CN213776281U - Low-noise flexible chain wheel - Google Patents

Abstract

The utility model belongs to the technical field of chain wheels, in particular to a low-noise flexible chain wheel, which comprises a chain wheel, the outer side wall of the chain wheel is fixedly connected with a gear tooth, the diameter of the addendum circle of the gear tooth is the same as that of the dedendum circle, the width of the groove of the chain wheel is the same as the width of the tooth, a mounting hole is arranged at the axle center of the chain wheel, a groove is arranged at the lower end above the mounting hole, the inner side wall of the mounting hole is detachably connected with a fixed shaft, the upper end of the outer side of the fixed shaft and the top end of the inner side of the fixed shaft are respectively provided with a groove B and a groove A, the inner side walls of the groove B and the groove A are detachably connected with a flat key and a flat key A which are clamped with the groove, the device has and need not coat or fill up the rubber pad to the sprocket, through the friction between the reduction teeth of a cogwheel and the chain with this effect of making an uproar that reaches, the loss of material still can not appear simultaneously.

Description

Low-noise flexible chain wheel

Technical Field

The utility model relates to a sprocket technical field, concretely relates to flexible sprocket of low noise.

Background

The chain wheel is a wheel with cog type sprocket for meshing with blocks with accurate pitch on a chain link ring or a cable, a solid or spoked gear is meshed with a (roller) chain to transfer motion, and the chain wheel is widely applied to mechanical transmission in the industries of chemical industry, textile machinery, food processing, instruments and meters, petroleum and the like.

The flexible sprocket of current low noise only falls to make an uproar through the coating or fills up the rubber pad and falls the sprocket when making an uproar, but coating or rubber pad can appear after long-time and the friction of chain that the coating drops or change the rubber pad, has so not only caused the loss of material, and noise reduction effect is also not too good moreover.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a flexible sprocket of low noise has and need not coat or fill up the rubber pad and just can reach the effect of making an uproar to the sprocket, the loss of material still can not appear simultaneously.

For realizing the above-mentioned purpose, the utility model provides a following technical scheme, including the sprocket, the lateral wall fixedly connected with teeth of a cogwheel of sprocket, the diameter and the root circle of the addendum circle of the teeth of a cogwheel are the same, the width of the groove width and the tooth width of sprocket is the same, sprocket axle center department has seted up the mounting hole, the top lower extreme of mounting hole is seted up flutedly, the inside wall of mounting hole can be dismantled and be connected with the fixed axle, recess B and recess A have been seted up respectively on the outside upper end and the inboard top of fixed axle, recess B and recess A's inside wall can be dismantled and be connected with parallel key and parallel key A, parallel key and groove joint.

In order to increase the noise reduction effect of the chain wheel, the noise reduction effect of the chain wheel is increased the outer side wall of the gear tooth is detachably connected with a noise reduction rubber ring.

In order to more conveniently fix the chain wheel and the driving shaft, the other end of the flat key A is clamped with the driving shaft.

In order to reduce the weight of the chain wheel, a lightening hole is formed in the outer side wall of the chain wheel in a penetrating mode.

In order to prevent the chain wheel from falling off after installation, the widths of the flat keys and the flat keys A are not larger than the widths of the grooves B, the grooves A and the grooves.

For better fixing and mounting of the chain wheel, the diameter of the fixing shaft is larger than that of the mounting hole.

In order to prolong the service life of the chain wheel, the material of the chain wheel and the gear teeth is flexible ABS plastic.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this kind of flexible sprocket of low noise, through need during the use the device with the sprocket cover in the fixed axle, then fix the sprocket through parallel key and recess joint, fixed back is the same through the diameter of addendum circle on the teeth of a cogwheel and dedendum circle, can reduce between the teeth of a cogwheel and the friction between the chain to this noise abatement sets up to the same through the width with the groove width of sprocket and tooth width, can reduce the collision between chain and the teeth of a cogwheel, can reach the effect of noise abatement like this.

2. This kind of flexible sprocket of low noise through the rubber circle of making an uproar that falls that sets up at teeth of a cogwheel lateral wall, the noise that the reduction friction that can be great brought can also reduce the friction between the teeth of a cogwheel and the chain simultaneously to this increases the life of the teeth of a cogwheel.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a front view of a low noise flexible sprocket of the present invention;

FIG. 2 is a top view of a low noise flexible sprocket of the present invention;

FIG. 3 is a cross-sectional view of a low noise flexible sprocket of the present invention;

FIG. 4 is a structural view of a low noise flexible sprocket of the present invention;

in the figure, 1, a chain wheel; 101. a groove; 102. gear teeth; 103. lightening holes; 104. mounting holes; 2. a fixed shaft; 201. a groove A; 202. a groove B; 3. a flat bond; 301. flat bond A.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Please refer to fig. 1-4, the utility model provides a following technical scheme, including sprocket 1, sprocket 1's lateral wall fixedly connected with teeth of a cogwheel 102, the diameter and the root circle of the addendum circle of teeth of a cogwheel 102 are the same, sprocket 1's groove width is the same with the width of tooth width, sprocket 1 axle center department has seted up mounting hole 104, recess 101 has been seted up to the top lower extreme of mounting hole 104, the inside wall of mounting hole 104 can be dismantled and be connected with fixed axle 2, recess B202 and recess A201 have been seted up respectively on the outside upper end and the inboard top of fixed axle 2, recess B202 and recess A201's inside wall can be dismantled and be connected with parallel key 3 and parallel key A301, parallel key 3 and recess 101 joint.

