CN217855820U - Cycloid disc assembly and cycloid driving type stirring mechanism - Google Patents

Abstract

The utility model discloses a cycloid disc assembly and cycloid drive type stirring mechanism, wherein the cycloid disc assembly comprises a cycloid disc, a fixed gear disc and an eccentric wheel, the cycloid disc is positioned in the fixed gear disc and partially meshed with the fixed gear disc, and the eccentric wheel is connected with a rotating shaft of a motor and drives the cycloid disc to swing; the tooth top contour line of the cycloid disc is an arc, the tooth top contour line and the tooth bottom contour line of the fixed fluted disc are arcs, and the tooth top contour line and the tooth bottom contour line arc of the fixed fluted disc are tangent. The utility model provides a possible great size of cycloid dish subassembly has bigger reduction ratio and more extensive application scene.

Description

Cycloid disc assembly and cycloid driving type stirring mechanism

Technical Field

The utility model relates to a transmission technology for material mixing particularly, relates to a cycloid dish subassembly and cycloid drive formula rabbling mechanism.

Background

A cycloidal speed reducer is a speed reducer adopting a cycloidal pin gear meshing transmission mode, and generally comprises two cycloidal disks, pins and internal toothed disks on the peripheries of the two cycloidal disks, the pins and the internal toothed disks are matched with each other to realize fixed axis input and output of rotary power so as to achieve the purpose of speed reduction.

When manure of livestock and poultry is used as a raw material to manufacture an organic fertilizer, the manure is generally required to be filled into a fermentation tank for fermentation, and the manure in the fermentation tank is stirred to realize deep fermentation, most of the large-capacity manure stirring modes at present adopt a high-power motor or a hydraulic pressure mode for directly driving a stirring shaft to rotate, so that the stirring energy consumption is higher, and the tank body and a fixed component have higher strength requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cycloid dish subassembly and cycloid drive formula rabbling mechanism to solve foretell technical problem.

The utility model provides a cycloid disc assembly, which comprises a cycloid disc, a fixed gear disc and an eccentric wheel, wherein the cycloid disc is positioned in the fixed gear disc and partially meshed with the fixed gear disc, and the eccentric wheel is connected with a motor and drives the cycloid disc to swing; the contour line of the tooth top of the cycloid disc is an arc, the contour line of the tooth top of the fixed gear disc and the contour line of the tooth bottom of the fixed gear disc are arcs, and the contour line of the tooth top of the fixed gear disc is tangent to the arc of the contour line of the tooth bottom of the fixed gear disc.

In order to realize the utility model discloses, further, the gear contour length of fixed gear dish cycle (the total length of two sections circular arcs at adjacent addendum and tooth bottom) divide the diameter of cycloid dish addendum circular arc equals a standard parameter pi (the circumference ratio).

In order to better realize the utility model discloses, furtherly, the definition the number of teeth of fixed gear dish be Z1 the number of teeth of cycloid dish is Z2, then Z1-Z2 is more than or equal to 1.

In order to better realize the utility model discloses, it is further, cycloid dish one side fixed surface is provided with an end cover, the end cover with the cycloid dish forms a cross-section and is the circular shape column cavity, the eccentric wheel is located in the column cavity, the diameter of column cavity is greater than the diameter of eccentric wheel.

For a better realization the utility model discloses, it is further defined the column cavity has first annular edge and second annular edge, the internal diameter of first annular edge is greater than the internal diameter of second annular edge, the radial outside the second annular edge with maximum distance between the first annular edge is L1, defines the perpendicular distance of the tooth root of fixed gear dish and tooth top is L2, and L1= L2.

The utility model also provides a cycloid drive formula rabbling mechanism, including an above-mentioned arbitrary scheme the cycloid dish subassembly, still include the (mixing) shaft, (mixing) shaft one end with cycloid dish opposite side surface fixed connection, and (mixing) shaft axis and cycloid dish central line collineation, the (mixing) shaft other end is connected in the fermentation tank bottom.

In order to realize better the utility model discloses, it is further, be equipped with a plurality of stirring rakes on the (mixing) shaft, the stirring rake has the stirring face that the slope set up.

In order to realize better the utility model discloses, it is further, join in marriage through metal base between (mixing) shaft and fermentation tank bottom and connect, the base with the lower extreme structure of (mixing) shaft is the ball pivot structure.

In order to better realize the utility model discloses, it is further, be connected through the fixed bolster between fixed gear dish and the fermentation cylinder lateral wall, the motor passes through the mounting bracket setting in the eccentric wheel top, and motor shaft's axis and eccentric wheel center of rotation coincide.

