1 wherein the support member includes an upper surface, and the slide blocks are secured to the upper surface of the support member to support the cartridge on the slide blocks.

5. The belt cleaner assembly of claim 1 , wherein the cartridge includes a support rail having the upper wall and the side walls, and blade retention rails for retaining the at least one scraper blade therebetween, the blade retention rails removably securable to the upper wall of the support rail so that the at least one scraper blade retained between the blade retention rails projects upwardly from the upper wall of the support rail.

6. The belt cleaner assembly of claim 5 wherein the support rail upper wall includes an upper surface and a lower surface and the elongate support member has an upper surface facing and spaced from the upper wall lower surface of the support rail by the slide blocks, and fasteners of the blade retention rails for removably securing the blade retention rails to the support rail upper wall include fastener heads at the lower surface of the support rail upper wall with the slide blocks being sized to provide the fastener heads clearance from the elongate support member upper surface with the cartridge slid over the elongate support member.

7. A belt cleaner assembly comprising:
an elongate support member for extending longitudinally across a conveyor belt;
a cartridge for supporting at least one scraper blade thereon, the cartridge slidable over the support member; and
slide blocks between the support member and the cartridge to space facing surfaces of the cartridge and the support member from each other,
wherein the support member comprises a support shaft having a generally square cross-sectional configuration with upper and lower surfaces extending between lateral side surfaces having the slide blocks disposed thereon, and wherein the cartridge includes downwardly-extending legs having retention rails secured thereto so that with the cartridge slid over the support shaft the retention rails protrude laterally inward below the slide blocks and above the lower surface of the support shaft to inhibit tipping of the cartridge by engagement of at least one of the retention rails with at least one of the slide blocks.

8. A belt cleaner assembly comprising:
an elongate support member for extending longitudinally across a conveyor belt;
a cartridge for supporting at least one scraper blade thereon, the cartridge slidable over the support member; and
slide blocks between the support member and the cartridge to space facing surfaces of the cartridge and the support member from each other,
wherein the support member comprises a support shaft having a generally square cross-sectional configuration with upper and lower surfaces extending between lateral side surfaces, and wherein the slide blocks include upper slide blocks secured to and spaced apart along the upper surface of the support member and side slide blocks secured to and spaced apart along the lateral side surfaces of the support member.

9. A belt cleaner assembly comprising:
an elongate support member for extending longitudinally across a conveyor belt;
a cartridge for supporting at least one scraper blade thereon, the cartridge slidable over the support member; and
slide blocks between the support member and the cartridge to space facing surfaces of the cartridge and the support member from each other,
wherein the slide blocks include first generally rectangular slide blocks having long axes orthogonal to a central axis of the support member, and second generally rectangular slide blocks having long axes parallel to the central axis of the support member.

10. A belt cleaner assembly comprising:
an elongate support member for extending longitudinally across a conveyor belt;
a cartridge for supporting at least one scraper blade thereon, the cartridge slidable over the support member; and
slide blocks between the support member and the cartridge to space facing surfaces of the cartridge and the support member from each other,
wherein the slide blocks are longitudinally spaced apart to define a longitudinal gap between adjacent slide blocks.

11. A belt cleaner assembly comprising:
an elongate support member for extending longitudinally across a conveyor belt;
a cartridge for supporting at least one scraper blade thereon, the cartridge slidable over the support member; and
slide blocks between the support member and the cartridge to space facing surfaces of the cartridge and the support member from each other,
wherein the support member includes a lateral side surface, and the slide blocks are secured to the lateral side surface of the support member to guide the cartridge during sliding of the cartridge relative to the support member.

12. A resilient mounting assembly for a belt cleaner for a conveyor belt, the resilient mounting assembly comprising:
a mounting plate for being fixed to a conveyor structure and having an opening to allow a support member to extend therethrough, the support member configured to allow belt cleaner blades of the belt cleaner to be mounted thereto;
a plurality of circumferentially spaced guide blocks having arcuate guide surfaces each having the same radius of curvature, the plurality of guide blocks secured to the mounting plate such that the arcuate guide surfaces have the same radial distance to a central axis of rotation; and
a rotatable cradle plate mounted to extend between the guide blocks and having the support member and belt cleaner blades operatively secured thereto for rotation therewith, the cradle plate having an outer arcuate periphery with a radius of curvature corresponding to the radius of curvature of the arcuate guide surfaces such that rotation of the cradle plate about the central axis relative to the mounting plate is guided by the arcuate guide surfaces.

13. The resilient mounting assembly of claim 12 wherein each of the plurality of guide blocks has a block body that includes a groove, wherein the arcuate guide surface of each of the plurality of guide blocks is at a recessed bottom of the groove.

14. The resilient mounting assembly of claim 13 wherein each of the grooves has opposite open ends, and the rotatable cradle plate is retained by the guide blocks for rotation relative to the mounting plate with the outer arcuate periphery of the rotatable cradle plate received in the guide block grooves.

15. The resilient mounting assembly of claim 13 wherein each of the block bodies has opposite sidewalls on either side of the groove, the sidewalls having a varying depth along the groove.

16. The resilient mounting assembly

Assignees

• Flexible Steel Lacing Co

Inventors

• Devries Brett E

Classifications

• B65G45/14 Primary

  Moving scrapers · CPC title

• B65G45/12

  comprising scrapers · CPC title

• B65G45/06

  forming belt troughing structure · CPC title

• B65G45/16 Primary

  with scraper biasing means · CPC title