CN203670546U

CN203670546U - Pin roller type overrunning clutch with double-groove mutually-clamped type one-way positioning pin rollers

Info

Publication number: CN203670546U
Application number: CN201320607258.9U
Authority: CN
Inventors: 李海龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-22
Filing date: 2013-09-22
Publication date: 2014-06-25
Anticipated expiration: 2023-09-22

Abstract

The utility model relates to a pin roller type overrunning clutch with double-groove mutually-clamped type one-way positioning pin rollers. The pin roller type overrunning clutch comprises an outer ring, a groove in the outer ring, an inner ring, a groove in the inner ring, the pin rollers, a lantern ring and a one-way positioning device combined with the lantern ring together. According to the pin roller type overrunning clutch, the pin rollers are positioned through the one-way positioning device on the lantern ring so that the pin rollers can be positioned in the groove in the inner ring and the groove in the outer ring and can be mutually clamped through the inner ring and the outer ring, and therefore the inner ring and the outer ring are separated or combined. The pin roller type overrunning clutch is mainly applied to second-level turbine transmission of a loader and holdback machines of various mechanical devices. The pin roller type overrunning clutch is reliably and automatically locked and conveniently unlocked; the longer the pin roller type overrunning clutch is used, the larger the transmission torque is and the more durable the pin roller type overrunning clutch is.

Description

Double flute is the unidirectional positioning roller roller-type overrunning clutch of card mutually

Technical field

The utility model relates to a kind of free wheel device, is specifically related to a kind of groove designing on Internal and external cycle that utilizes and blocks roller mutually and reach the combination of free wheel device and a kind of roller-type overrunning clutch separating.

Background technique

At present, at conventional free wheel device, have be divided into roller type, wedge block type, ratchet-type, gear type etc., roller type, wedge block type planet wheel in the course of the work, roller, voussoir, raceway contact plane be all subject to very large extrusion stress, these parts are using after a period of time, easily there is wearing and tearing and plastic deformation in its surface of contact, damage thereby cause free wheel device to lose efficacy, ratchet-type, gear type can not bear very large moment of torsion because of its structural feature.

The shortcoming of prior art is; Area of contact roller type, wedge block type, roller, voussoir and raceway in cohesive process due to roller and voussoir is little, thereby causes its surface of contact short time content to be prone to wearing and tearing and plastic deformation, and causes the operational failure of clutch.

Model utility content

The utility model double flute is the object of the unidirectional positioning roller roller-type overrunning clutch of card mutually, the technical problem solving is to the deficiency occurring in prior art, and provide a kind of under the working condition of high speed, low speed, high pulling torque, use a kind of simple in structure durable, non-slip, use free wheel device reliable, that the life-span is long.

The utility model double flute mutually unidirectional positioning roller roller-type overrunning clutch of card is specifically made up of outer ring 1, roller 2, inner ring 3, spacer ring 4, ratchet 5, as shown in Figure 2

On described outer ring 1, be designed with the groove being arranged symmetrically with, the width of groove is the deep mixed sample of the degree of depth of the above and groove of the twice of roller 2 diameters or twice, A, B position as shown in Figure 2, as shown in Figure 2.

The corresponding roller of the mutually same groove of quantity of described roller 2 and outer ring upper groove.

On described inner ring 3, be designed with the groove C being arranged symmetrically with, and the groove of the position of groove on outer ring is relative, C position as shown in Figure 2.

On described spacer ring 4, be designed with the roller barrier groove identical with outer ring upper groove number, on a side inner ring of spacer ring, be designed with the pawl slot D identical with outer ring groove number, D position as shown in Figure 2.

Described ratchet 5, is designed with ratchet 5 corresponding the obtaining on position in side outside of inner ring 3, as shown in Figure 2.

Feature of the present utility model is a side shallow when the groove on outer ring in the working procedure that free wheel device is engaging and inner ring groove clamping roller, the parts of active rotation utilize groove clamping roller to drive passive parts to rotate, the structure of so mutual card makes to there will not be and skid between inner ring and outer ring, and can transmit very large moment of torsion, and using in the situation that more of a specified duration with the groove of roller-contact, it is tightr in the using process engaging, the moment of torsion of transmission more greatly, more durable in use.