The embodiment of the utility model provides a beneficial effect is: compare in current cycloid speed reducer, the utility model provides a cycloid dish subassembly only needs a cycloid dish and fixed fluted disc to cooperate and can realize the relative fixed fluted disc swing of cycloid dish and rotation to reach the mesh that slows down, simultaneously the utility model provides a great size can be accomplished to cycloid dish subassembly, has bigger reduction ratio and more extensive application scene. This application still provides a cycloid drive formula rabbling mechanism with cycloid dish subassembly, compares in current stirring mode, has reduced the power requirement to driving motor, still can follow the cycloid dish swing when the (mixing) shaft is rotatory, makes the (mixing) shaft carry out the upper and lower stirring of minizone on one side rotatory, realizes that the solid stirs the effect that excrement material increases the stirring and reduces the resistance that meets when the (mixing) shaft is rotatory.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a gerotor disk assembly provided in an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of the structure of FIG. 1;

FIG. 3 is a cross-sectional view from another perspective of FIG. 1;

FIG. 4 is a partial structural view of a fixed gear disc and a cycloid disc in the embodiment;

FIG. 5 is a partial tooth profile schematic view of an cycloid disc and a fixed gear disc in an embodiment;

FIG. 6 is a schematic view of an installation of the cycloid driven stirring mechanism of the embodiment;

FIG. 7 is a schematic view of a stirring shaft according to the embodiment;

FIG. 8 is a schematic view of a spherical hinge structure of the embodiment in which the stirring shaft is engaged with the base;

fig. 9 is a schematic view of a mounting structure of the motor of the embodiment.

An icon: 1-placing a wire coil; 11-a motor; 111-a reducer; 12-a mounting frame; 2-fixing a toothed disc; 21-fixing a bracket; 3, eccentric wheel; 31-a profiled hole; 4-end cover; 41-a cylindrical cavity; 5-stirring shaft; 51-hemisphere; 52-stirring paddle; 521-stirring noodles; 6-a base; 61-hemispherical cavity; 7-fermentation tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-5, an embodiment of the present invention provides a cycloid disc assembly, which includes a cycloid disc 1, a fixed gear disc 2 and an eccentric wheel 3.

The outer side of the cycloid disc 1 and the inner side of the fixed gear disc 2 are both provided with teeth capable of being meshed, the cycloid disc 1 is arranged in the fixed gear disc 2 and partially meshed with the fixed gear disc 2, the eccentric wheel 3 is connected with a rotating shaft of the motor 11, the motor 11 drives the eccentric wheel 3 to rotate around a rotating center, the eccentric wheel 3 drives the cycloid disc 1 to swing when rotating, and due to the fact that a part of teeth are meshed between the cycloid disc 1 and the eccentric wheel 3, the cycloid disc 1 can rotate relative to the fixed gear disc 2 when swinging, and when the fixed gear disc 2 is stationary, the cycloid disc 1 rotates.

The outline of the tooth top of the cycloid disc 1 is a circular arc, the outline of the tooth bottom of the cycloid disc 1 can be free from constraint, and only the area of the fixed gear disc 2, which exceeds the meshing range, can not generate interference. The outline of the tooth top and the outline of the tooth bottom of the fixed gear disc 2 are arcs, the outline of the tooth top and the outline of the tooth bottom of the fixed gear disc 2 are tangent, and the tooth top of the cycloid disc 1 moves along the outline surface of the fixed gear disc 2 during rotation, so that rotation is generated.

The eccentric wheel 3 and the motor 11 can adopt the matching of the special-shaped hole 31 and the corresponding special-shaped shaft to transmit the power of the motor 11 to the eccentric wheel 3.

Through the technical scheme, the swing of the driving cycloid disk 1 can adopt the low-power motor 11, so that the cycloid disk 1 rotates slowly while swinging, a good speed reduction effect can be achieved, and the cycloid disk 1 and the fixed gear disk 2 are simple in structure in cooperation, so that the cycloid disk assembly can be large in size and has a larger speed reduction ratio and a wider application scene.

As shown in fig. 5, further, the length of the tooth profile of one period of the fixed disk 2 (the total length of two arcs at the tooth top and the tooth bottom) divided by the diameter of the arc at the tooth top of the cycloid disk 1 is equal to a standard parameter pi. S3 shown in fig. 5 is a complete profile of the circular arc of the tooth top of the cycloid disc 1, and two sections of the reverse circular arcs in S4 are a tooth profile of one period of the fixed gear disc 2. When the length of the tooth profile line of one period of the fixed gear disc 2 is divided by the diameter of the tooth top circular arc of the cycloid disc 1 to be equal to pi, part of teeth of the cycloid disc 1 can be meshed with the fixed gear disc 2 without interference.

