CN215567221U

CN215567221U - Novel eccentric shaft

Info

Publication number: CN215567221U
Application number: CN202122124499.5U
Authority: CN
Inventors: 苏裕琪
Original assignee: Ningbo Shengding Sewing Machinery And Equipment Co ltd
Current assignee: Ningbo Shengding Sewing Machinery And Equipment Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-18
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a novel eccentric shaft, which relates to the field of eccentric shafts and comprises a base, wherein a rotating connecting shaft is fixedly arranged on the base, a supporting seat is fixedly arranged at the top side of the rotating connecting shaft, a supporting shaft is fixedly arranged at the top side of the rotating connecting shaft, an eccentric workbench is fixedly arranged on the supporting seat, two eccentric blocks are fixedly arranged at the top side of the eccentric workbench, the two eccentric blocks are symmetrical, a circular hole is formed in the top side of the eccentric workbench, a circular platform groove is annularly formed in the inner wall of the top side of the circular hole, a central hole is formed in the inner wall of the bottom side of the circular hole, and arc-shaped grooves are formed in one side, close to each other, of the two eccentric blocks. According to the utility model, through the arrangement of the eccentric blocks, when the eccentric shaft is used, the vertical lines made by the maximum edge and the minimum edge are spliced to form an eccentric angle of 16 degrees through the adjustment of the two eccentric blocks, so that the purposes of small swing and low noise are achieved, and the two eccentric blocks have double eccentricity, so that the stability of wire passing is ensured.

Description

Novel eccentric shaft

Technical Field

The utility model relates to the technical field of eccentric shafts, in particular to a novel eccentric shaft.

Background

The eccentric shaft is generally fixed on a motor rotating shaft through an eccentric hole and performs cam motion when the motor is started, so that the eccentric shaft is widely applied to automobiles, engines, pumps and the like.

Among the prior art, need use the eccentric shaft among the industrial sewing machine work feed mechanism rotating device, present like product uses the eccentric angle of axle position to fix a position as the benchmark, and the eccentric angle of axle position is inaccurate, leads to the eccentricity not enough easily, and the swing is great, and the noise is higher simultaneously, and the sewing thread also is difficult to pass, consequently needs a novel eccentric shaft to satisfy people's demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel eccentric shaft to solve the problems of insufficient eccentric distance, large swing, high noise and difficult sewing thread passing in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel eccentric shaft, the on-line screen storage device comprises a base, fixed mounting has the rotation connecting axle on the base, and the top side fixed mounting who rotates the top side fixed mounting of connecting axle has the top side fixed mounting of back shaft to have a supporting seat, and fixed mounting has eccentric workstation on the supporting seat, and eccentric workstation's top side fixed mounting has two eccentric blocks, and two eccentric blocks are symmetrical, the circular port has been seted up on eccentric workstation's top side, and the circular platform groove has been seted up to the ring shape on the top side inner wall of circular port, has seted up the centre bore on the bottom side inner wall of circular port, two the arc wall has all been seted up to one side that the eccentric block is close to each other.

Preferably, an eccentric fixing hole is formed in the top side of one eccentric block, and the eccentric fixing hole is located in the center of the eccentric block.

Preferably, four mounting grooves are formed in the top side of the eccentric workbench, and two mounting grooves on the same side are respectively located on two sides of the eccentric block.

Preferably, an external connecting groove is formed in the top side of the eccentric workbench and is located on the outer side of the top end of the eccentric workbench.

Preferably, the eccentric workbench is fixedly sleeved with a fixed sleeve, and the fixed sleeve is positioned at the bottom side of the eccentric workbench.

Preferably, the bottom side of the base is provided with a base hole, and the base hole is positioned at the center of the bottom side of the base.

Preferably, the side surface of the base is provided with a base side open groove, and the base side open groove is positioned on the arc-shaped surface of the base.

The utility model has the beneficial effects that:

according to the utility model, through the arrangement of the eccentric blocks, when the eccentric shaft is used, the vertical lines made by the maximum edge and the minimum edge are spliced to form an eccentric angle of 16 degrees through the adjustment of the two eccentric blocks, so that the purposes of small swing and low noise are achieved, and the two eccentric blocks have double eccentricity, so that the stability of wire passing is ensured.

According to the eccentric shaft mounting device, due to the arrangement of the base, when the eccentric shaft is mounted, the whole mounting can be rapidly completed through the base, so that the practicability of the eccentric shaft is improved.

Drawings

FIG. 1 is a schematic perspective view of a novel eccentric shaft according to the present invention;

FIG. 2 is a schematic view of a partial structure of a novel eccentric shaft according to the present invention;

FIG. 3 is a schematic top view of the eccentric shaft according to the present invention;

fig. 4 is a schematic structural diagram of a base portion of the novel eccentric shaft according to the present invention.

