CN2871960Y

CN2871960Y - One-way moment rotary wheel

Info

Publication number: CN2871960Y
Application number: CN 200520046151
Authority: CN
Inventors: 刘中华; 李功乙
Original assignee: Shanghai First Iron & Steel Co Ltd Baogang Group
Current assignee: Shanghai First Iron & Steel Co Ltd Baogang Group
Priority date: 2005-10-31
Filing date: 2005-10-31
Publication date: 2007-02-21
Anticipated expiration: 2015-10-31

Abstract

The utility model discloses a single-direction moment turning wheel, comprising a noumenon of chamber structure with upper and lower planes and a circumferential plane. The center of the structure is opened with a through hole for a rotation shaft of a motor. The upper and lower planes are opened with a groove of a parabola profile from circumference to center and large outside and getting smaller gradually. A cylindrical bearing is arranged in the groove of the parabola profile. A spring is arranged in the groove of the parabola profile with an end of the spring in connection with the bracing piece and the other joining with the inner wall of the groove. The bracing piece props the cylindrical bearing. When the motor runs positively, the groove of the parabola profile in the noumenon has the same direction as the rotation. The rotation spring of the motor props up with the cylindrical bearing to rotate together. Because the parabola is larger outside and smaller inside, a wedge angle of the cylindrical bearing is getter smaller and the rollers are getting closed together, finally the belt runs with the rotation shaft of the motor. When the motor runs reversely, the rotating direction of the cylindrical bearing is always going outwards. Although the spring is propping, the reversed rotation of the motor turns the cylindrical bearing towards the large space of the parabola groove. Therefore, the cylindrical bearing can not clamp tightly the shaft head of the motor and the belt pulley is in a status of suspension.

Description

Unidirectional moment runner

Technical field

The utility model relates to Electrified Transmission to the moment slewing gear.

Background technique

Automation control, the production line conveyor belt, oven stepping feeder has all been used the mechanical device that rotates, as everyone knows, steel rolling mill's material loading rollgang of metallurgy industry its mainly to act on be workpiece to be rotated by roller-way deliver to oven, also have some special occasions to need slewing gear, folk prescription is to stressed, do not stress in the other direction, similar bicycle freewheel, the socket wrench that pincers worker is used and the location of some escapement, draw an analogy, we see conveyor belt usually, it is as power with motor, drag wheel and rotation, another place adorns a follower, with rubber conveyer belt it is tied when two, just can reach and material be unloaded down and article delivery is located to another, we see that the rotation of belt is the motion that relies on axle traditionally.Certainly some occasion, need the running of line belt forward with article delivery to the appointed place, if motor turns round in the other direction, belt does not change, but motor can also guarantee normal rotation.Existing equipment can't satisfy above-mentioned requirements.

Summary of the invention

The purpose of this utility model is to design a kind of unidirectional moment runner, can be when motor turn round in the other direction, and belt does not change, but motor can also guarantee normal rotation, promptly can accomplish forward rotation, plugging.

For achieving the above object, the technical solution of the utility model is, unidirectional moment runner is characterized in that it comprises, body, and it is a cavity body structure, comprises upper and lower surfaces and circumferential surface, its center has the through hole of the rotating shaft of placing motor; Its upper and lower surfaces have by periphery to the center be parabola, outside big gradually little groove; Cylindrical bearing is arranged at respectively in this parabola groove; Spring is arranged at respectively in this parabola groove, and the one end connects a support block, and the other end is connected in the groove inwall, and this support block is against cylindrical bearing.

When motor just changeed, the parabola groove in the runner was consistent with sense of rotation, and the motor rotating spring heads on the cylindrical bearing rotation, and because of the outer imperial palace of parabola is little, the contract angle of cylindrical bearing is more and more littler, and ball is crowded more tight more, and last belt follows machine shaft one to run up.

When the motor opposite spin, the direction of cylindrical bearing rotation is outwards run all the time, though there is spring to head on, to the rotation of parabola groove general goal, so the not tight motor shaft head of cylindrical bearing folder, belt pulley is in halted state with cylindrical bearing in the motor opposite spin.

It mainly is because the parabola groove is that the center is little, and is outwards big, is in the unidirectional movement state all the time so can reach axle.

Advantage of the present utility model is,

Do not have keyway in the rotating shaft of the present utility model, many reverse prevention functions are utilized physics inclined-plane theorem, solve the effect that unidirectional rotation is oppositely prevented, and can accomplish forward rotation, plugging.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the worm's eye view of Fig. 1.

Embodiment

Referring to Fig. 1, Fig. 2, unidirectional moment runner of the present utility model, it comprises body 1, cylindrical bearing 2, spring 3; Body 1, it is a cavity body structure, comprises upper and lower surfaces 11,12 and circumferential surface 13, its center has the through hole 10 of the rotating shaft of placing motor; Its upper and lower surfaces 11,12 have 3 by periphery to the center be parabola, outside big gradually little groove 14; Cylindrical bearing 2 is arranged at respectively in this parabola groove 14; Spring 3 is arranged at respectively in this parabola groove 14, and the one end connects a support block 4, and the other end is connected in groove 14 inwalls, and this support block 4 is against cylindrical bearing 2.

When motor just changeed, the parabola groove 14 in the runner body 1 was consistent with sense of rotation, the motor rotation, spring 3 heads on cylindrical bearing 2 rotations, and because of the outer imperial palace of groove 14 parabolas is little, the contract angle of cylindrical bearing 2 is more and more littler, ball is crowded more tight more, and last belt follows machine shaft 5 one to run up.

When the motor opposite spin, the direction of cylindrical bearing 2 rotations is outwards run all the time, though there is spring 3 to head on, to the rotation of parabolic groove general goal, so the not tight motor shaft head of cylindrical bearing 2 folders, belt pulley is in halted state with cylindrical bearing 2 in the motor opposite spin.

Claims

1. unidirectional moment runner is characterized in that, it comprises,

Body, it is a cavity body structure, comprises upper and lower surfaces and circumferential surface, its center has the through hole of the rotating shaft of placing motor; Its upper and lower surfaces have by periphery to the center be parabola, outside big gradually little groove;

Cylindrical bearing is arranged at respectively in this parabola groove;

Spring is arranged at respectively in this parabola groove, and the one end connects a support block, and the other end is connected in the groove inwall, and this support block is against cylindrical bearing.

2. unidirectional moment runner as claimed in claim 1 is characterized in that, describedly is parabolical groove and is provided with 3.