Further, the tooth number of the fixed gear disc 2 is defined as Z1, the tooth number of the cycloid disc 1 is defined as Z2, and then Z1-Z2 are larger than or equal to 1. Because the number of teeth of fixed gear disc 2 is greater than the number of teeth of cycloid dish 1 for during the swing of cycloid dish 1 for fixed gear disc 2, the two meshing together not completely, cycloid dish 1 its tooth top constantly moves the tooth top from the tooth bottom of fixed gear disc 2 under the promotion of eccentric wheel 3, moves the tooth bottom again, circulates in proper order, and cycloid dish 1 self also lasts rotates, and corresponding its reduction ratio is Z2:1.

as shown in fig. 1-4, further, an end cover 4 is fixedly disposed on a surface of one side of the cycloid disc 1, the end cover 4 and the cycloid disc 1 can be fixedly disposed in a manner of being fixed by bolts, welding, and the like, the end cover 4 and the cycloid disc 1 form a cylindrical cavity 41 with a circular cross section, the eccentric wheel 3 is located in the cylindrical cavity 41, and the diameter of the cylindrical cavity 41 is greater than the contour of the eccentric wheel 3 and smaller than the maximum rotation diameter of the eccentric wheel 3. When the eccentric wheel 3 rotates, the surface farthest away from the rotation center pushes the side wall of the cylindrical cavity 41, so that the cycloid disc 1 is correspondingly deviated.

As shown in fig. 4, further, the cylindrical cavity 41 is defined to have a first annular edge and a second annular edge, the first annular edge is a track line formed when the profile of the eccentric 3 farthest from the rotation center rotates when the eccentric 3 rotates and is also a maximum track line generated by the cylindrical cavity 41 when the eccentric 3 pushes, the second annular edge is a cross-sectional profile line of the cylindrical cavity 41, the inner diameter of the first annular edge is larger than that of the second annular edge, the maximum distance between the radial direction outside the second annular edge and the first annular edge is L1, the vertical distance between the tooth root of the fixed gear 2 and the tooth crest is defined as L2, and L1= L2.

Further, the length from the center of the cycloid disc 1 to the tooth crest thereof is defined as L3, the length from the center of the fixed gear disc 2 to the tooth root thereof is defined as L4, and then L3 is equal to or slightly smaller than L4-L2/2.

When the cycloid disc 1 is pushed by the eccentric wheel 3 to swing, the pushing distance of the eccentric wheel 3 is the same as the tooth distance of the fixed gear disc 2 entered by the teeth of the eccentric wheel 3, so that the synchronism of the rotation of the eccentric wheel 3 and the rotation of the cycloid wheel is ensured, and the interference in the rotating process is avoided.

The application also provides a cycloid drive type stirring mechanism, which comprises the cycloid disc assembly in any scheme,

as shown in fig. 6-9, the cycloidal driving type stirring mechanism further comprises a stirring shaft 5, one end of the stirring shaft 5 is fixedly connected with the other side surface of the cycloidal coil 1, the axis of the stirring shaft 5 is collinear with the central line of the cycloidal coil 1, and the other end of the stirring shaft 5 is connected to the bottom of the fermentation tank 7. In other words, (mixing) shaft 5 is connected in the bottom of fermentation cylinder 7, and the cycloid dish subassembly sets up in fermentation cylinder 7 top, and (mixing) shaft 5 is connected perpendicularly in the centre of the opposite side of cycloid dish 1 end cover 4, and cycloid dish 1 can drive (mixing) shaft 5 and move together when cycloid dish 1 swing and rotation, makes (mixing) shaft 5 stir the excrement material in the fermentation cylinder 7. Because the cycloidal disk assembly is adopted to reduce the speed of the power output by the motor 11, after the cycloidal disk assembly passes through a larger speed reduction ratio, the rotating speed of the stirring shaft 5 is reduced, the stirring moment is increased, so that the stirring shaft 5 can be driven by the motor 11 with low power, the stirring work can be completed, meanwhile, the reaction force applied to the tank body by the rotation of the motor 11 is reduced, the strength requirement on the tank body is also reduced, and the tank body can be made of low-cost materials.

As shown in fig. 7, a plurality of paddles 52 are further arranged on the stirring shaft 5, the paddles 52 are distributed along the axis and the circumferential direction of the stirring shaft 5 in an array manner, and rotate and stir a plurality of positions in the fermentation tank 7, the paddles 52 have obliquely arranged stirring surfaces 521, and the stress surface between the rotating shaft 5 and the manure is obliquely arranged, so that the resistance of the paddles 52 during stirring is reduced, and the stirring of the manure is facilitated.

