CN202732779U - One-way clutch of fitness flywheel - Google Patents

Abstract

The utility model discloses a one-way clutch of a fitness flywheel. The one-way clutch of the fitness flywheel comprises a one-way bearing, two plastic spacers and a clutch flange, wherein the one-way bearing and the two plastic spacers are connected onto the clutch flange in a sheathing way; the one-way bearing is located between the two plastic spacers; the clutch flange is fixedly arranged on a shaft sleeve of the flywheel; and a minor sprocket is connected onto the one-way bearing in the sheathing way. With the adoption of the one-way clutch of the fitness flywheel, the safety of the fitness flywheel in use is improved.

Description

A kind of body-building flywheel overrunning clutch

Technical field

The utility model relates to the technical field of fitness equipments, refers in particular to a kind of body-building flywheel overrunning clutch.

Background technique

The mechanical transmission basic part of transmission that overrunning clutch is only can single direction (clockwise direction or counterclockwise).Its effect is to make certain element can only be by certain direction rotation, locking on another direction.When power source drives passive device, if when power source turns (as becoming clockwise counterclockwise), passive device then can automatic trip from the function that does not produce any power and transmit.When power output (interior ring or outer shroud) the rotating ratio power source (outer shroud or interior ring) of overrunning clutch was also fast, clutch was in the state of freeing, and inside and outside ring is without any continuous action relation, the mono-directional overrun function of this meaning overrunning clutch.

In the market, traditional exercycle is only installed an independently sprocket wheel at flywheel.As depicted in figs. 1 and 2, flywheel 11 has axle sleeve 111 and axle core 112, also is provided with ball bearing 113 between axle sleeve 111 and axle core 112, and sprocket wheel 12 is installed on the axle sleeve 111 of flywheel 11.Like this, the axle sleeve 111 that rotarily drives flywheel 11 by sprocket wheel 12 moves, and axle sleeve 111 is by 112 rotations of ball bearing 113 band moving axis cores, thus flywheel driven 11 rotations.

Yet, because at flywheel 11 overrunning clutch or similar device not being installed, in use, after the user stopped to trample exercycle, flywheel 11 can be because inertia continues rotation, can be transmitted in successively axle core 112, ball bearing 113, axle sleeve 111 and sprocket wheel 12, thereby do passive rotation with user's pin, like this, just be easy to injure user's pin, bring certain danger to the user, have larger potential safety hazard.

Therefore, the inventor makes further research this, develops a kind of body-building flywheel overrunning clutch, and this case produces thus.

The model utility content

The purpose of this utility model is to provide a kind of body-building flywheel overrunning clutch, the Security when improving the use of body-building flywheel.

To achieve these goals, the technical solution of the utility model is as follows:

A kind of body-building flywheel overrunning clutch comprises a unilateral bearing, two plastic spacers and a clutch flange; Unilateral bearing and two plastic spacers are socketed on the clutch flange, and unilateral bearing is between two plastic spacers; Clutch flange is fixed on the axle sleeve of flywheel; Minor sprocket is fixed by socket on unilateral bearing.

Preferably, also comprise a locking nut, clutch flange has a through hole, and locking nut is arranged in the through hole of clutch flange.

Preferably, also set up a moment regulating device, moment regulating device is comprised of a clutch compressing tablet, belleville spring and regulating block; One clutch compressing tablet is socketed on the clutch flange, is positioned at the top of plastic spacer; Regulating block and belleville spring are fixed on the axle sleeve of flywheel, and belleville spring is between regulating block and clutch compressing tablet.

Preferably, has an adjustment hole on the regulating block.

Preferably, have a protruding grain on the clutch flange inwall, have a groove on the axle sleeve of flywheel, clutch flange is fixed on the axle sleeve of flywheel by protruding grain and groove.

After adopting such scheme, the utility model compared with prior art because overrunning clutch is installed, in use, after minor sprocket is transmitted in the axle sleeve of unilateral bearing, clutch flange, flywheel successively, the rotation of the axle core of flywheel driven, i.e. flywheel driven rotation.After minor sprocket stops operating, flywheel is transmitted in axle sleeve, clutch flange and unilateral bearing, because minor sprocket stops operating then because inertia continues rotation, it is the pressure-acting that unilateral bearing does not bear minor sprocket, unilateral bearing single direction rotation only in situation about not stressing, other direction idle running is so can not drive the minor sprocket motion, avoided doing passive rotation with user's pin, like this, just can not injure user's pin, overcome the larger potential safety hazard of existence in the prior art.

Description of drawings

Fig. 1 is the schematic representation of prior art;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is schematic representation of the present utility model;

Fig. 4 is decomposing schematic representation of the present utility model;

Fig. 5 uses schematic representation of the present utility model;

Fig. 6 is the partial enlarged drawing of Fig. 5;

Fig. 7 uses combination schematic representation of the present utility model;

Fig. 8 is the schematic representation of the utility model regulating block.

