CN202040234U

CN202040234U - Irreversible bidirectional clutch

Info

Publication number: CN202040234U
Application number: CN2011201544014U
Authority: CN
Inventors: 肖德明
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-16
Filing date: 2011-05-16
Publication date: 2011-11-16
Anticipated expiration: 2021-05-16

Abstract

The embodiment of the utility model discloses an irreversible bidirectional clutch which comprises a clutch main body with an inner cavity, a rotating shaft, a magnetic conductive steel ball, a fixed shaft sleeve with a permanent magnetic ring, and a clutch cover. A first end of the rotating shaft is rotationally connected with a shaft hole arranged on the axle center of the inner cavity of the clutch main body. A second end of the rotating shaft passes through the fixed shaft sleeve and is fixed on the clutch main body by the clutch cover. The first end of the rotating shaft is provided with convex teeth. The magnetic conductive steel ball is arranged between the first end of the rotating shaft and an inner cavity wall of the clutch main body. The inner cavity wall is provided with a groove, so that when the rotating shaft rotates, the top parts of the convex teeth drive the clutch main body to rotate by the magnetic conductive steel ball clamped in the groove. The irreversible bidirectional clutch disclosed by the embodiment of the utility model has a simple structure and is suitable for various machines which need the small-sized clutch.

Description

Irreversible twin-direction clutch

Technical field

The utility model relates to a kind of automatic curtain accessory, relates in particular to a kind of clutch of irreversible two-way rotation.

Background technique

Have in the prior art, clutch has gear clutch, friction clutcch, magnetic clutch etc., its complex structure, and the cost height, not being suitable for electrically driven curtain, printer, textile manufacturing machine etc. needs small-sized clutch mechanically.

Summary of the invention

The utility model embodiment technical problem to be solved is, a kind of clutch simple in structure is provided.Can be applicable to electrically driven curtain, textile manufacturing machine etc. and need small-sized clutch mechanically.

In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of clutch of irreversible two-way rotation, comprise clutch main body with inner chamber, rotating shaft, the magnetic conduction steel ball, be provided with the fixed axle sleeve of permanent-magnetic clamp, clutch cover, the axis hole that the lumen shaft of described rotating shaft first end and described clutch main body is provided with in the heart is rotationally connected, described rotating shaft second end passes described fixed axle sleeve, and be fixed on the described clutch main body by described clutch cover, described rotating shaft first end is provided with double wedge, described magnetic conduction steel ball is set between the internal chamber wall of described rotating shaft first end and described clutch main body, establish groove on the described internal chamber wall, when described rotating shaft was rotated, described double wedge top drove described clutch main body rotation by the described magnetic conduction steel ball that card sinks into described groove.

Further, described double wedge quantity is 3, and described 3 double wedges equidistantly are arranged in described rotating shaft second end around axis.

Further, the external diameter of the external diameter of described permanent-magnetic clamp and described double wedge is suitable.

As the improvement of such scheme, replace the permanent-magnetic clamp of described fixed axle sleeve with the magnetic conduction iron hoop, replace described magnetic conduction steel ball with the magnetic ball.

Implement the utility model embodiment, because under the interaction of the groove of double wedge, steel ball, clutch main body inner chamber, making turns left or can drive as the clutch main body of driven shaft when turning right as the rotating shaft of driving shaft rotates simultaneously, otherwise, the clutch main body is turned left or is turned right, can not drive rotating shaft and rotate, it is simple in structure, is applicable to the small-sized clutch of various needs mechanically.

Description of drawings

Fig. 1 is an overall structure schematic representation of the present utility model;

Fig. 2 is the structural representation that rotating shaft places clutch main body inner chamber;

Fig. 3 is a sectional structure schematic representation of the present utility model.

Embodiment

For making the purpose of this utility model, technological scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.

As Fig. 1, Fig. 2, structural representation shown in Figure 3.