In the figure: 1. a base; 2. rotating the connecting shaft; 3. a support shaft; 4. a supporting seat; 5. an eccentric work table; 6. an eccentric block; 7. a circular hole; 8. mounting grooves; 9. fixing a sleeve; 10. a central bore; 11. an eccentric fixing hole; 12. an external connection groove; 13. a base hole; 14. slotting at the side of the base; 15. an arc-shaped slot; 16. a circular table groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a novel eccentric shaft comprises a base 1, a rotary connecting shaft 2 is fixedly installed on the base 1, a supporting seat 4 is fixedly installed on the top side of the rotary connecting shaft 2, a supporting shaft 3 is fixedly installed on the top side of the rotary connecting shaft 3, a supporting seat 5 is fixedly installed on the supporting seat 4, two eccentric blocks 6 are fixedly installed on the top side of the eccentric table 5, the two eccentric blocks 6 are symmetrical, a circular hole 7 is formed on the top side of the eccentric table 5, a circular table groove 16 is annularly formed on the inner wall of the top side of the circular hole 7, a central hole 10 is formed on the inner wall of the bottom side of the circular hole 7, arc grooves 15 are formed on the sides, close to each other, of the two eccentric blocks 6, when the eccentric shaft is used, the base 1 is driven by the outside to rotate, so that the base 1 drives the rotary connecting shaft 2 to rotate, the rotary connecting shaft 2 drives the supporting shaft 3 to rotate, the rotary supporting shaft 3 drives the eccentric table 5 to rotate, make eccentric workstation 5 drive two eccentric blocks 6 and rotate, two pivoted eccentric blocks 6 can change the eccentric angle of the perpendicular line of making between the biggest limit and the minimum limit, make the eccentric shaft reach the effect of eccentric 16 degrees, behind two eccentric blocks 6 eccentric 16 degrees, make sewing machine cross the line time of can having one to wait for crossing the line, thereby guarantee the smoothness of crossing the line, and then make the swing of rotating shuttle reduce, the production of noise reduction, the effect of increase of service life has further been realized.

In the utility model, an eccentric fixing hole 11 is arranged on the top side of one eccentric block 6, the eccentric fixing hole 11 is positioned at the central position of the eccentric block 6, and when the rotating shuttle is installed on the eccentric block 6, the rotating shuttle is positioned through the eccentric fixing hole 11.

In the utility model, four mounting grooves 8 are arranged on the top side of the eccentric workbench 5, two mounting grooves 8 positioned on the same side are respectively positioned on two sides of the eccentric block 6, and the rotating shuttle is mounted on the eccentric workbench 5 through the matching of the four mounting grooves 8.

In the utility model, the top side of the eccentric workbench 5 is provided with the external groove 12, the external groove 12 is positioned at the outer side of the top end of the eccentric workbench 5, and other equipment is buckled on the eccentric workbench 5 through the external groove 12.

In the utility model, the eccentric workbench 5 is fixedly sleeved with the fixed sleeve 9, the fixed sleeve 9 is positioned at the bottom side of the eccentric workbench 5, and the fixed sleeve 9 can be used as a limiting device on the eccentric workbench 5 when the eccentric wheel is installed on other equipment.

In the utility model, the bottom side of the base 1 is provided with a base hole 13, the base hole 13 is positioned at the center position of the bottom side of the base 1, and the base 1 is positioned through the base hole 13 when being installed on other equipment.

In the utility model, the side surface of the base 1 is provided with the base side open slot 14, the base side open slot 14 is positioned on the arc surface of the base 1, and the base side open slot 14 prevents shaking while driving the base 1 to rotate.

The working principle of the utility model is as follows:

when using the eccentric shaft, base 1 receives external drive and rotates, make base 1 drive and rotate connecting axle 2 and rotate, pivoted rotation connecting axle 2 drives back shaft 3 and rotates, pivoted back shaft 3 drives eccentric table 5 and rotates, make eccentric table 5 drive two eccentric blocks 6 and rotate, two pivoted eccentric blocks 6 can change the eccentric angle of the perpendicular line of doing between the biggest limit and the minimum limit, make the eccentric shaft reach the effect of 16 degrees eccentricities, behind two eccentric blocks 6 eccentric 16 degrees, make the sewing machine can have a time of waiting for crossing the line when crossing the line, thereby guarantee the smoothness of crossing the line, and then make the swing of rotating shuttle reduce, the production of noise reduction, further realized increase of service life's effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a novel eccentric shaft, includes base (1), its characterized in that: fixed mounting has rotation connecting axle (2) on base (1), and the top side fixed mounting who rotates connecting axle (2) has back shaft (3) has supporting seat (4), and fixed mounting has eccentric workstation (5) on supporting seat (4), and the top side fixed mounting of eccentric workstation (5) has two eccentric blocks (6), and two eccentric blocks (6) are symmetrical, circular port (7) have been seted up to the top side of eccentric workstation (5), and circular platform groove (16) have been seted up to the ring shape on the top side inner wall of circular port (7), have seted up centre bore (10) on the bottom side inner wall of circular port (7), two arc wall (15) have all been seted up to one side that eccentric block (6) are close to each other.

2. A new eccentric shaft according to claim 1, characterized in that: the top side of one eccentric block (6) is provided with an eccentric fixing hole (11), and the eccentric fixing hole (11) is positioned at the center of the eccentric block (6).

3. A new eccentric shaft according to claim 1, characterized in that: four mounting grooves (8) are formed in the top side of the eccentric workbench (5), and the two mounting grooves (8) located on the same side are located on two sides of the eccentric block (6) respectively.

4. A new eccentric shaft according to claim 1, characterized in that: an external connecting groove (12) is formed in the top side of the eccentric workbench (5), and the external connecting groove (12) is located on the outer side of the top end of the eccentric workbench (5).

5. A new eccentric shaft according to claim 1, characterized in that: the eccentric workbench (5) is fixedly sleeved with a fixed sleeve (9), and the fixed sleeve (9) is positioned at the bottom side of the eccentric workbench (5).

6. A new eccentric shaft according to claim 1, characterized in that: a base hole (13) is formed in the bottom side of the base (1), and the base hole (13) is located in the center of the bottom side of the base (1).

7. A new eccentric shaft according to claim 1, characterized in that: a base side open groove (14) is formed in the side face of the base (1), and the base side open groove (14) is located on the arc-shaped face of the base (1).