CN214534151U

CN214534151U - Plate spring besides-star wheel retainer-free roller clutch

Info

Publication number: CN214534151U
Application number: CN202120638872.6U
Authority: CN
Inventors: 臧新群; 刘义; 毛振放; 蔡翔; 罗伟; 邵琳麒
Original assignee: Jiangsu Nanfang Bearing Co Ltd
Current assignee: Jiangsu Nanfang Precision Industry Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-10-29
Anticipated expiration: 2031-03-29

Abstract

The utility model relates to a leaf spring besides-star wheel does not have holder roller clutch, the coaxial fixed mounting leaf spring locating plate in both ends of the besides-star wheel, equal coaxial fixed mounting leaf spring on every leaf spring locating plate, fixed mounting spring finger on the leaf spring, a plurality of spring fingers are along the central axis circumference equipartition of leaf spring, set up spacing opening on the leaf spring locating plate, a plurality of spacing openings and a plurality of spring fingers of homonymy correspond the setting, the spring finger passes spacing opening after and contacts the setting with the roller, the spring finger at same roller both ends is located the homonymy of roller, two leaf springs are radially and circumferentially positioned on the besides-star wheel, two leaf springs are opposed, the spring finger is located the leaf spring radial inboard, can hold the most roller number, can hold the biggest roller length, the moment of torsion bearing capacity is big, be applicable to great roller length; during assembly, only two plate springs are needed to be fixed on two sides of the outer star wheel, so that the spring fingers can be located at positions corresponding to the rollers one by one, the assembly process is simplified, and the process cost is remarkably reduced.

Description

Plate spring besides-star wheel retainer-free roller clutch

Technical Field

The utility model belongs to the technical field of roller clutch technique and specifically relates to a leaf spring besides-star gear does not have holder roller clutch is related to.

Background

The overrunning clutch is a basic component which appears along with the development of mechatronics products, and is an important part for power transmission and separation functions between a prime mover and a working machine or between a driving shaft and a driven shaft in the machine. It is a device with self-clutch function by using speed change of driving and driven parts or change of rotation direction.

Chinese patent publication No. CN 207333499U discloses a roller self-supporting overrunning clutch, in which an outer star wheel is radially supported on an inner ring by a supporting roller to realize self-supporting of the overrunning clutch, but the number of spring leaves required is large, which results in tedious assembly and high process cost, and assembly errors are easily generated during assembly of a single spring leaf, resulting in poor service life and reliability.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the problems that an overrunning clutch in the prior art is complex in assembly and high in process cost, and a single spring piece is easy to have assembly errors during assembly, so that the service life and the reliability are poor, the plate spring besides-star wheel retainer-free roller clutch is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a leaf spring star gear does not have holder roller clutch, includes outer star gear and inner ring, the coaxial cover of outer star gear is established outside the inner ring, the circumference equipartition has a plurality of rollers between outer star gear and the inner ring, the equal coaxial fixed mounting in both ends of outer star gear has the leaf spring locating plate, every equal coaxial fixed mounting has the leaf spring on the leaf spring locating plate, fixed mounting has the spring to indicate on the leaf spring, and is a plurality of the spring indicates along the central axis circumference equipartition of leaf spring, set up spacing opening on the leaf spring locating plate, a plurality of homonymy spacing opening indicates to correspond the setting with a plurality of springs, the spring indicates to pass behind the spacing opening and sets up with the roller contact, and the spring at same roller both ends indicates to be located the homonymy of roller.

