CN218281310U - Inner swept wing type stirring paddle - Google Patents

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

Internally swept wing impeller

technical field

The utility model relates to an inner sweeping wing type stirring paddle.

Background technique

The internally swept wing impeller is an important component of the mixer. The internally swept-wing stirring paddle in the prior art (as shown in Figure 1 and Figure 2) has only two paddle arms, and the two paddle arms are independent of each other. When the material to be stirred is a fiber with strong toughness, the paddle arms It is difficult to form sufficient shearing action on it, so it is difficult to stir it sufficiently.

In addition, for fibers with strong toughness, since the paddle arms need to overcome a large force when rotating, the paddle arms in the prior art are independent of each other and are cantilever beams. When the paddle arms bear a large force, the paddle arms There is a possibility of deformation or breakage.

Contents of the invention

In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an inner-sweeping-wing stirring paddle, which has high stirring and shearing performance, and can increase the strength of the paddle arm when used.

The purpose of this utility model adopts following technical scheme to realize:

The inner-swept-wing stirring paddle includes a main body and two paddle arms, and the two paddle arms extend spirally in the axial direction from both ends of the main body, and the ends of the paddle arms are provided with inwardly convex bends part, the bottom wall of the bending part is provided with an installation groove, the installation groove is arranged radially, the inner end of the installation groove extends to the inner side wall of the bending part, and the side part of the bending part is provided There is a countersunk hole, the axial direction of the countersunk hole is perpendicular to the length direction of the installation groove, the two paddle arms are connected by a shear beam, and the two ends of the shear beam are provided with embedded blocks , the embedded block is adapted to the cross-sectional profile of the installation groove, the embedded block is provided with a threaded hole, and the hole wall of the counterbore is provided with a thread, when the embedded block is matched with the installation groove, The embedding block and the installation groove can be fixedly connected by screws, and the section of the shear beam is trapezoidal, and the bottom angle of the trapezoid is 65°-70°.

Specifically, the paddle arm is helical.

Specifically, the shear beam and the rotation axis of the main body are staggered and inclined.

Specifically, the embedded block is in interference fit with the installation groove.

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

Specifically, the cross-sectional trapezoid of the shear beam is an isosceles trapezoid.

Specifically, the base angle of the trapezoidal section of the shear beam is 67°.

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

Specifically, the main body is arranged radially, and the length direction of the main body is perpendicular to the rotation axis of the swept-wing impeller.

Compared with the prior art, the beneficial effects of the utility model are:

The two paddle arms are connected by a shear beam, the cross section of the shear beam is trapezoidal, the base angle of the trapezoid is a, a=65°-70°, and the rotation axis of the shear beam and the main body is staggered and inclined, When the inner-swept-wing agitator rotates, the bottom edge corresponding to the trapezoidal bottom angle of the shear beam can shear and crush the fibers with strong toughness, thereby improving the stirring shear of the inner-swept-wing agitator. All performance.

Furthermore, the two paddle arms are connected by a shear beam, and the two paddle arms are no longer cantilever beams, but the two paddle arms are connected as one, which can greatly improve the strength of the paddle arms and avoid the stress on the paddle arms deformed or broken.

The embedding block is adapted to the cross-sectional profile of the installation groove, so as to prevent the stirred material from entering the gap between the embedding block and the installation groove.

After the embedded block is matched with the installation groove, the embedded block can be fixed with the installation groove by screws, so that the shear beam can be disassembled and replaced. The shearing beam can be removed and replaced with a new shearing beam, so that the inner-swept-wing agitator maintains sufficient agitating and shearing performance continuously.

Description of drawings

Fig. 1 is the perspective view of the internally swept-wing type stirring paddle in the prior art;

Fig. 2 is the positive perspective view of the internally swept wing type stirring paddle in the prior art;

Fig. 3 is the three-dimensional view of the inner sweeping wing type stirring paddle of the present utility model, and it is not installed shearing beam;

Fig. 4 is the sectional view of A-A section among Fig. 3;

Fig. 5 is the three-dimensional view of the internally swept-wing type stirring paddle of the present utility model, and it has installed shearing beam;

Fig. 6 is the sectional view of C-C section among Fig. 5;

Fig. 7 is the sectional view corresponding to the C-C section of the shear beam in Fig. 5;

Fig. 8 is a sectional view of the B-B section in Fig. 5 .

In the figure: 1. Main body; 2. Oar arm; 3. Bending part; 31. Mounting slot; 32. Countersunk hole; 4. Shear beam; 41. Embedded block; 42. Threaded hole.

detailed description

Below, the utility model will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, on the premise of not conflicting, the various embodiments or technical features described below can be combined arbitrarily to form new implementations. example.

