JPS61153687U

JPS61153687U -

Info

Publication number: JPS61153687U
Application number: JP3767985U
Authority: JP
Priority date: 1985-03-15
Filing date: 1985-03-15
Publication date: 1986-09-24

Description

[Brief explanation of the drawing]

図面は本考案に係るクローラ緊張装置の実施例
を示し、第１図イは車軸支持アームの挿脱操作を
示す一部切欠平面図、第１図ロは車軸支持アーム
を所定姿勢にセツトした状態の一部切欠平面図、
第２図は全体構成を示した側面図、第３図は従来
装置の一部切欠平面図である。１……トラツクフレーム、２……スライドブラ
ケツト、３……車軸支持アーム、４……車軸、５
……緊張輪、６……クローラーベルト、７……第
１当板、８……第２当板、９……駆動輪、１０…
…転輪、１１……調整具、１２……ナツトないし
ネジ穴、１３……螺棒。 The drawings show an embodiment of the crawler tensioning device according to the present invention, and FIG. 1A is a partially cutaway plan view showing the insertion and removal operation of the axle support arm, and FIG. 1B is a state in which the axle support arm is set in a predetermined posture. Partially cutaway plan view of
FIG. 2 is a side view showing the overall configuration, and FIG. 3 is a partially cutaway plan view of the conventional device. 1... Truck frame, 2... Slide bracket, 3... Axle support arm, 4... Axle, 5
... tension wheel, 6 ... crawler belt, 7 ... first contact plate, 8 ... second contact plate, 9 ... drive wheel, 10 ...
...Rotary wheel, 11...Adjustment tool, 12...Nut or screw hole, 13...Threaded rod.

Claims

[Claims for Utility Model Registration] Drive wheels 9 supported by the truck frame 1;
This tensioning device is capable of adjusting the distance between the driving wheel 9 and the tensioning wheel 5 of a crawler traveling device including a crawler belt 6 wound around a rolling wheel 10 and a tensioning wheel 5, and the tensioning device has the track frame 1. An axle support arm 3 is slidably inserted into a hollow rectangular cylindrical slide bracket 2 formed at the rear end so as to be freely retractable.
and an axle 4 which is attached to the arm 3 in a cantilevered manner and rotatably supports the tension ring 5, and the slide bracket 2 on the side from which the axle 4 protrudes from the truck frame 1.
A first abutment plate 7 is fixed to the inner surface of the end portion, and a second abutment plate 8 is fixed to the inner surface of the bracket at a distance from this abutment plate in the longitudinal direction of the slide bracket 2 and on the side opposite to the axle protruding side. The distance between the inner surfaces of the first and second contact plates 7 and 8 is approximately the same as the width of the axle support arm 3, and the tension wheel 5 is adjusted in the direction in which the tension wheel 5 is separated from the drive wheel 9 by the adjustment tool 11. The crawler tensioning device is configured such that the axis of the axle support arm 3 and the axis of the slide bracket 2 become substantially parallel to each other due to the reaction force received from the crawler belt 6 when the crawler belt 6 is displaced and tensioned. A member 1 in which the tensioning tool 3 engages with a screw shaft 13 extending between the base of the axle support arm 3 and the outer surface near the end of the slide bracket 2.
2. The crawler tensioning device according to claim 1 of the utility model registration claim.