CN218688257U

CN218688257U - Stirring structure with anti-drop function

Info

Publication number: CN218688257U
Application number: CN202222787577.4U
Authority: CN
Inventors: 张宝财
Original assignee: Honggong Technology Co ltd
Current assignee: Honggong Technology Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-03-24
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses a stirring structure with anti-drop function, which comprises a stirring paddle, a taper sleeve, a stop washer and a screw; the hole wall of the central hole of the stirring paddle is of a conical curved surface structure, the outer curved surface of the taper sleeve is also of a conical curved surface structure, and the hole wall of the central hole is embedded with the outer curved surface of the taper sleeve; the taper sleeve is provided with at least one fracture groove extending along the axial direction so as to split the taper sleeve into an open-loop structure; the screw is axially arranged in the taper sleeve and the stirring paddle in a penetrating manner along the stirring paddle and is used for driving the taper sleeve and the stirring paddle to carry out axial mutual extrusion so as to force the diameter of the inner hole of the taper sleeve to be reduced; the head of the screw on the stop washer is mutually fastened with the taper sleeve or the head of the screw on the stop washer is mutually fastened with the stirring paddle; the flap of the stop washer is bent to abut against the head of the screw to prevent the screw from rotating. It can strengthen the connection stability of screw to avoid a series of drawbacks because of the screw is not hard up and brings.

Description

Stirring structure with anti-drop function

Technical Field

The utility model relates to a stirring technical field especially relates to a stirring structure with anti-drop function.

Background

The stirring rake can be used for stirring the powder material, and in order to make the mounted position of stirring rake adjustable, the (mixing) shaft can set up to the optical axis, and after the stirring rake cup jointed the optical axis, can to the optical axis through radial extrusion force locking. Traditional stirring rake need accomplish through a plurality of screws that the axial between stirring rake and the taper sleeve is spacing, fixed, makes the stirring rake encircle the optical axis with the help of the taper sleeve simultaneously. However, because the screw is exposed, there is a risk of loosening, when the screw falls into the stirring cavity, not only may the important part of the stirrer be worn, but also more seriously, the metal debris produced by the wear may pollute the material, and further cause a huge loss.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a stirring structure with anti-drop function, it can strengthen the connection stability of screw to avoid a series of drawbacks brought because of the screw is not hard up.

The purpose of the utility model is realized by adopting the following technical scheme:

a stirring structure with an anti-falling function comprises a stirring paddle, a taper sleeve, a stop washer and a screw; the hole wall of the central hole of the stirring paddle is of a conical curved surface structure, the outer curved surface of the taper sleeve is of a conical curved surface structure, and the hole wall of the central hole is embedded with the outer curved surface of the taper sleeve; the taper sleeve is provided with at least one fracture groove extending along the axial direction so as to split the taper sleeve into an open-loop structure; the screw penetrates through the taper sleeve and the stirring paddle along the axial direction of the stirring paddle and is used for driving the taper sleeve and the stirring paddle to carry out axial mutual extrusion so as to force the diameter of an inner hole of the taper sleeve to be reduced; the head of the screw and the taper sleeve are mutually fastened by the stop washer or the head of the screw and the stirring paddle are mutually fastened by the stop washer; the tabs of the stop washer are bent to abut the head of the screw to prevent rotation of the screw.

Further, one of the taper sleeve and the stirring paddle is provided with a unthreaded hole, and the other is provided with a threaded hole; the screw rod of screw wear to locate the unthreaded hole, just keep away from on the screw the one end of head with threaded connection carries out threaded connection.

Further, the stirring paddle comprises a disc-shaped stirring main body and a fixing ring, wherein the disc-shaped stirring main body is fixedly sleeved outside the fixing ring and is coaxially arranged with the fixing ring; the central hole is formed in the fixing ring; and the unthreaded hole or the threaded hole is arranged on the fixing ring.

