CN218281310U

CN218281310U - Inner swept wing type stirring paddle

Info

Publication number: CN218281310U
Application number: CN202220270543.5U
Authority: CN
Inventors: 毛礼强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2023-01-13
Anticipated expiration: 2032-02-10

Abstract

The utility model discloses an interior wing formula stirring rake of sweeping, including main part and two oar arms, two oar arms play from the both ends of main part and extend along axial spiral, the tip of oar arm is equipped with the portion of bending of convex inwards, the mounting groove is seted up to the diapire of the portion of bending, the mounting groove is along radially setting up, the inner of mounting groove extends to the inside wall of the portion of bending, the lateral part of the portion of bending is equipped with the counter sink, the axial of counter sink is perpendicular with the length direction of mounting groove, connect through shearing the roof beam between two oar arms, the both ends of shearing the roof beam all are equipped with the embedding piece, embedding piece and mounting groove cross section profile adaptation, the embedding piece is equipped with the screw hole, the pore wall of counter sink is equipped with the screw thread, after embedding piece and mounting groove cooperation, accessible screw will embed piece and mounting groove rigid coupling, the cross-section of shearing the roof beam is trapezoidal form, trapezoidal base angle is 65 ° -70. The stirring shear device has higher stirring shear performance, and can improve the strength of the paddle arm when in use.

Description

Inner swept wing type stirring paddle

Technical Field

The utility model relates to an inside sweep wing formula stirring rake.

Background

The inner swept wing type stirring paddle is used as an important component of the stirrer. In the inner swept wing type stirring paddle in the prior art (as shown in fig. 1 and fig. 2), only two paddle arms are provided, and the two paddle arms are independent from each other, and when the stirred substance is a fiber with strong toughness, the paddle arms are difficult to form a sufficient shearing effect on the stirred substance, so that the stirred substance is difficult to be fully stirred.

In addition, for the fiber with stronger toughness, because the paddle arms need to overcome larger force when rotating, the paddle arms in the prior art are independent of each other and are cantilever beams, and when the paddle arms bear larger force, the paddle arms are possibly deformed or broken.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide an inner swept wing type stirring paddle, which has higher stirring and shearing performance and can improve the strength of a paddle arm when in use.

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

the inner swept wing type stirring paddle comprises a main body and two paddle arms, wherein the two paddle arms extend spirally along the axial direction from two ends of the main body, inward convex bending portions are arranged at the end portions of the paddle arms, mounting grooves are formed in the bottom walls of the bending portions, the mounting grooves are arranged along the radial direction, the inner ends of the mounting grooves extend to the inner side walls of the bending portions, countersunk holes are formed in the lateral portions of the bending portions, the axial direction of the countersunk holes is perpendicular to the length direction of the mounting grooves, the two paddle arms are connected through shearing beams, embedding blocks are arranged at two ends of each shearing beam, the embedding blocks are matched with the cross section profiles of the mounting grooves, threaded holes are formed in the embedding blocks, when the embedding blocks are matched with the mounting grooves, the embedding blocks are fixedly connected with the mounting grooves through screws, the cross sections of the shearing beams are in a ladder shape, and the bottom angles of the ladder shape are 65-70 degrees.

In particular, the paddle arm is helical.

Specifically, the rotation axes of the shear beam and the main body are inclined in a staggered manner.

Specifically, the embedding block is in interference fit with the mounting groove.

Specifically, the ratio of the length of the embedded block to the length of the shear beam is 1/6 to 1/4.

Specifically, the section trapezoid of the shear beam is an isosceles trapezoid.

Specifically, the bottom angle of the cross-sectional trapezoid of the shear beam is 67 °.

Specifically, the main body and the two paddle arms are integrally formed.

Specifically, the main body is arranged along the radial direction, and the length direction of the main body is perpendicular to the rotation axis of the inner swept wing type stirring paddle.