In this embodiment: use the device during through need with sprocket 1 cover in fixed axle 2, then fix sprocket 1 through flat key 3 and recess 101 joint, fixed back is the same through the diameter of addendum circle on the teeth of a cogwheel 102 and dedendum circle, can reduce the friction between the teeth of a cogwheel 102 and the chain to this noise abatement, the width through the groove width with sprocket 1 and tooth width sets up to the same, can reduce the collision between chain and the teeth of a cogwheel 102, can reach the effect of noise abatement like this.

As a technical optimization scheme of the utility model, the lateral wall of teeth of a cogwheel 102 can be dismantled and be connected with and fall the rubber circle of making an uproar.

In this embodiment: through the rubber circle of making an uproar that falls that sets up at teeth of a cogwheel 102 lateral wall, the noise that can great reduction friction brought can also reduce the friction between teeth of a cogwheel 102 and the chain simultaneously to this increases the life of teeth of a cogwheel 102.

As a technical optimization scheme of the utility model, flat key A301's the other end and drive shaft joint.

In this embodiment: the other end of the flat key A301 is clamped with the driving shaft, so that the chain wheel 1 or the driving shaft can be replaced, and the using number of the chain wheel 1 in different using states can be reduced.

As a technical optimization scheme of the utility model, the lateral wall of sprocket 1 runs through and has seted up lightening hole 103.

In this embodiment: the weight of the sprocket 1 can be greatly reduced by forming lightening holes 103 through the outer side wall of the sprocket 1, thereby reducing the friction force thereof.

As a technical optimization scheme of the utility model, the width of flat key 3 and flat key a301 is not more than the width of recess B202, recess a201 and recess 101.

In this embodiment: by setting the widths of the flat key 3 and the flat key a301 to be not more than the widths of the groove B202, the groove a201, and the groove 101, the sprocket can be fixed better.

As a technical optimization of the present invention, the diameter of the fixing shaft 2 is larger than the diameter of the mounting hole 104.

In this embodiment: the diameter of the fixing shaft 2 is set to be larger than that of the mounting hole 104, so that the chain wheel can be more conveniently and fixedly mounted.

As a technical optimization scheme of the utility model, the material of sprocket 1, teeth of a cogwheel 102 is flexible ABS plastics.

In this embodiment: by providing the material of the sprocket 1, the teeth 102 as a flexible ABS plastic, their service life can be greatly increased.

The utility model discloses a theory of operation and use flow: use the device during through need with sprocket 1 cover in fixed axle 2, then fix sprocket 1 through parallel key 3 and recess 101 joint, fixed back through the addendum circle on the teeth of a cogwheel 102 and the same diameter of root circle, can reduce the friction between the teeth of a cogwheel 102 and the chain to this noise abatement, the width through the groove width with sprocket 1 and tooth width sets up to the same, can reduce the collision between chain and the teeth of a cogwheel 102, can reach the effect of noise abatement like this.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. A low noise flexible sprocket, includes sprocket (1), the lateral wall fixedly connected with teeth of a cogwheel (102) of sprocket (1), its characterized in that: the diameter and the root circle of the addendum circle of teeth of a cogwheel (102) are the same, the groove width of sprocket (1) is the same with the width of tooth width, sprocket (1) axle center department has seted up mounting hole (104), recess (101) are seted up to the top lower extreme of mounting hole (104), the inside wall of mounting hole (104) can be dismantled and be connected with fixed axle (2), recess B (202) and recess A (201) are seted up respectively on the outside upper end and the inboard top of fixed axle (2), the inside wall of recess B (202) and recess A (201) can be dismantled and be connected with parallel key (3) and parallel key A (301), parallel key (3) and recess (101) joint.

2. A low noise flexible sprocket as defined in claim 1, wherein: the outer side wall of the gear teeth (102) is detachably connected with a noise reduction rubber ring.

3. A low noise flexible sprocket as defined in claim 1, wherein: the other end of the flat key A (301) is clamped with the driving shaft.

4. A low noise flexible sprocket as defined in claim 1, wherein: the outer side wall of the chain wheel (1) is provided with lightening holes (103) in a penetrating mode.

5. A low noise flexible sprocket as defined in claim 1, wherein: the widths of the flat key (3) and the flat key A (301) are not more than the widths of the groove B (202), the groove A (201) and the groove (101).

6. A low noise flexible sprocket as defined in claim 1, wherein: the diameter of the fixed shaft (2) is larger than that of the mounting hole (104).

7. A low noise flexible sprocket as defined in claim 1, wherein: the sprocket (1) and the gear teeth (102) are made of flexible ABS plastic.

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