Further, the disc-shaped stirring main body and the fixing ring are connected through screws; the shaft sleeve is provided with an axial avoiding hole, and the screw is accommodated in the axial avoiding hole.

Further, a plurality of stirring sheets are formed at the outer edge of the disc-shaped stirring main body, and the directions of the adjacent two stirring sheets are opposite.

Further, the direction of the head of the screw pointing to the screw rod of the screw is the same as the direction of the large end of the central hole pointing to the small end of the central hole.

Furthermore, a plurality of screws are arranged around the stirring paddle at intervals in the circumferential direction; the stop washer is provided with a plurality of stop washers, each stop washer is correspondingly connected with one of the screws, or the stop washers are arranged coaxially with the stirring paddle and provided with a plurality of folding pieces, and the folding pieces are correspondingly abutted against one of the screws.

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

the hole wall through the centre bore of stirring rake and the mode of the outer curved surface gomphosis of taper sleeve, and the cooperation taper sleeve is the open loop structure to make a stirring structure with anti-drop function can fix the optional position at the optical axis, the mounted position is more nimble. Based on this, carry out axial mutual extrusion with taper sleeve and stirring rake through the screw to can guarantee effectively that the taper sleeve holds tightly the optical axis. At this time, importantly, the folding piece of the stop washer is bent to abut against the head of the screw to prevent the screw from rotating, so that the connection stability of the screw is improved on the basis of realizing the stable connection of the stirring paddle and the taper sleeve, and a series of defects caused by the loosening of the screw are avoided.

Drawings

Fig. 1 is a schematic structural view of a stirring structure with an anti-falling function according to the present invention;

fig. 2 is a cross-sectional view of fig. 1.

In the figure: 1. a stirring paddle; 11. a disk-shaped stirring body; 111. a stirring sheet; 12. a fixing ring; 121. a central bore; 122. a threaded hole; 2. a taper sleeve; 21. a breaking groove; 22. a light hole; 23. axial avoidance holes; 3. a stop washer; 31. folding a sheet; 4. a screw; 41. a head portion; 42. a screw; 5. and (4) screws.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used herein, "vertical," "horizontal," "left," "right," and similar expressions are for purposes of illustration only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1-2 show a stirring structure with an anti-dropping function according to a preferred embodiment of the present invention, which includes a stirring paddle 1, a taper sleeve 2, a stop washer 3 and a screw 4. The hole wall of the central hole 121 of the stirring paddle 1 is in a conical curved surface structure, the outer curved surface of the taper sleeve 2 is also in a conical curved surface structure, and the hole wall of the central hole 121 is embedded with the outer curved surface of the taper sleeve 2. The taper sleeve 2 is provided with at least one fracture groove 21 extending along the axial direction so as to split the taper sleeve 2 into an open ring structure; as the taper sleeve 2 and the paddle 1 are gradually fitted to each other, the outer curved surface of the taper sleeve 2 and the inner hole of the taper sleeve 2 are gradually reduced. Essentially, the screw 4 axially penetrates through the taper sleeve 2 and the stirring paddle 1 along the stirring paddle 1, and is used for driving the taper sleeve 2 and the stirring paddle 1 to axially extrude each other, so as to force the diameter of the inner hole of the taper sleeve 2 to be reduced, and the taper sleeve 2 tightly holds the optical axis (the optical axis is a rotary power shaft). Thus, the taper sleeve 2 can hold the optical axis at an arbitrary position of the optical axis. Importantly, the stop washer 3 is tightened by the head 41 of the screw 4 and the taper sleeve 2 or by the head 41 of the screw 4 and the stirring paddle 1; that is, the head 41 of the screw 4 may be closer to the paddle 1 or may be closer to the cone 2, and both of these mounting manners are possible. The flap 31 of the stop washer 3 is bent to abut against the head 41 of the screw 4 to prevent the screw 4 from turning. Set up like this, carry out the locking through lock washer 3 to screw 4 to make screw 4 be difficult to drop, on the basis that realizes stirring rake 1 and taper sleeve 2 stable connection promptly, improved screw 4's connection stability, thereby avoid because of a series of drawbacks that screw 4 is not hard up and brings.