The utility model discloses a leaf spring besides-star wheel does not have holder roller clutch, at the coaxial fixed mounting leaf spring locating plate in the both ends of the wheel, equal coaxial fixed mounting leaf spring on every leaf spring locating plate, fixed mounting spring indicates on the leaf spring, a plurality of spring indicate along the central axis circumference equipartition of leaf spring, set up spacing opening on the leaf spring locating plate, a plurality of spacing openings and a plurality of spring of homonymy indicate to correspond the setting, the spring indicates to pass spacing opening after and contact the setting with the roller, the spring at same roller both ends indicates to be located the homonymy of roller, two leaf springs are radial and circumferential location are on the wheel, two leaf springs are the opposition, the spring indicates to be located the leaf spring radially inboard, can hold the most roller number, can hold the biggest roller length, the moment of torsion bearing capacity is big, be applicable to great roller length; during assembly, only two plate springs are needed to be fixed on two sides of the outer star wheel, so that the spring fingers can be located at positions corresponding to the rollers one by one, the assembly process is simplified, the process cost is obviously reduced, and the processing and assembly manufacturability is good; and the spring fingers are respectively fixed on the corresponding plate springs, so that the position of the spring fingers can not be loosened, and the service life and the reliability of the whole clutch are obviously improved.

Furthermore, the spring fingers at two ends of the same roller are arranged in a crossed mode, the two spring fingers arranged in a crossed mode can prolong the spring fingers, the elastic working interval of the spring fingers is increased, the service life of the spring fingers is prolonged, and double-point support is formed for the roller.

In order to facilitate the installation of the roller, the spring fingers at the two ends of the same roller are arranged in a mode of crossing inwards and outwards along the radial direction of the plate spring, the force of the two spring fingers arranged in a mode of crossing inwards and outwards along the radial direction of the plate spring on the roller is not located at the same height, the pushing force of the spring fingers on the roller can be influenced, in order to solve the problem, the spring fingers located on the inner side are fixedly provided with limiting pieces, the outer surfaces of the limiting pieces are overlapped with the outer surfaces of the spring fingers located on the outer side, and the acting forces of the two spring fingers on the roller are located at the same height.

For the convenience of installation, improve the utility model discloses an overall installation efficiency, the spring at same roller both ends indicates not cross arrangement.

In order to simplify the utility model discloses an overall structure improves the installation effectiveness, the spring indicates to be the arc.

Furthermore, the inner circumferential surface of the outer star wheel is provided with cam grooves, and the rollers are correspondingly clamped in the cam grooves one to one.

In order to realize that two leaf springs are fixed mounting respectively at the both ends of besides-star wheel, the equal coaxial card of having seted up in the both ends of besides-star wheel establishes the opening, two equal coaxial leaf spring baffle that is provided with in the opening is established to the card, the leaf spring baffle is located the outside of leaf spring, and two leaf spring baffles, two leaf spring locating plates and roller pass through rivet fixed connection, the roller can rotate on the rivet.

The utility model has the advantages that the utility model discloses a leaf spring outer star wheel does not have holder roller clutch, at the coaxial fixed mounting leaf spring locating plate in the both ends of outer star wheel, equal coaxial fixed mounting leaf spring on every leaf spring locating plate, fixed mounting spring indicates on the leaf spring, a plurality of spring indicates along the central axis circumference equipartition of leaf spring, set up spacing opening on the leaf spring locating plate, a plurality of spacing openings and a plurality of spring of homonymy indicate to correspond the setting, the spring indicates to pass spacing opening after and contact the setting with the roller, the spring at same roller both ends indicates to be located the homonymy of roller, two leaf springs are radially and circumferentially positioned on outer star wheel, two leaf springs are opposed, the spring indicates to be located the leaf spring radial inboard, can hold the most roller number, can hold the biggest roller length, the moment of torsion bearing capacity is big, be applicable to great roller length; during assembly, only two plate springs are needed to be fixed on two sides of the outer star wheel, so that the spring fingers can be located at positions corresponding to the rollers one by one, the assembly process is simplified, the process cost is obviously reduced, and the processing and assembly manufacturability is good; and the spring fingers are respectively fixed on the corresponding plate springs, so that the position of the spring fingers can not be loosened, and the service life and the reliability of the whole clutch are obviously improved.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a three-dimensional schematic diagram of embodiment 1 of the present invention;

fig. 2 is an exploded schematic view of embodiment 1 of the present invention;

fig. 3 is a front view of embodiment 1 of the present invention;

fig. 4 is a cross-sectional view taken at a-a of fig. 3 in accordance with the present invention;