Label declaration

Flywheel 11 axle sleeves 111

Axle core 112 ball bearings 113

Unilateral bearing 2 plastic spacers 3

The first plastic spacer 31 second plastic spacers 32

Clutch flange 4 through holes 41

Flange 42 protruding grains 43

Flywheel 5 axle sleeves 51

Groove 511 minor sprockets 6

Locking nut 7 moment regulating devices 8

Clutch compressing tablet 81 belleville springs 82

Regulating block 83 adjustment holes 831.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Such as Fig. 3 and shown in Figure 6, a kind of body-building flywheel overrunning clutch that the utility model discloses comprises a unilateral bearing 2, two plastic spacers 3 and a clutch flange 4.Unilateral bearing 2 and two plastic spacers 3 are socketed on the clutch flange 4, and unilateral bearing 2 is between two plastic spacers 3; Clutch flange 4 is fixed on the axle sleeve 51 of flywheel 5; Minor sprocket 6 is fixed by socket on unilateral bearing 2.

As shown in Figure 4, in the present embodiment, two plastic spacers 3 are respectively the first plastic spacer 31 and the second plastic spacer 32.Clutch flange 4 has a through hole 41, extends a flange 42 in the bottom of clutch flange 4.Flange 42, the first plastic spacer 31, unilateral bearing 2 and the second plastic spacer 32 are stacked successively.One locking nut 7 also is housed in the through hole 41 of clutch flange 4, is used for the axle sleeve 51 of flywheel 5 and tight, prevent long-term the use after clutch can occur becoming flexible.

As shown in Figure 5, preferred, also set up a moment regulating device 8, moment regulating device 8 is comprised of a clutch compressing tablet 81, belleville spring 82 and regulating block 83; One clutch compressing tablet 81 is socketed on the clutch flange 4, is positioned at the top of the second plastic spacer 32; Regulating block 83 and belleville spring 82 are fixed on the axle sleeve 51 of flywheel 5; Belleville spring 82 is between regulating block 83 and clutch compressing tablet 81.During work, compress belleville spring 82 by regulating block 83, belleville spring 82 applies power in clutch compressing tablet 81, thus the clutch moment of control overrunning clutch, and different users can arrange according to self-demand the clutch moment of own needs.When clutch moment sets up into, the user need to apply a corresponding power clutch just can play clutch action.

As shown in Figure 8, preferred, have an adjustment hole 831 on the regulating block 83, in order to regulate clutch torque.

Preferably, have a protruding grain 43 on clutch flange 4 inwalls, have a groove 511 on the axle sleeve 51 of flywheel 5, clutch flange 4 is fixed on the axle sleeve 51 of flywheel 5 by protruding grain 43 and groove 511.Certainly, the means of fixation between clutch flange 4 and the axle sleeve 51 is a variety of in addition, does not repeat them here.

As shown in Figure 7, behind the employing such scheme, because overrunning clutch of the present utility model has been installed, in use, after minor sprocket 6 is transmitted in the axle sleeve 51 of unilateral bearing 2, clutch flange 4, flywheel 5 successively, axle core 52 rotations of flywheel driven 5, i.e. flywheel driven 5 rotations.After minor sprocket 6 stops operating, flywheel 5 is because inertia continues rotation, then axle core 52 is transmitted in axle sleeve 51, clutch flange 4 and unilateral bearing 2, because minor sprocket 6 stops operating, it is the pressure-acting that unilateral bearing 2 does not bear minor sprocket 6, unilateral bearing 2 single direction rotation only in situation about not stressing, other direction idle running, so can not drive minor sprocket 6 motions, avoided doing passive rotation with user's pin, like this, just can not injure user's pin, overcome the larger potential safety hazard of existence in the prior art.And moment can be according to different user adjusting size voluntarily, and the user only need apply a power that sets and just can avoid inertia with oneself motion.

Above-mentioned only is specific embodiment of the utility model, but design concept of the present utility model is not limited to this, allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.

Claims (5)

1. a body-building flywheel overrunning clutch is characterized in that: comprise a unilateral bearing, two plastic spacers and a clutch flange; Unilateral bearing and two plastic spacers are socketed on the clutch flange, and unilateral bearing is between two plastic spacers; Clutch flange is fixed on the axle sleeve of flywheel; Minor sprocket is fixed by socket on unilateral bearing.

2. a kind of body-building flywheel overrunning clutch as claimed in claim 1, it is characterized in that: also comprise a locking nut, clutch flange has a through hole, and locking nut is arranged in the through hole of clutch flange.

3. a kind of body-building flywheel overrunning clutch as claimed in claim 1, it is characterized in that: also set up a moment regulating device, moment regulating device is comprised of a clutch compressing tablet, belleville spring and regulating block; One clutch compressing tablet is socketed on the clutch flange, is positioned at the top of plastic spacer; Regulating block and belleville spring are fixed on the axle sleeve of flywheel, and belleville spring is between regulating block and clutch compressing tablet.

4. a kind of body-building flywheel overrunning clutch as claimed in claim 3 is characterized in that: have an adjustment hole on the regulating block.

5. a kind of body-building flywheel overrunning clutch as claimed in claim 1 is characterized in that: have a protruding grain on the clutch flange inwall, have a groove on the axle sleeve of flywheel, clutch flange is fixed on the axle sleeve of flywheel by protruding grain and groove.

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