The utility model number comprises clutch main body 10, rotating shaft 20, magnetic conduction steel ball 30, fixed axle sleeve 40, clutch cover 50, and clutch main body 10 is provided with inner chamber 101, and intracavity sidewall is provided with 3 grooves 102, and the radius of groove 102 equates with the radius of steel ball 30; On rotating shaft 20 first ends 202 3 double wedges 203 are set, double wedge 203 20 axis around the shaft is arranged on rotating shaft 20 first ends 202, as shown in Figure 2 equally spacedly; Rotating shaft 20 first ends 202 place the inner chamber 101 of clutch main body 10, and with the shaft axis of the inner chamber 101 of clutch main body 10 on the axis hole that is provided be rotationally connected, the steel ball 30 that is made of permeability magnetic material is set between the intracavity sidewall of rotating shaft 20 first ends 202 and clutch main body 10; Fixed axle sleeve 40 is socketed on the axle of second end 201 of rotating shaft 20, is fixed on the clutch main body 10 by clutch cover 50 simultaneously.

Also be socketed with a permanent-magnetic clamp 402 on the axle 401 of fixed axle sleeve 40, the external diameter of the double wedge 203 in the external diameter of permanent-magnetic clamp 402 and the rotating shaft 20 is suitable, when rotating shaft 20 is not rotated, steel ball is attracted to break away from from groove 102, as shown in Figure 2.

What need describe is, fixed axle sleeve 40, rotating shaft 20 are non-magnet material to be formed, and clutch main body 10 is POM material composition with clutch cover 50.

What need describe is, the quantity of the double wedge on rotating shaft first end is preferably 3 in the present embodiment, and the quantity of the groove on the intracavity sidewall of clutch main body is corresponding with double wedge quantity, but the utility model is not limited to this.

As second embodiment of the present utility model, magnetic conduction steel ball 30, permanent-magnetic clamp 402 can be replaced by magnetic ball, magnetic conduction iron hoop, and other structures are consistent with the structure of above-mentioned explanation, in this not repeat specification.

The utility model in use, when driving shaft rotating shaft 20 is rotated, under double wedge 203 edges and action of centrifugal force, steel ball 30 is broken away from the attraction force radial motion of magnet ring, stick in the groove 102 of clutch main body 10, double wedge 203 drives driven shaft clutch main body 10 rotation synchronously by the steel ball that card sinks in the groove 102; When rotating shaft 20 is stopped the rotation, and sit reversing a little, give steel ball 30 free activity spaces, steel ball 30 is deviate from the groove 102 of clutch main body under the effect in magnetic field, is adsorbed in the gap between the intracavity sidewall of double wedge 203 and clutch main body 10; When 10 rotations of clutch main body, because steel ball 30 is deviate from groove 102, driving shaft rotating shaft 20 is rotation thereupon not.

The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.

Claims

1. irreversible twin-direction clutch, it is characterized in that, comprise clutch main body with inner chamber, rotating shaft, the magnetic conduction steel ball, be provided with the fixed axle sleeve of permanent-magnetic clamp, clutch cover, the axis hole that the lumen shaft of described rotating shaft first end and described clutch main body is provided with in the heart is rotationally connected, described rotating shaft second end passes described fixed axle sleeve, and be fixed on the described clutch main body by described clutch cover, described rotating shaft first end is provided with double wedge, described magnetic conduction steel ball is set between the internal chamber wall of described rotating shaft first end and described clutch main body, establish groove on the described internal chamber wall, when described rotating shaft was rotated, described double wedge top drove described clutch main body rotation by the described magnetic conduction steel ball that card sinks into described groove.

2. a kind of irreversible twin-direction clutch according to claim 1 is characterized in that described double wedge quantity is 3, and described 3 double wedges equidistantly are arranged in described rotating shaft second end around axis.

3. a kind of irreversible twin-direction clutch according to claim 1 is characterized in that the external diameter of described permanent-magnetic clamp is suitable with the external diameter of described double wedge.

4. a kind of irreversible twin-direction clutch according to claim 1 is characterized in that, replaces the permanent-magnetic clamp of described fixed axle sleeve with the magnetic conduction iron hoop, replaces described magnetic conduction steel ball with the magnetic ball.