Accompanying drawing explanation

Fig. 1 is the utility model free wheel device sectional view used while being applied to loader double-stage turbine gearbox.

Fig. 2 is the utility model fundamental diagram, and the structural drawing of outer ring, outer ring groove, roller, inner ring, inner ring groove, spacer ring, spacer ring pawl slot, ratchet.

Fig. 3 is the axial sectional view of the utility model and ball bearing combination.

Fig. 4 is pawl slot structural drawing on the spacer ring of the utility model while being low speed free wheel device and spacer ring, the key plan of ratchet.

Fig. 5 is pawl slot structural drawing on the spacer ring meter spacer ring of the utility model while being high speed free wheel device, the key plan of ratchet.

Fig. 6 is that the utility model is the spacer ring ratchet structural drawing in when combination.

Fig. 7, Fig. 8 are that the utility model free wheel device engages and mask work principle schematic.

Embodiment

When claimant moves in deep mixed groove according to roller, roller is to change apart from the distance at the center of outer ring, and designs as shown in Figure 2 deep mixed A, B position on outer ring groove and groove.

If claimant according to the concentric inner ring in outer ring on design groove, and inner ring bottom portion of groove is just in time the diameter of ball to the distance of the shallow side of outer ring bottom portion of groove, in the time that roller moves in the outer ring groove as above [0016] described, when roller moves in the groove that a side that outer ring groove is shallow moves to again inner ring simultaneously, outer ring and inner ring can form unidirectional mutual card, and on inner ring 3, design groove C.

If claimant is according to the pawl slot of designing equal angular on ratchet, and ratchet can make ratchet be parked on the inner ring that ratchet is installed and synchronize and rotate with angle while working in pawl slot.

The working principle of the utility model free wheel device: as shown in Figure 2, when inner ring 3 is power source master driver, when outer ring 1 is passive driving component, inner ring 3 up times are rotated, ratchet 5 on inner ring 3 drives spacer ring 4 to rotate, roller fence on spacer ring drives roller 2 to rotate, while moving to the position A of shallow place by depth location B in the groove of roller 2 on outer ring 1 simultaneously, roller 2 moves to inner ring groove C along spacer ring roller fence simultaneously, in the time that roller moves to groove A place, outer ring, roller 2 moves to inner ring groove C place equally, now Internal and external cycle forms mutual card as shown in Figure 2, inner ring 3 just can drive passive outer ring 1 to turn round.In the time that outer ring 1 rotating speed exceedes inner ring 3 rotating speed, roller 2 moves to groove B place, outer ring along 1 groove inclined-plane, outer ring under the effect of centrifugal force, roller 2 utilizes spacer ring roller fence to drive spacer ring 4 to rotate simultaneously, now ratchet 5 separates with the pawl slot D on spacer ring, as shown in Figure 2, thereby the separation that reaches free wheel device with engage, as shown in Figure 2.

As shown in Figure 2, when outer ring 1 is power source master driver, when inner ring 3 is passive driving component, 1 inverse time of outer ring rotates, inner ring 3 is motionless, ratchet 5 on inner ring drives spacer ring motionless, and the roller fence on spacer ring drives roller 2 motionless, and rotate outer ring 1, the groove of roller on outer ring moves to A place, position by B place, position, in the time that roller 2 moves to groove A place, outer ring, roller 2 moves to inner ring groove C place equally, and now Internal and external cycle forms mutual card as shown in Figure 2, and outer ring 1 just can drive passive inner ring 3 to turn round.In the time that inner ring rotating speed exceedes outer ring rotating speed, roller 2 moves to groove B place, outer ring along groove inclined-plane, outer ring under the effect of centrifugal force, roller 2 utilizes spacer ring roller fence to drive spacer ring 4 to rotate simultaneously, now ratchet 5 separates with the pawl slot D on spacer ring, as shown in Figure 2, thereby the separation that reaches free wheel device with engage, as shown in Figure 2.