As shown in fig. 7 and 8, further, the stirring shaft 5 is connected with the bottom of the fermentation tank 7 through the metal base 6, the metal base 6 is arranged at the center of the bottom of the fermentation tank 7 and has high strength to bear the stirring shaft 5 and the cycloid discs 1 connected above the stirring shaft 5, the base 6 and the lower end of the stirring shaft 5 are constructed in a spherical hinge structure, the base 6 is provided with a hemispherical cavity 61, and the lower end of the stirring shaft 5 is also constructed in a hemispherical body 51, so that when the rocking shaft is arranged in the base 6, the rocking shaft can rotate and rock relative to the base 6. Cooperation cycloid dish 1's swing and pivoted motion, it is rotatory together that (mixing) shaft 5 also follows it when rotating when cycloid dish 1, and cycloid dish 1 is because (mixing) shaft 5 bottom adopts the ball pivot structural connection during the swing, so (mixing) shaft 5's axis also can one end use base 6 as the fulcrum, the other end is followed cycloid dish 1 and is swung together, thereby (mixing) shaft 5 carries out the vertical direction minizone to the excrement material about and rotary motion when the stirring, two directions carry out three-dimensional stirring to the excrement material simultaneously, the effect of stirring has been increased and the rotatory resistance that receives has been reduced.

As shown in FIG. 9, further, the fixed tray 2 is connected with the side wall of the fermentation tank 7 by a fixing bracket 21, the fixing bracket 21 can be fixed at the opening of the fermentation tank 7 by a plurality of cross bars (two, three or four cross bars in a circular array), and then the fixed tray 2 is connected with the cross bars. The motor 11 is arranged above the eccentric wheel 3 through the mounting frame 12, the axis of the rotating shaft of the motor 11 is coincident with the rotating center of the eccentric wheel 3, the mounting frame 12 can be arranged on the fixed gear disc 2, a certain gap is reserved between the mounting frame and the cycloid disc 1, interference is avoided, and for better mounting and supporting the motor 11, the mounting frame 12 can also be mounted in a mode of arranging a plurality of cross rods. A speed reducer 111 may be further provided at the output end of the motor 11 to further reduce the speed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A cycloidal disk assembly is characterized by comprising a cycloidal disk, a fixed gear disk and an eccentric wheel,

the cycloid disc is positioned in the fixed gear disc and partially meshed with the fixed gear disc, and the eccentric wheel is connected with a rotating shaft of the motor and drives the cycloid disc to swing;

the tooth top contour line of the cycloid disc is an arc, the tooth top contour line and the tooth bottom contour line of the fixed gear disc are arcs, and the tooth top contour line and the tooth bottom contour line of the fixed gear disc are tangent to each other.

2. The cycloid disc assembly of claim 1 wherein the total length of adjacent crest and root arcs of the stationary disc divided by the diameter of the crest arc of the cycloid disc equals a criterion parameter pi.

3. The cycloid disc assembly of claim 2, wherein if the number of teeth of the fixed gear disc is defined as Z1 and the number of teeth of the cycloid disc is defined as Z2, Z1-Z2 is greater than or equal to 1.

4. The cycloid disc assembly of claim 1 wherein an end cap is fixedly disposed on a side surface of the cycloid disc, the end cap and the cycloid disc form a cylindrical cavity with a circular cross-section, the eccentric is disposed in the cylindrical cavity, and the diameter of the cylindrical cavity is greater than that of the eccentric.

5. The gerotor disk assembly of claim 4, wherein the cylindrical cavity is defined to have a first annular edge and a second annular edge, the first annular edge having an inner diameter greater than an inner diameter of the second annular edge, a maximum distance between a radial direction outside the second annular edge and the first annular edge is L1, a perpendicular distance between a tooth root and a tooth tip of the fixed gear disk is defined to be L2, and L1= L2.

6. A cycloidal drive type stirring mechanism is characterized by comprising the cycloidal disc assembly of any one of claims 1-5 and further comprising a stirring shaft, wherein one end of the stirring shaft is fixedly connected with the other side surface of the cycloidal disc, the axis of the stirring shaft is collinear with the central line of the cycloidal disc, and the other end of the stirring shaft is connected to the bottom of a fermentation tank.

7. The cycloidal driven stirring mechanism of claim 6, wherein the stirring shaft is coupled to the bottom of the fermentation tank through a metal base, and the lower ends of the base and the stirring shaft are constructed in a spherical hinge structure.

8. The cycloid driven stirring mechanism of claim 6 or 7, wherein the fixed gear disc is connected with the side wall of the fermentation tank through a fixed bracket, the motor is arranged above the eccentric wheel through a mounting frame, and the axis of the rotating shaft of the motor is coincident with the rotating center of the eccentric wheel.

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