Obviously, the hole wall of the central hole 121 of the stirring paddle 1 is embedded with the outer curved surface of the taper sleeve 2, and the taper sleeve 2 is matched to be of an open-loop structure, so that the stirring structure with the anti-falling function can be fixed at any position of the optical axis, and the installation position is more flexible. Based on this, carry out axial mutual extrusion with taper sleeve 2 and stirring rake 1 through screw 4 to can guarantee effectively that taper sleeve 2 holds tightly to the optical axis. At this time, it is important to prevent the rotation of the screw 4 by bending the folded piece 31 of the stopper washer 3 to abut against the head 41 of the screw 4, so that the connection stability of the screw 4 is improved while the stable connection of the paddle 1 and the cone 2 is realized, thereby avoiding a series of disadvantages caused by the loosening of the screw 4.

Preferably, one of the taper sleeve 2 and the stirring paddle 1 is provided with a unthreaded hole 22, and the other is provided with a threaded hole 122; the screw rod 42 of the screw 4 is inserted into the unthreaded hole 22, and one end of the screw 4 away from the head 41 is in threaded connection with the threaded hole 122. With this arrangement, the screw rod 42 does not need to be provided with a nut, and therefore the same problem caused by unstable nut attachment does not occur. That is, as an alternative arrangement, the screw 4 may be a bolt assembly, but it is preferable to improve the nut so that the nut has a function of preventing falling.

Preferably, in order to facilitate the manufacturing of the stirring paddle 1, the stirring paddle 1 comprises a disk-shaped stirring main body 11 and a fixing ring 12, wherein the disk-shaped stirring main body 11 is fixedly sleeved outside the fixing ring 12 and is coaxially arranged; the center hole 121 is provided in the fixing ring 12; and, the unthreaded hole 22 or the threaded hole 122 is provided in the fixed ring 12. With the arrangement, the drilling work is mainly accumulated on the disc-shaped stirring main body 11, namely, the whole manufacturing difficulty is reduced by the split manufacturing mode of the stirring paddle 1.

Preferably, the connection between the disk-shaped stirring body 11 and the fixed ring 12 is made by means of screws 5; the shaft sleeve is provided with an axial avoiding hole 23, and the screw 5 is accommodated in the axial avoiding hole 23. With the arrangement, the screw 5 is hidden and is not easy to fall off. It will be appreciated that, as an alternative connection, the disc-shaped stirring body 11 and the fixing ring 12 can be fixed by welding.

Preferably, a plurality of stirring blades 111 are formed at the outer edge of the disc-shaped stirring body 11, and the orientations of adjacent two stirring blades 111 are opposite. Obviously, the stirring efficiency of the stirring paddle 1 is improved by the arrangement.

Preferably, the direction in which the head 41 of the screw 4 is directed toward the shank 42 of the screw 4 is the same as the direction in which the large end of the central bore 121 is directed toward the small end of the central bore 121. With such an arrangement, referring to fig. 2, when the taper sleeve 2 tries to get away from the paddle 1 in a loose manner, the portion where the taper sleeve 2 abuts against the screw 4 is the head 41 of the screw 4, and the contact area based on the head 41 is larger, so that the locking force of the screw 4 to the taper sleeve 2 is stronger. That is, the head 41 of the screw 4 is stronger in the binding force on the taper sleeve 2 than the screw rod 42 of the screw 4, and therefore it is preferable to select the axial position limitation and fixation of the taper sleeve 2 by the head 41 of the screw 4.