In the time that the utility model is low speed free wheel device, spacer ring, ratchet use as shown in Figure 4 this just can, working principle is as the working principle of bicycle freewheel.

In the time that the utility model is high speed free wheel device, spacer ring, ratchet use as shown in Figure 5,6 this, ratchet 5 return springs calculate return spring and want compressed pressure surmounting the centrifugal force producing when rotating speed is greater than rated speed according to rated speed, the rocking arm that surmounts rotating speed and ratchet 5, make the rocking arm of ratchet surmount the centrifugal force energy Compress Spring of rotating speed, make the compressed pressure of spring be a bit larger tham the centrifugal force of rated speed lower shake-changing arm generation and be less than the centrifugal force that surmounts the generation of rotating speed rocking arm.Working principle: as shown in Figure 5, outer ring is that master driver inner ring is while being transmission part, free wheel device turns round under rated speed, rocking arm ratchet is worked in spacer ring pawl slot, Internal and external cycle, roller blocks mutually, in the time that inner ring rotating speed exceedes outer ring rated speed, roller 2 is under the effect of centrifugal force, move to groove B place, outer ring along groove inclined-plane, outer ring, roller 2 utilizes spacer ring roller fence to drive spacer ring 4 to rotate simultaneously, now ratchet 5 separates with the pawl slot D on spacer ring, inner ring rotating speed continues to strengthen, rocking arm ratchet centrifugal force strengthens, rocking arm reversion Compress Spring, rocking arm ratchet departs from the pawl slot on spacer ring, inner ring is turned round surmounting under rotating speed, inner ring separates with outer ring, the contactless lower running of spacer ring and ratchet,

The utility model is owing to adopting double flute to block mutually roller, and make Internal and external cycle in joint, can not have skidding, and transmit very large moment of torsion, in actual using process, in the time of free wheel device Internal and external cycle mask work, Internal and external cycle speed discrepancy can be very not large, and the time of combination want score from time long a lot, so adopt wear-resisting, impact-resistant steel to make spacer ring and ratchet, will make this free wheel device durable in use, unidirectional self-lock is reliable, oppositely frees light.

The fields such as it is wide that the utility model is applicable to mechanical range, the non-return device, package packing machine, printing machinery, farm machinery, food processing machinery, various noria, belt conveyor in free wheel device, various machinery that the transmission of loader two-stage turbine is used.

Claims

1. a double flute unidirectional positioning roller roller-type overrunning clutch of card mutually, include outer ring, inner ring, roller, spacer ring, on described outer ring, be evenly equipped with the groove identical with roller quantity, on inner ring, be evenly equipped with the groove identical with roller quantity, on spacer ring, be furnished with the fence identical with roller quantity, between spacer ring and inner ring, one-way positioning device is installed, it is characterized in that: described outer ring groove, inner ring groove are mutually corresponding, roller can swing in the groove of outer ring, spacer ring is between inner ring and outer ring, and spacer ring can one-way rotation with respect to inner ring.

2. according to the claim 1 double flute unidirectional positioning roller roller-type overrunning clutch of card mutually, described outer ring groove and inner ring groove, it is characterized in that: outer ring groove is for adding wide groove, inner ring groove is narrow groove, the width that adds wide groove is not less than the twice of roller diameter, add wide groove depth difference, in the time that roller swings in wide groove, roller can change to the distance at Internal and external cycle center, roller is in the time of a dark side, in roller arrives, the distance at center, outer ring is greater than the radius of inner ring, roller with inner ring without any contacting, roller is in the time of a shallow side, in roller arrives, the distance at center, outer ring is less than the radius of inner ring, roller can stick in inner ring groove.

3. according to the claim 1 double flute unidirectional positioning roller roller-type overrunning clutch of card mutually, described spacer ring, inner ring and positioning device, it is characterized in that: spacer ring can equidirectionally rotate with respect to inner ring, spacer ring is during with respect to inner ring reverse rotation, positioning device stops spacer ring to rotate, spacer ring is state of rest with respect to inner ring, and on spacer ring, roller fence hole site aligns the groove on inner ring simultaneously.