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

the two paddle arms are connected through the shearing beam, the cross section of the shearing beam is in a trapezoid shape, the bottom angle of the trapezoid is a, a = 65-70 degrees, and the shearing beam and the rotating shaft of the main body are inclined in a staggered mode, so that when the inner swept wing type stirring paddle rotates, the bottom edge corresponding to the bottom angle of the cross section of the shearing beam can shear and smash fibers with high toughness, and the stirring and shearing performance of the inner swept wing type stirring paddle can be improved.

Moreover, two oar arms are connected through the shearing beam, and two oar arms are no longer the cantilever beam respectively, but two oar arms link as an organic whole to can improve the intensity of oar arm greatly, avoid oar arm atress deformation or rupture.

The embedded block is matched with the cross section profile of the mounting groove, so that the stirred material is prevented from entering a gap between the embedded block and the mounting groove.

After the embedding block is matched with the mounting groove, the embedding block is fixedly connected with the mounting groove through screws, so that the shearing beam can be detached and replaced, after the edge of the bottom edge corresponding to the trapezoidal bottom angle of the section of the shearing beam is ground to be blunt, the shearing beam can be detached, the shearing beam is replaced, and the inner swept wing type stirring paddle continuously keeps enough stirring and shearing performance.

Drawings

FIG. 1 is a perspective view of a prior art inner swept wing paddle;

FIG. 2 is a front perspective view of a prior art inner swept wing paddle;

fig. 3 is a perspective view of the inner swept wing type stirring paddle of the present invention, which is not provided with a shear beam;

FIG. 4 isbase:Sub>A cross-sectional view of section A-A of FIG. 3;

fig. 5 is a perspective view of the inner swept wing type stirring paddle of the present invention, with a shear beam installed;

FIG. 6 is a cross-sectional view of section C-C of FIG. 5;

FIG. 7 is a cross-sectional view of the shear beam at section C-C in FIG. 5;

fig. 8 is a cross-sectional view of section B-B in fig. 5.

In the figure: 1. a main body; 2. a paddle arm; 3. a bending part; 31. mounting grooves; 32. a countersunk hole; 4. shearing the beam; 41. embedding a block; 42. a threaded bore.

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.

Referring to fig. 3 to 8, the inner swept wing type stirring paddle comprises a main body 1 and two paddle arms 2, wherein the two paddle arms 2 spirally extend from two ends of the main body 1 along the axial direction. The end part of the paddle arm 2 is provided with a bending part 3 which protrudes inwards, the bottom wall of the bending part 3 is provided with a mounting groove 31, and the mounting groove 31 is arranged along the radial direction. The inner end of the mounting groove 31 extends to the inner side wall of the bending part 3. The side of the bending part 3 is provided with a counter bore 32, and the axial direction of the counter bore 32 is vertical to the length direction of the mounting groove 31.

The two paddle arms 2 are connected by a shear beam 4. The two ends of the shear beam 4 are provided with embedded blocks 41, the embedded blocks 41 are matched with the cross section profile of the mounting groove 31 (as shown in fig. 6), and the embedded blocks 41 are provided with threaded holes 42. The walls of the counter bores 32 are provided with threads. After the insertion block 41 is engaged with the installation groove 31, the insertion block 41 may be fixedly coupled with the installation groove 31 by a screw (not shown). The shear beam 4 has a trapezoidal cross-section (as shown in fig. 8), with the base angle of the trapezoid being a, a =65 ° -70 °.

In particular, the paddle arm 2 is helical.

Specifically, the shear beam 4 is inclined to the rotation axis of the body 1 in a staggered manner (as shown in fig. 5).

Specifically, the insert block 41 is interference-fitted with the mounting groove 31.

Specifically, the ratio of the length of the insert block 41 to the length of the shear beam 4 is 1/6 to 1/4.

Specifically, the cross-sectional trapezoid of the shear beam 4 is an isosceles trapezoid (as shown in fig. 8).

Specifically, the bottom angle of the cross-sectional trapezoid of the shear beam 4 is a, a =67 ° (see fig. 8).