fig. 5 is a cross-sectional view taken at B-B of fig. 4 in accordance with the present invention;

fig. 6 is a schematic three-dimensional assembly diagram of two plate springs in embodiment 1 of the present invention;

fig. 7 is a three-dimensional schematic view of a plate spring and a spring finger in embodiment 1 of the present invention;

fig. 8 is a three-dimensional schematic view of an outer star wheel in embodiment 1 of the present invention;

fig. 9 is a front view of a plate spring positioning plate according to embodiment 1 of the present invention;

fig. 10 is an exploded view of embodiment 2 of the present invention;

fig. 11 is a schematic three-dimensional assembly diagram of two leaf springs in embodiment 2 of the present invention.

In the figure: 1. the spring comprises an outer star wheel, 1-1 cam grooves, 1-2 clamping openings, 2 inner rings, 3 rollers, 4 leaf spring positioning plates, 4-1 limiting openings, 5 leaf springs, 6 spring fingers, 7 limiting pieces and 8 leaf spring baffle plates.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Example 1:

as shown in fig. 1 to 9, the plate spring outer star wheel retainer-free roller clutch includes an outer star wheel 1 and an inner ring 2, the outer star wheel 1 is coaxially sleeved outside the inner ring 2, 14 rollers 3 are uniformly distributed between the outer star wheel 1 and the inner ring 2 at the circumference, a cam groove 1-1 is formed on the inner circumferential surface of the outer star wheel 1, and the 14 rollers 3 are correspondingly clamped in the 14 cam grooves 1-1 one by one.

The equal coaxial fixed mounting in both ends of outer star gear 1 has leaf spring locating plate 4, and equal coaxial fixed mounting has leaf spring 5 on every leaf spring locating plate 4, and fixed mounting has the spring to indicate 6 on the leaf spring 5, and leaf spring 5 and spring indicate 6 manufacturing structure as an organic whole, and the spring indicates 6 to be the arc. The 14 spring fingers 6 are uniformly distributed along the circumference of the central axis of the plate spring 5, the plate spring positioning plate 4 is provided with a limiting opening 4-1, the 14 limiting openings 4-1 and the 14 spring fingers 6 on the same side are correspondingly arranged, the spring fingers 6 are arranged in a contact manner with the roller 3 after penetrating through the limiting openings 4-1, and the spring fingers 6 at the two ends of the same roller 3 are positioned on the same side of the roller 3.

Spring fingers 6 at two ends of the same roller 3 are arranged in a crossed mode inside and outside along the radial direction of the plate spring 5, the two spring fingers 6 arranged in a crossed mode can prolong the spring fingers 6, increase the elastic working interval of the spring fingers 6, prolong the service life of the spring fingers 6 and support the roller 3 in a double-point mode. However, the forces acting on the roller 3 by the two spring fingers 6 arranged to intersect inside and outside in the radial direction of the plate spring 5 are not at the same level, and affect the urging force of the spring fingers 6 against the roller 3, and in order to solve the above problem, a stopper piece 7 is fixedly attached to the spring finger 6 located inside, the stopper piece 7 and the spring finger 6 are integrally manufactured, and the outer surface of the stopper piece 7 overlaps with the outer surface of the spring finger 6 located outside, so that the urging forces acting on the roller 3 by the two spring fingers 6 are at the same level.

In order to realize that the two plate springs 5 are respectively and fixedly arranged at two ends of the outer star wheel 1, the clamping openings 1-2 are coaxially formed in the two ends of the outer star wheel 1, the plate spring baffle plates 8 are coaxially arranged in the two clamping openings 1-2, the plate spring baffle plates 8 are positioned on the outer sides of the plate springs 5, the two plate spring baffle plates 8, the two plate spring positioning plates 4 and the rollers 3 are fixedly connected through rivets, and the rollers 3 can rotate on the rivets.

