CN2373414Y

CN2373414Y - Automatic self-aligning screw idler

Info

Publication number: CN2373414Y
Application number: CN 98227507
Authority: CN
Inventors: 王家豹
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-04
Filing date: 1998-08-04
Publication date: 2000-04-12
Anticipated expiration: 2008-08-04

Abstract

The utility model relates to an automatic aligning screw idler which is composed of a trough idler, a parallel idler, a trough bracket 4 for supporting the trough idler, and a lower idler hanger 5 for fixing the parallel idler. The trough idler is fixed on the trough bracket to form a groove shape; the lower idler hanger 5 is arranged on the lower part of the trough bracket 4 to fix the parallel idler. The trough idler and the parallel idler surfaces on both sides are respectively made into positively and reversely rotary screw threads according to the center lines, the centripetal thrust force is automatic equalized, and the function of automatic deflection correction is achieved. The utility model is suitable for the automatic deflection correction of a belt conveyor.

Description

Automatic aligning spiral carrying roller

The utility model relates to a kind of spiral carrying roller, particularly has externally threaded automatic aligning spiral carrying roller.

At present, carrying roller is travelling apron parts commonly used, and its effect is support adhesive tape (material) rolling transmission.The travelling apron modal fault that is in operation is exactly a rubber belt from deviating, and this fault of sideslip the lighter makes the serious jam in adhesive tape edge, wearing and tearing; Weight person can tear, break adhesive tape, causes the putty breaks in production.Though in design, be provided with upper and lower aligning retaining roller for the operating personal adjustment every one section, along with the scope of the enterprise development, long distance is carried more and more general, the travelling apron that reaches hundreds of meters can be found everywhere in large enterprise, this just makes the incompatible development far away of manual shift means, the influence factor of rubber belt from deviating has many, it comprise install that repair quality, cemented belt joint quality, material feeding are just denied, convey materials contains corrosive water, vapour, operating personal technology, sense of responsibility etc. cause aligning device sensitivity, reliability to reduce, accident frequency increases.

The purpose of this utility model is exactly design-calculated in order to solve this problem of sideslip, and it is to rely on the screw thread on the spiral carrying roller to come automatic aligning.

Design plan of the present utility model is such design-calculated: by the troffer 4 of flute profile carrying roller, parallel roll, support flute profile carrying roller, fixing a kind of automatic aligning spiral carrying roller of forming of the snub pulley suspension bracket 5 of parallel roll, the flute profile carrying roller is divided into three sections of left, center, right, be separately fixed on the troffer 4 and form groove shapes, snub pulley suspension bracket 5 is contained in the bottom of troffer 4, parallel roll is fixed on the snub pulley suspension bracket 5, is characterized in: the outside face of the left-handed carrying roller 1 of flute profile carrying roller left side section is shaped on and is rotated in the forward screw thread; The outside face of the dextrorotation carrying roller 3 of the right section of flute profile carrying roller is shaped on the contrarotation screw thread; The mid-carrying roller 2 in flute profile carrying roller stage casing is the boundary with its line of centers, and the half of outside face in a left side is shaped on and is rotated in the forward screw thread, and right half of outside face is shaped on the contrarotation screw thread; Parallel roll 6 is the boundary with its line of centers, and the half of outside face in a left side is shaped on and is rotated in the forward screw thread; Right half of outside face is shaped on the contrarotation screw thread.

The utility model need not change any installation dimension of travelling apron, the spiral carrying roller can be selected advanced composite material compression moldings such as injection moulding stone, rubber and plastic, solid rubber for use, these composite materials have good hardness, intensity, not only wear-resisting but also in light weight, cost is low, be convenient to produce; The effect of existing support adhesive tape of spiral self-centering idler and material has spiral aligning function again.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is flute profile, parallel spiral carrying roller scheme of installation.

Fig. 2 is a spiral idler structure scheme drawing.

The screw thread of left-handed carrying roller 1 is a left-hand screw among Fig. 1, for the left side, interface is a left-hand screw, the right is a right-hand screw with the line of centers for mid-carrying roller 2, and the screw thread of dextrorotation carrying roller 3 is right-hand screws, troffer 4 and snub pulley suspension bracket 5 all do not change the original design mode, and parallel roll 6 is identical with mid-carrying roller 2 structures.Position with angle, troffer both sides is installed left and right spiral carrying roller 1 and 2 respectively by the adhesive tape service direction, and hand of rotation needs consistent, can not load in mixture, and the mid-carrying roller 2 of left and right screw thread half and half is installed at the middle part, and parallel roll 6 is installed in the bottom.Utilize the screw thread and the friction of adhesive tape support on carrying roller surface to form the helical angle centripetal thrust force, left and right sides screw thread centripetal thrust force is equated, keep adhesive tape, reach the effect of automatic deflection adjusting in the center normal operation.

7 is the screw thread cylindrical shell among Fig. 2, and 8 is bearing cap shim, and 9 is roll shaft, and 10 is spherical bearing; Carrying roller cylinder 7 surfaces can be selected rectangle, Acme thread for use, and tooth is apart from fixing on 20---40mm according to travelling apron width, carrying roller size.

Claims

1, a kind of automatic aligning spiral carrying roller, by the troffer (4) of flute profile carrying roller, parallel roll, support flute profile carrying roller, fixedly the snub pulley suspension bracket (5) of parallel roll is formed, the flute profile carrying roller is divided into three sections of left, center, right, be separately fixed at troffer (4) and go up the formation groove shapes, snub pulley suspension bracket (5) is contained in the bottom of troffer (4), parallel roll is fixed on the snub pulley suspension bracket (5), it is characterized in that: the outside face of the left-handed carrying roller (1) of flute profile carrying roller left side section is shaped on and is rotated in the forward screw thread; The outside face of the dextrorotation carrying roller (3) of the right section of flute profile carrying roller is shaped on the contrarotation screw thread; The mid-carrying roller (2) in flute profile carrying roller stage casing is the boundary with its line of centers, and the half of outside face in a left side is shaped on and is rotated in the forward screw thread, and right half of outside face is shaped on the contrarotation screw thread; Parallel roll (6) is the boundary with its line of centers, and the half of outside face in a left side is shaped on and is rotated in the forward screw thread; Right half of outside face is shaped on the contrarotation screw thread.