Preferably, the number of the screws 4 is multiple, and the multiple screws 4 are arranged around the circumference of the stirring paddle 1 at intervals; wherein, the lock washer 3 is provided with a plurality of and each lock washer 3 is respectively and correspondingly connected with one of the screws 4, or, the optimal setting mode in this embodiment is selected: the number of the stop washer 3 is one, and the stop washer 3 and the stirring paddle 1 are coaxially arranged, the stop washer 3 is provided with a plurality of folding pieces 31, the folding pieces 31 are respectively and correspondingly abutted against one of the screws 4, the whole stop washer 3 is fixed by the plurality of screws 4, and therefore the probability of loosening of the stop washer 3 is low, and the stop washer 3 and the screws 4 are mutually restricted.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a stirring structure with anti-drop function which characterized in that: comprises a stirring paddle (1), a taper sleeve (2), a stop washer (3) and a screw (4); the hole wall of a central hole (121) of the stirring paddle (1) is of a conical curved surface structure, the outer curved surface of the taper sleeve (2) is also of a conical curved surface structure, and the hole wall of the central hole (121) is embedded with the outer curved surface of the taper sleeve (2); the taper sleeve (2) is provided with at least one fracture groove (21) extending along the axial direction so as to split the taper sleeve (2) into an open-loop structure; the screw (4) axially penetrates through the taper sleeve (2) and the stirring paddle (1) along the stirring paddle (1) and is used for driving the taper sleeve (2) and the stirring paddle (1) to axially extrude each other so as to force the diameter of an inner hole of the taper sleeve (2) to be reduced; the stop washer (3) is clamped by the head (41) of the screw (4) and the taper sleeve (2) or by the head (41) of the screw (4) and the stirring paddle (1); the flap (31) of the stop washer (3) is bent to abut against the head (41) of the screw (4) to prevent the screw (4) from rotating.

2. A stirring structure with an anti-drop function as claimed in claim 1, wherein: one of the taper sleeve (2) and the stirring paddle (1) is provided with a unthreaded hole (22), and the other is provided with a threaded hole (122); the screw rod (42) of the screw (4) penetrates through the unthreaded hole (22), and one end, far away from the head (41), of the screw (4) is in threaded connection with the threaded hole (122).

3. A stirring structure with an anti-falling function as recited in claim 2, wherein: the stirring paddle (1) comprises a disc-shaped stirring main body (11) and a fixing ring (12), wherein the disc-shaped stirring main body (11) is fixedly sleeved outside the fixing ring (12) and is coaxially arranged; the central hole (121) is arranged on the fixing ring (12); and the unthreaded hole (22) or the threaded hole (122) is formed in the fixing ring (12).

4. A stirring structure with an anti-drop function as claimed in claim 3, wherein: the disc-shaped stirring main body (11) is connected with the fixing ring (12) through a screw (5); the taper sleeve (2) is provided with an axial avoidance hole (23), and the screw (5) is accommodated in the axial avoidance hole (23).

5. A stirring structure with an anti-falling function as recited in claim 3, wherein: a plurality of stirring sheets (111) are formed at the outer edge of the disc-shaped stirring body (11), and the directions of two adjacent stirring sheets (111) are opposite.

6. A stirring structure with an anti-drop function as claimed in claim 1, wherein: the direction of the head (41) of the screw (4) pointing to the screw rod (42) of the screw (4) is the same as the direction of the large end of the central hole (121) pointing to the small end of the central hole (121).

7. A stirring structure with an anti-drop function as claimed in claim 1, wherein: the number of the screws (4) is multiple, and the screws (4) are arranged around the stirring paddle (1) at intervals in the circumferential direction; the stop washer (3) is provided with a plurality of stop washers (3), each stop washer (3) is correspondingly connected with one screw (4), or the stop washers (3) are one and are coaxially arranged with the stirring paddle (1), each stop washer (3) is provided with a plurality of folding pieces (31), and the folding pieces (31) are correspondingly abutted against one screw (4).

8. A stirring structure with an anti-falling function as recited in claim 1, wherein: the head (41) of the screw (4) is of a prism structure.