Application Examples Chain Tensioning for Long Track Systems
A track system driven by a chain or belt ideally requires a means of adjustment for pretensioning and to allow for subsequent wear and stretch, particularly in the case of a chain drive. Limited adjustment can be achieved by providing a slot at the chain to carriage connection point (see top illustration
16) or by link connection of chain to carriage (see center illustration 16 and
example below). However, in systems where a large amount of adjustment is anticipated or where the path of the belt or chain must follow in exact relationship to the path of the track, the Slip Block or Bridging methods of adjustment should be considered.
Slip Block Adjustment Method
Bishop-Wisecarver can provide sets of short length straight slides in various increments of length, precisely matched to those on the track system and with square ground ends. Each slide will be marked according to its length. Slide support blocks can also be supplied to customer's drawing if required.
Longer section of slideway placed in gap following chain adjustment
Chain pretensioner
Bridging Slide Adjustment Method
The bridging slide arrangement enables the track to be extended following adjustment of the chain drive while maintaining continuity of guidance and control. In order to traverse the adjustment gap, the bearings have external chamfers on the outside diameter in addition to the normal central V. The bridging slide arrangement comprises of three fixed slideways and one adjustable slideway, see illustrations below. All components comprising the bridging slide arrangement and special bearings can be readily supplied. Please advise total amount of slide adjustment required.
D-D C-C B-B A-A Chain pretensioner B-B
Bearings engaged on upper and lower slideway
C-C
Bearings engaged on central slideway
Bridging arrangement D-D 19
Slideway can be repositioned to take up gap following chain adjustment
A-A
Bearings engaged on all three slideways
Bearings engaged on central slideway
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64