The utility model discloses a leaf spring 5 besides-star wheel 1 does not have retainer roller 3 clutch, at the coaxial fixed mounting leaf spring locating plate 4 in the both ends of the outside-star wheel 1, equal coaxial fixed mounting leaf spring 5 on every leaf spring locating plate 4, fixed mounting spring finger 6 on leaf spring 5, a plurality of spring fingers 6 along the central axis circumference equipartition of leaf spring 5, set up spacing opening 4-1 on leaf spring locating plate 4, a plurality of spacing opening 4-1 and a plurality of spring finger 6 of homonymy set up correspondingly, spring finger 6 passes spacing opening 4-1 and contacts with roller 3 and sets up, the spring finger 6 at the same roller 3 both ends is located the homonymy of roller 3, two leaf springs 5 radially and circumference location are on outside-star wheel 1, two leaf springs 5 are oppositing, spring finger 6 is located leaf spring 5 radial inboard, can hold the most roller 3 number, can hold the biggest roller 3 length, the moment of torsion bearing capacity is big, for larger roller 3 lengths; during assembly, the two plate springs 5 are fixed on two sides of the outer star wheel 1, so that the spring fingers 6 can be located at positions corresponding to the rollers 3 one by one, the assembly process is simplified, the process cost is remarkably reduced, and the processing and assembly manufacturability is good; and the spring fingers 6 are respectively fixed on the corresponding plate springs 5, so that the position of the spring fingers 6 can be ensured not to be loosened, and the service life and the reliability of the whole clutch are obviously improved.

Example 2:

example 2, as shown in fig. 10-11, differs from example 1 only in that: in order to facilitate the installation, improve the utility model discloses an overall installation efficiency, the spring at same roller 3 both ends indicates 6 non-intersecting sets.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a leaf spring besides-star gear does not have holder roller clutch, includes besides-star gear (1) and inner ring (2), the coaxial cover of distinguished and admirable wheel (1) is established outside inner ring (2), the circumference equipartition has a plurality of rollers (3), its characterized in that between distinguished and admirable wheel (1) and inner ring (2): the equal coaxial fixed mounting in both ends of outer star gear (1) has leaf spring locating plate (4), every equal coaxial fixed mounting has leaf spring (5) on leaf spring locating plate (4), fixed mounting has the spring to indicate (6) on leaf spring (5), and is a plurality of the spring indicates (6) along the central axis circumference equipartition of leaf spring (5), spacing opening (4-1) has been seted up on leaf spring locating plate (4), and is a plurality of homonymy spacing opening (4-1) indicate (6) to correspond the setting with a plurality of springs, the spring indicates (6) to pass behind spacing opening (4-1) and contact the setting with roller (3), and the spring at same roller (3) both ends indicates (6) to be located the homonymy of roller (3).

2. The leaf spring besides-star cageless roller clutch of claim 1, wherein: the spring fingers (6) at two ends of the same roller (3) are arranged in a crossed manner.

3. The leaf spring besides-star cageless roller clutch of claim 2, wherein: spring fingers (6) at two ends of the same roller (3) are arranged in a crossed mode in the radial direction of a plate spring (5), a limiting piece (7) is fixedly mounted on the spring finger (6) on the inner side, and the outer surface of the limiting piece (7) coincides with the outer surface of the spring finger (6) on the outer side.

4. The leaf spring besides-star cageless roller clutch of claim 1, wherein: the spring fingers (6) at the two ends of the same roller (3) are not arranged in a crossed way.

5. The leaf spring besides-star cageless roller clutch of claim 1, wherein: the spring finger (6) is arc-shaped.

6. The leaf spring besides-star cageless roller clutch of claim 1, wherein: the inner circumferential surface of the outer star wheel (1) is provided with cam grooves (1-1), and the rollers (3) are correspondingly clamped in the cam grooves (1-1) one by one.

7. The leaf spring besides-star cageless roller clutch of claim 1, wherein: the outer star wheel (1) is provided with clamping openings (1-2) at two ends coaxially, plate spring baffles (8) are coaxially arranged in the clamping openings (1-2), the plate spring baffles (8) are located on the outer sides of the plate springs (5), the two plate spring baffles (8), the two plate spring positioning plates (4) and the rollers (3) are fixedly connected through rivets, and the rollers (3) can rotate on the rivets.