Referring to Fig. 3 to Fig. 8, the inward-sweeping-wing impeller includes a main body 1 and two paddle arms 2, and the two paddle arms 2 spirally extend axially from both ends of the main body 1. The end of the paddle arm 2 is provided with an inwardly convex bending portion 3 , the bottom wall of the bending portion 3 is provided with a mounting groove 31 , and the mounting groove 31 is arranged radially. The inner end of the installation groove 31 extends to the inner side wall of the bending portion 3 . A countersunk hole 32 is formed on the side of the bending portion 3 , and the axial direction of the countersunk hole 32 is perpendicular to the length direction of the installation groove 31 .

The two paddle arms 2 are connected by a shear beam 4 . Both ends of the shear beam 4 are provided with embedded blocks 41 , the embedded blocks 41 are adapted to the cross-sectional profile of the mounting groove 31 (as shown in FIG. 6 ), and the embedded blocks 41 are provided with threaded holes 42 . The wall of the counterbore 32 is provided with threads. After the embedded block 41 is matched with the installation groove 31 , the embedded block 41 and the installation groove 31 can be fixedly connected by screws (not shown in the figure). The cross section of the shear beam 4 is trapezoidal (as shown in FIG. 8 ), and the base angle of the trapezoid is a, where a=65°-70°.

Specifically, the paddle arm 2 is in a spiral shape.

Specifically, the rotation axis of the shear beam 4 and the main body 1 is staggered and inclined (as shown in FIG. 5 ).

Specifically, the embedded block 41 is interference-fitted with the installation groove 31 .

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

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

Specifically, the base angle of the trapezoidal section of the shear beam 4 is a, where 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 radially, and the length direction of the main body 1 is perpendicular to the rotation axis of the inner-sweeping-wing agitator.

The characteristics of the internal sweeping wing type stirring paddle of the utility model are:

The two paddle arms 2 are connected by a shear beam 4, the cross section of the shear beam 4 is trapezoidal (as shown in Figure 8), the bottom angle of the trapezoid is a, a=65°-70°, and the shear The axis of rotation of the beam 4 and the main body 1 is staggered and inclined (as shown in Figure 5), so that when the internally swept wing type agitator rotates, the bottom edge corresponding to the bottom angle of the cross-section trapezoid of the shear beam 4 can be used for the stronger toughness. The fibers are sheared and crushed, which can improve the stirring and shearing performance of the inner-sweeping wing impeller.

Furthermore, the two paddle arms 2 are connected by a shear beam 4, and the two paddle arms 2 are no longer cantilever beams, but the two paddle arms 2 are connected as one, so that the strength of the paddle arms 2 can be greatly improved. Avoid paddle arm 2 being deformed or broken by force.

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

After the embedded block 41 is matched with the mounting groove 31, the embedded block 41 and the mounting groove 31 can be affixed by screws (not shown), so that the shear beam 4 can be disassembled and replaced. After the bottom edge corresponding to the bottom corner is blunted, the shear beam 4 can be removed and replaced with a new shear beam 4, so that the internally swept-wing stirring paddle can continue to maintain sufficient stirring and shearing performance.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. The scope of protection required by the utility model.

Claims (9)

1. Inner-sweeping wing type agitator is characterized in that: comprise main body and two paddle arms, two described paddle arms extend along axial spiral from the two ends of described main body, the end of described paddle arm is provided with Inwardly convex bending portion, the bottom wall of the bending portion is provided with a mounting groove, the mounting groove is arranged radially, the inner end of the mounting groove extends to the inner side wall of the bending portion, the bending portion The side of the curved part is provided with a countersunk hole, the axial direction of the countersunk hole is perpendicular to the length direction of the installation groove, and the two paddle arms are connected by a shear beam, and the two sides of the shear beam Each end is provided with an embedded block, the embedded block is adapted to the cross-sectional profile of the installation groove, the embedded block is provided with a threaded hole, and the hole wall of the counterbore is provided with a thread, when the embedded block is matched with the After the installation grooves are matched, the embedded block can be fixedly connected to the installation grooves by screws. The cross section of the shear beam is trapezoidal, and the bottom angle of the trapezoid is 65°-70°. 2. The inward-swept-wing stirring paddle according to claim 1, wherein the paddle arm is helical. 3 . The internally swept-wing stirring impeller according to claim 1 , characterized in that: the rotation axis of the shear beam and the main body are staggered and inclined. 4 . 4. The inner-swept-wing stirring paddle according to claim 1, characterized in that: the embedded block is in interference fit with the installation groove. 5 . The internally swept wing stirring impeller according to claim 1 , wherein the ratio of the length of the embedded block to the length of the shear beam is 1/6-1/4. 6 . The internally swept-wing stirring impeller according to claim 1 , wherein the trapezoidal section of the shearing beam is isosceles trapezoidal. 6 . 7. The inner-swept-wing stirring paddle according to claim 1, characterized in that: the bottom angle of the trapezoidal section of the shear beam is 67°. 8. The inner-swept-wing impeller according to claim 1, characterized in that: the main body and the two paddle arms are integrally formed. 9 . The internally swept-wing impeller according to claim 1 , wherein the main body is arranged radially, and the length direction of the main body is perpendicular to the rotation axis of the internally swept-wing impeller. 10 .

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