Specifically, the main body 1 and the two paddle arms 2 are integrally formed.

Specifically, the main body 1 is arranged along the radial direction, and the length direction of the main body 1 is perpendicular to the rotation axis of the inner swept wing type stirring paddle.

The utility model discloses an interior characteristics of sweeping wing formula stirring rake do:

the two paddle arms 2 are connected through the shear beam 4, the section of the shear beam 4 is in a trapezoid shape (as shown in fig. 8), the bottom angle of the trapezoid is a, a =65 ° -70 °, and the shear beam 4 and the rotating shaft of the main body 1 are inclined in a staggered manner (as shown in fig. 5), so that when the inner swept wing type paddle rotates, the bottom edge corresponding to the trapezoid bottom angle of the section of the shear beam 4 can shear and smash the fiber with high toughness, and the stirring and shearing performance of the inner swept wing type paddle can be improved.

Moreover, two oar arms 2 are connected through shearing roof beam 4 between, and two oar arms 2 are respectively no longer the cantilever beam, but two oar arms 2 link as an organic whole to can improve the intensity of oar arm 2 greatly, avoid oar arm 2 atress deformation or rupture.

The embedded block 41 is adapted to the cross-sectional profile of the mounting groove 31 (as shown in fig. 6), so as to prevent the stirred material from entering the gap between the embedded block 41 and the mounting groove 31.

After the embedded block 41 is matched with the mounting groove 31, the embedded block 41 can be fixedly connected with the mounting groove 31 through a screw (not shown), so that the shearing beam 4 can be detached and replaced, after the bottom edge corresponding to the bottom angle of the trapezoid of the section of the shearing beam 4 is dull ground, the shearing beam 4 can be detached, and a new shearing beam 4 can be replaced, so that the inner swept wing type stirring paddle can continuously keep enough stirring and shearing performance.

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. Inside sweep wing formula stirring rake, its characterized in that: the improved structure of the propeller comprises a main body and two propeller arms, wherein the two propeller arms extend from two ends of the main body in a spiral mode along the axial direction, the end portions of the propeller arms are provided with inward-protruding bending portions, the bottom walls of the bending portions are provided with mounting grooves, the mounting grooves are arranged in the radial direction, the inner ends of the mounting grooves extend to the inner side walls of the bending portions, the side portions of the bending portions are provided with countersunk holes, the axial direction of the countersunk holes is perpendicular to the length direction of the mounting grooves, the two propeller arms are connected through shearing beams, embedded blocks are arranged at two ends of the shearing beams, the embedded blocks are matched with the cross section profiles of the mounting grooves, the embedded blocks are provided with threaded holes, the hole walls of the countersunk holes are provided with threads, when the embedded blocks are matched with the mounting grooves, the embedded blocks are fixedly connected with the mounting grooves through screws, the cross sections of the shearing beams are in a trapezoid shape, and the bottom angle of the trapezoid is 65-70 degrees.

2. The internally swept wing paddle of claim 1, wherein: the paddle arm is spiral.

3. The internally swept wing paddle of claim 1 wherein: the rotation axes of the shear beam and the main body are inclined in a staggered manner.

4. The internally swept wing paddle of claim 1, wherein: the embedded block is in interference fit with the mounting groove.

5. The internally swept wing paddle of claim 1, wherein: the ratio of the length of the embedded block to the length of the shear beam is 1/6 to 1/4.

6. The internally swept wing paddle of claim 1, wherein: the section trapezoid of the shearing beam is an isosceles trapezoid.

7. The internally swept wing paddle of claim 1 wherein: the bottom angle of the section trapezoid of the shear beam is 67 degrees.

8. The internally swept wing paddle of claim 1, wherein: the main part and two the oar arm integrated into one piece.

9. The internally swept wing paddle of claim 1, wherein: the main body is arranged along the radial direction, and the length direction of the main body is vertical to the rotation axis of the inner swept wing type stirring paddle.